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1[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/arknightsfull2460377.jpg]]
2[[caption-width-right:350:''[[{{Tagline}} Fight, in this endless night, until the dawn.]][[note]]Pictured from left to right: [[ReasonableAuthorityFigure Kal'tsit]], [[YoungAndInCharge Amiya]], [[BigBad Talulah]] (in back), and [[TeethClenchedTeamwork Ch'en]].[[/note]]'']]
3->'''Kal'tsit:''' In the past few hundred years, Originium has become the lifeblood of the world. It first gave birth to greed, power, pain, hatred. And soon it breeds countless monsters - us. We were deprived of our identities, and were named -- The Infected.\
4'''Amiya:''' We were manipulated. We were betrayed. We were blinded with hopes. And the dead never returned... If the footprints of life are destined to be buried by time...then we will never stop moving forward. Dr. Kal'tsit, be our dawn...\
5'''Kal'tsit:''' But what about you?\
6'''Amiya:''' With my companions, I am never alone. After all, we are... Arknights.
7-->--'''[[https://www.youtube.com/watch?v=mvivPy7j6_Q Official Trailer 2]], "The Overture"'''
8''Arknights'' (Chinese: 明日方舟[[labelnote:Pinyin]]míng rì fāng zhōu[[/labelnote]]; lit. "Tomorrow's Ark") is a mobile ScienceFantasy TowerDefense game with RPGElements developed by Hypergryph Network Technologies and Studio Montagne. Developed in Shanghai, China and originally available in Chinese since May 2019, a trio of international servers (in English, Japanese and Korean, with the English version available in most Anglophone countries, much of Europe, and southeast Asia) were opened to the public on January 16, 2020. The game was made available in Taiwan on June 29, 2020.
9
10The CrapsackWorld of Terra is plagued by not only war and corruption, but a literal plague in the form of Oripathy, an infectious, incurable disease that has spread across the populace for the past several centuries, based on contact with the seeming wonder material Originium. Originium can power devices and achieve effects that are, for all practical purposes, FunctionalMagic, but overexposure causes Oripathy, in which the afflicted's tissues are slowly transformed into a form of Originium that is even more virulent than the "naturally"-occuring mineral. Sufficient crystallization, naturally, results in death. Those with Oripathy became known as the "Infected", and are outcast and feared by the general public, if not outight punished by the government. In response to the rising Oripathy pandemic (as industry begins to rely ever more on Originium's incredible generative and transformative properties), many of the Infected banded together to fend for themselves, with only each other to rely on.
11
12You awaken as the Doctor, a master tactician and member of the group "Rhodes Island", a private medical company based on a small [[BaseOnWheels nomadic city]] of the same name; Rhodes is composed mainly of Infected, drawn from the world over and all walks of life, who seek a cure for Oripathy and to end the stigma against the Infected, and in a world as dangerous as Terra has become, maintains a defense force that it has had to use far more often than its leadership would entirely prefer. Severe trauma has resulted in the loss of your memories, and you are greeted by utter chaos: on the brink of a Catastrophe (the manifestation of Originium deposits via sudden natural disasters), the forces of the Reunion Movement, a band of Infected who seek revenge on the society that shunned them, have suddenly struck back against the Empire of Ursus, seemingly hell-bent on driving the entire city of Chernobog into the Catastrophe's heart and annihilating the city in the process. With no one but your loyal, seemingly-long-time compatriot Amiya and your fellow Rhodes Island Operatives to guide you, you are now tasked with leading the charge to your freedom, and uncovering the truth behind the mysteries of your past and future, all as Rhodes Island continues to face the myriad stories and conflicts etching the vast land.
13
14Visit the global website [[https://www.arknights.global/ here]].
15
16Arknights had since expanded into different media with the following supplementary materials:
17[[folder:Webcomic]]
18!! Anthologies:
19* [[https://twitter.com/ArknightsStaff/status/1273540971523829761 Arknights Official Anthology Volume 1]], announced on June 18 2020.
20!! Official webcomics:
21The official [[https://terra-historicus.hypergryph.com/ "Terra Historicus" website]] publishes a number of webcomic spinoffs. Unlike the anthology above, the below spinoffs are considered canon supplementary material:
22* ''A1 Operations Preparation Detachment'': A side story centered on Rhodes Island's Reserve Op Team A1 operators Fang, Kroos, and Beagle.
23* ''Rhodes Island's Records of Originium - Black Steel'': A side story centered on Blacksteel-affiliated operators Franka, Liskarm, Jessica, and Vanilla.
24* ''Rhodes Island's Records of Originium - Rhine Lab'': A side story centered on Rhine Lab-affiliated operators Ifrit, Silence, Saria, and Ptilopsis.
25* ''Rhodes Kitchen -[=TIDBITS=]-'': Aindividual side stories about Rhodes Island's operators and their daily meals.
26* ''Angelina - Sketches of THIS Messenger's Journey'': A side story centered on Catastrophe Messenger Angelina.
27* ''Prelude Suite: Cadenza Virtuosa'': A side story centered on Laterano-affiliated operators Virtuosa and Executor.
28* ''Prelude Suite: Sharp Blade, Silver Edge'': A side story centered on Karlan Trade-affiliated operators [=SilverAsh=], Gnosis, and Degenbrecher centering on the early days of Karlan Trade.
29* ''Let's Have a Dinner Together'': A side story centered on Sui siblings Nian, Dusk, Ling, and Chongyue.
30* ''Arknights: OPERATORS!'': A series of short slice-of-life 4-koma chapters that is mainly uploaded by the [[https://twitter.com/ArknightsStaff Japanese server Arknights']] X (Formerly Twitter) account which focuses on one operator for three pages at most. This 4-koma series is illustrated by [[https://twitter.com/kyo_zip 狂zip]].
31* ''123 Rhodes Island!?'': Another series of 4-koma webcomic media akin to ''OPERATORS!''. Unlike ''OPERATORS!'', however, ''123 Rhodes Island!?'' is a gag manga in nature.
32[[/folder]]
33
34[[folder:Animation]]
35!!Official Anime Adaptation
36* ''Arknights: Prelude to Dawn'': The teaser trailer [[https://www.youtube.com/watch?v=NakocJ9Ky0I was announced]] on October 24, 2021. [[https://www.youtube.com/watch?v=5cwQeezbnWM The official trailer]] was revealed on April 23, 2022, as part of the CN 3rd Anniversary livestream. [[https://www.youtube.com/watch?v=VS6rsy-tVNU The third PV]] announced that it would start airing on October 28, 2022, and [[https://www.youtube.com/watch?v=_Q4zGuEqi8c the fourth PV]] announced it would also premiere globally on Crunchyroll. It adapts Episodes 0-3 of the main story.
37* ''Arknights: Perish in Frost'': [[https://www.youtube.com/watch?v=a2fYkEgZqTM The teaser trailer]] for the second anime adaptation was revealed on April 22, 2023. [[https://www.youtube.com/watch?v=G_wEICcHRNs The official trailer]] was revealed on September 20, 2023, announcing that it would start airing on October 6. It adapts Episodes 4-6 of the main story.
38* ''Arknights: Rise from Ember'': [[https://www.youtube.com/watch?v=eR3PY1Cka0o The teaser trailer]] for the third season was revealed on April 27 2024. It presumably adapts Episodes 7-8 of the main story.
39
40!!Short animation
41* Kay's Daily Doodles: The ''[[https://www.youtube.com/watch?v=MdBbLUdB4LQ Kay's Daily Doodles]]'' short animation was initially released on April 21, 2023 as commemoration with the release and reveal of the ''Il Siracusano'' event for the global servers. It was eventually [[https://www.youtube.com/watch?v=_9Q1Z65Ul8Q teased on October 23, 2023]] to become an actual short animation series. The first episode was released on December 1, 2023, with the episodes being [[https://www.youtube.com/playlist?list=PLbuSQ8SJFnFH7D7_hwX94t-u3tyUxknsl uploaded and compiled in the Official Arknights Youtube channel]] periodically before concluding on January 5, 2024.
42* ''Lee's Detective Agency: A Day in Lungmen'': A spin-off series starring Aak, Hung, Waai Fu and Lee of the titular detective agency (although they [[InformedAttribute insist]] that they [[ThePiratesWhoDontDoAnything do everything but detective work]], as that's police business), showing off their day-to-day lives in Lungmen. Individual episodes are available in Japanese with English subtitles via Crunchyroll's [=YouTube=] channel. [[https://youtu.be/6FPc0PeB3rM Pilot]], [[https://youtu.be/hbgDq3-NYug Episode 1]], [[https://youtu.be/xWPcVfuLlqU Episode 2]], [[https://youtu.be/kytgTOFuAUc Episode 3]], [[https://youtu.be/Orh7x37DGts Episode 4]], [[https://youtu.be/dAEHFHxz9YY Episode 5]], [[https://youtu.be/HWMkzpgcTtY Episode 6]], [[https://youtu.be/40YHw5nTQIo Special Episode 1]], [[https://youtu.be/v9P6jyhFpHw Special Episode 2]].
43
44[[/folder]]
45
46[[folder:Spinoffs]]
47* ''[[https://endfield.hypergryph.global/en Arknights: Endfield]]'': A spinoff[[spoiler:/seeming StealthSequel]] to the main mobile game, [[https://www.youtube.com/watch?v=oo0deb64GNw was announced]] on March 18, 2022, with a [[https://www.youtube.com/watch?v=iWUkSZyjUyM second]] [[https://www.youtube.com/watch?v=JcsOm6WSBDA set]] of trailers released on October 26, 2023. It is currently in the technical test stage.
48[[/folder]]
49
50[[foldercontrol]]
51
52----
53!!This game provides examples of:
54[[folder: A-B]]
55* AbsurdlyHighLevelCap: Don't let the numbers fool you: operators of 3-star rarity and up can be promoted once they've hit their respective level caps, which confers beneficial upgrades on top of resetting their level back to 1, allowing one to continue feeding them. The rarer the unit, the higher their effective level caps will be. A 6-star operator with 2 Elite promotions clocks in at what's effectively ''220'' levels. [[MoneySink And good luck raising them that high!]]
56* AccentAdaptation: The English localization often adds extra details to character dialogue such as slang or dialect native to the real-world counterpart of the speaker's home, or have them throw in words in their native language. This also applies to the spoken dubs which are often spoken in a native accent on top of all of the above.
57* AchillesHeel:
58** There is a universal, but rather minor weakness present for all units classified as a ''ranged'' operator, in which they lack the ability to attack blocked enemies, whereas ''melee'' operators are able to do so. This isn't noticeable at first glance, but if an enemy approaches and gets blocked by a ranged operator from a tile that is ''not'' within their shooting range, they will not turn around and retaliate while enemies attack them; in the same situation, a melee operator would turn around and attack them fine. This can be observed in stages that allow ranged operators to be deployed on ground tiles, including but not limited to: H7-1 or the Cargo Escort stages.
59** Juggernauts, Mushas, and Reapers have elemental damage as their weakness. While they can be healed from normal damage with their attacks, the fact that Medics cannot heal them directly means that Wandering Medics are unable to heal the buildup of elemental damage, leaving these melee Operators very vulnerable to enemies or environments that deal elemental effects. The sole exception is Highmore, a Reaper who directly heals elemental effects with every enemy she hits. Eyjafjalla the Hvit Aska, a limited Wandering Medic, is notably able to negate this weakness by passively regenerating Elemental buildup on everything in her range, even units that can't be healed normally.
60* AdamSmithHatesYourGuts: The money farming in this game is ''miserable'', yet everything meaningful costs a crap ton of LMD to acquire.
61** Building a room in your base? Be ready to fork over upwards of tens of thousands of LMD to cover the cost of raw materials. Spending NonCombatEXP to level up your operators? LMD. Promoting an operator to the next rank? You can bet it's LMD. One must really wonder why it costs money for someone to sit in a room and watch combat training tapes for a while to gain experience.
62** Keep in mind, the most LMD you can get per instance in this game is 7,500 for a single run of Cargo Escort 5, which costs you a whopping 30 Sanity to do and isn't even for half of the week. Even on the days it ''is'' open, the limited Sanity count exists to crimp down on how many times you can farm if you're not willing to recharge with Originite Prime, therefore how much LMD you can earn. Meanwhile, promoting a 6-star operator to Elite 2 costs ''180,000'' in cash alone, neverminding the amount poured into crafting the rare materials they also need and the sheer mountains of dosh spent leveling them up to that point in the first place. "MoneySink" feels like a severe {{understatement}} when it comes to promoting 6-stars, and 5-stars are only marginally cheaper. The second most effective LMD farming map, S4-6, costs 30% less Sanity to run (21 vs. 30) and is open at all times, but it also gives you only about half of what CE-5 would normally yield, so it's not nearly as efficient as an alternative, especially when you're looking to upgrade the final tiers of a base facility or promote someone to Elite 2.
63** ''Arknights'' is not a game where BribingYourWayToVictory can help you in this regard (at least not from ''the very beginning''): the shop doesn't sell LMD packs outside of special one-time, level-gated bundles, which contain sizable amounts of money along with rare materials and Orundum, but won't help you much in the long run. The only recurring bundle you can purchase gives you about 80,000 (which is ''very'' easily consumed, mind) in exchange for 10 bucks, and you can only buy one per week.
64** With the removal of the Sanity refresh cap, there is a ''very roundabout'' way to turn real money into LMD at any time. First, the base must reach Level 4 to unlock Fast Charge (gathering the necessary materials requires beating 3-4); then, the base's Factory and Trading Post productions (preferably the ones with the highest possible productivity) must be accelerated via drones. Use your Sanity to Fast Charge your drone supply, then buy Originium Prime to refill Sanity on the spot. This is unsurprisingly inefficient compared to running the aforementioned CE-5, but those who ''massively'' value their time over their money have this option all the same.
65** It is worth noting, however, that the intended primary source of LMD income in the game is not farming or [[BribingYourWayToVictory whaling]], but the Rhodes Island Infrastructure Complex (RIIC) base, which is capable of almost ''literally'' printing money.[[note]](RIIC Factories, which look very much like giant 3D printers, produce gold bars that can then be traded for LMD in RIIC Trading Posts. The only resources consumed during this process are time and Operator morale.)[[/note]] While EarlyGameHell is in effect to some extent, by the time you actually ''need'' things like high-level, high-Rarity Elite and Elite 2 Operators, a well-built base should be producing a few ''tens of thousands'' of LMD per day with only minor supervision on the player's part. That said, if a player finds themselves in need of massive amounts of LMD ''right now'' for some reason, their options are fairly limited.
66* ADogNamedPerro: The "Ancient" race based on dogs is actually called "Perro". On the other hand, the wolf-like race is "Lupo", the foxes are "Vulpo", etc...
67* AdvertisedExtra:
68** Despite only appearing as a minor side character in the main story, Liskarm is in a lot of promotional material like trailers and official arts. Also, a lot of those materials make it appear that she fights in Chernobog along with the Chernobog Guards, but her appearance is in Lungmen.
69** None of the Operators that you get as "Darknights Memoir" event reward and in the accompanying banner "Illusion of the Past" has any role in the event story.
70* AerithAndBob: Characters' codenames range from exotic/fantasy-sounding ("Kalt'sit", "Talulah", "Exusiai") to simple English words ("Savage", "Blue Poison") to foreign/Japanese names ("Shirayuki", "Matoimaru", "Hoshiguma") to [[https://en.wikipedia.org/wiki/Camel_case Camel case]] ("[=SilverAsh=]", "[=GreyThroat=]") to mundane names ("Jessica", "May") to locations ("Texas", "Lappland"). There's even a character who is just named "Big Bob"!
71* TheAlcatraz: Mansfield State Prison is a [[PrisonShip mobile prison]] that travels through some of the most inhospitable regions of Columbia, meaning while escaping isn't too difficult, making it back to civilization alive is next to impossible, to the point where there's a memorial in the courtyard dedicated to anyone who tried. Nonetheless, Mountain, Kafka, and Robin all managed to break out prior to joining Rhodes Island, with ''Mansfield Break'' covering how they did it.
72* AlienSky: Though not obvious from the ground, Terra has a mysterious artificial barrier around the planet that prevents any rockets or other craft from reaching orbit. This barrier distorts the stars and view of space such that astronomy is extremely difficult. Nothing on Terra can pierce the barrier, and developing a way to breach it and find out what lies beyond it is the long-term goal of Rhine Lab's Control.
73* AliensNeverInventedTheWheel:
74** Since most of the weapon development in Terra was based around Originium, gunpowder and regular chemical explosives in general were never invented. Notably, Rhodes's engineering team were utterly mystified by the guns brought in by [[VideoGame/RainbowSixSiege the Team Rainbow operators]], and had to heavily modify them to run on Originium simply because the tech needed to maintain those weapons just doesn't exist.
75** Space-based technology is nonexistent because of the strange barrier that surrounds the planet and prevents anything from reaching orbit.
76* AllForNothing: The entirety of [[spoiler:Chapter 2's RescueArc becomes this in its ending. You'd think all is well when Rhodes Island finally managed to turn over Misha to the LGD, enough for the Penguin Logistics' operators to consider their contract done for the day? Nope, an angered Skullshatterer makes his way to Amiya's group. And even if our protagonists did manage to hold said Reunion leader off, Skullshatter reveals that he's merely acting as a decoy to stall and distract Rhodes Island while W secretly ambushed Misha's new rescue team and retrieved the girl for their group. The first half of Chapter 3 has Amiya's group trying to take Misha back, and although they managed to kill Skullshatterer, in the end Misha herself took after Skullshatterer's identity, ultimately forcing them to kill Misha and greatly disturbing Amiya.]]
77* AllMythsAreTrue: In one of "Rewinding Breeze" story section "Stories from the Sky", Suzuran, Shamare, Mousse, and Popukar are telling each other their hometown's fairy tales. In the end, Shamare tells her doll, in LeaningOnTheFourthWall manner, that the fairy tales are VeryLooselyBasedOnATrueStory. Given that the setting has magic, immortals, gods, and such living in the modern day, this might not be a stretch. Indeed, the story of "Who is Real?" confirms that the Yen fairy tale "Dusk Beauty Flying to the Moon" is true, albeit the details are partially innaccurate.
78* AllTheOtherReindeer: Those infected with oripathy see themselves discriminated, feared, hated, or exiled by the non-infected. But the worst case is when the Infected get killed or "purged" by the opposition.
79* AllThereInTheManual:
80** The official character artbook shows a lot of character details that never really visible in the game - like how Yato looks like without a mask or what color is Kroos' eyes (they're green).
81** When an operator is debuted CN server, the official weibo account post that announces the operator includes a short list of the operator's personal skills and small blurb connected to them. For example, in Irene's announcement, it is said that one of her 'skills' is eavesdropping, and her blurb is about how [[ExactEavesdropping she walks in]] on what is implied to be Elysium and Thorns' conversation about their wariness of the Inquisition. This sort of details [[NoExportForYou don't exist in Global servers' Twitter account announcements]].
82** Since "Lone Trail", Arknights' official social media will post in-universe documents that serves as sidestory event's after action report. When an event is rerun, it will retroactively gain these documents too. Special Operation vignettes don't get these posts.
83* AllYourBaseAreBelongToUs: [[spoiler:The {{cliffhanger}} that was set up at the end of Chapter 4 has the Reunion Movement taking over the L.G.D. Headquarters and are slowly spreading out across the city of Lungmen. The next chapter involves Ch'en and her group on a mission to take it back. The final cutscenes of Chapter 5 reveal that it was Mephisto and Faust who were behind the takeover, and they've set up the HQ as a place to regroup, with its rooftop as their command center.]]
84* AlmightyJanitor: Certain operators are InexplicablyAwesome despite their occupations being rather mundane and not indicative of any impressive combat capabilities, such as Earthspirit the geologist, Orchid the former fashion magazine editor, and Shaw the firefighter. Angelina in particular was an OrdinaryHighSchoolStudent before her Infection made her a GravityMaster, and even then, she only uses her immense power to work as a part-time courier. Additionally, lore-wise, most operators that are very strong in gameplay are stated to have ''no combat experience'' in their Archive files.
85* AlphabeticalThemeNaming: '''A'''osta, '''B'''roca, '''C'''hiave, all part of the same gang.
86* AlwaysAccurateAttack: Your operators will always land their shots or melee attacks so long as they have a valid target to hit, since most enemies lack the ability to dodge, though some new enemies such as "Redmark" Infiltrators and Delinquents (from Operation Originium Dust and Dossoles Holiday, respectively) are capable of dodging attacks. Zigzagged with the enemy forces, since some of your operators ''can'' dodge their attacks, but their skills generally ''will'' hit without fail, such as the Siesta Sniper's stun shots, which will take effect, even if your operators managed to evade the damage they would have otherwise taken from the proc.
87* AmazonBrigade:
88** Due to the game's ImprobablyFemaleCast, it's very easy to build a strong and well-balanced team this way. In fact, many of the playable factions and small divisions within Rhodes Island (e.g. Followers, Penguin Logistics, etc...) are composed of nothing ''but'' female operators.
89** Gameplay-wise, until Executor and Flamebringer debuted as playable characters, all 5-star operators are female.
90** During the initial launch of the game, the Supporter and Specialist class consists of only female operators up until the introduction of Gnosis and Aak in their respective classes.
91* AmbidextrousSprite: Characters' in-game sprites can flip sideways, but some asymmetrical features (i.e. Lappland's scar) will be swapped as well.
92* AmbiguousEnding: The final fate of the Last Kheshig, Tola, in "Near Light" as the epilogue [[spoiler:reveals that after a TimeSkip of unknown length from the year 1097, all that remains of him is his horn, which two Ursus soldiers find on a routine patrol. Though some of his Nightzmora Arts still seem to be imbued within the horn as the soldiers hear war drums and clashing weapons when they pick it up, they find no evidence of who left it there and with no context for the horn or what they experience from it, they dismiss it as a harmless freak anomaly. This ultimately leaves the questions of when this went down and what happened to Tola after he trudged off into the northern snows to find the other Kheshigs unanswered.]]
93* AmbiguouslyHuman: While most of the races possess clear animalistic or mythological traits - generally manifesting as tails, horns, antlers, animal ears, or glowing wings and halos - a couple of races don't show these at all. Most notable are the Aegir and Liberi. The former, who are based off sea creatures, don't possess any superficial traits of sea animals. Rather, the traits they do have are more subtle, like how the Abyssal Hunters are all [[spoiler:hybrids of Aegir and Seaborn]], or Whisperain is effectively immortal but loses her memories when she reverts to a younger form, much like certain species of jellyfish. The Liberi are generally based off various birds, but aside from some of them having hair that invokes the shape of feathers and clothes that invoke the shape of wings, they don't have any other avian features. There's also Scene, who is a Pilosa, a race based off sloths, and her animal trait comes out in the form of exaggerated slowness of speech and movement, and otherwise she looks entirely human.
94* AnachronicOrder:
95** Based on several conversations, many of the event stories actually happen in the future, implied to be in 1 year after Reunion's occupation of Chernobog (i.e. the main story). For example, in "Code of Brawl", there's a scene where Mostima and Bison walk into a graveyard and watch an old couple tend to the grave of their son Ah Faat, [[spoiler:who was Ch'en's informant that died in Chapter 5]], and the Rat King mentions [[spoiler:mobile cities crashing into each other, which is revealed in Chapter 7 as Talulah's true intention for the attack on both Chernobog and Lungmen]]. Despite this, [[GameplayAndStorySegregation nothing's stopping you from deploying the operators introduced in those events in normal story chapters]], [[ContinuitySnarl despite them not appearing in or being part of the plot back then]].
96** The additional EX or HX cutscenes in side story events don't necessarily happen in a chronological sequence after the event's plot. For example, in "Knights' Treasure", GT-EX-1 and GT-EX-3 are two separate prologues seen from the perspectives of different characters, while GT-HX-6 serves as an epilogue.
97** Based on story dialogue scenes, it's strongly suggested that Yeti Squadron's last stand to give the Phantom Crossbowmen time to escape Lungmen takes place immediately after Chapter 5. The Yeti Squad segments afterwards in Chapter 6 is HowWeGotHere.
98* AndYourRewardIsClothes: Certain events will award the player with alternate costumes for their operators, usually via point buy in the time-limited shop, or by maintaining a login streak. Unlike paid costumes sold in the Store for Originite Prime, which are confirmed to eventually rerun, these free outfits are mostly PermanentlyMissableContent. Hypergryph has amended this by slowly adding free costumes into the Contingency Contract store's permanent section so players can obtain them eventually with each CC season.
99* AndYourRewardIsInteriorDecorating: Furnitures can drop as mission rewards, but usually at a rare chance. Some challenges and nodes however, guarantee one furniture as the reward upon completion.
100* AnimalGenderBender: Some female operators are very obviously based on ''male'' specimens of their AnimalMotifs.
101** Conviction is very obviously based on a peacock, complete with colorful trains and blue feathers. Female peafowl, or pea''hens'', are much less colorful and don't have tail trains. Coupled with Conviction's AmbiguousGender in the provided bio, fans have theorized that the operator is a DudeLooksLikeALady.
102** Siege's impressively poofy hair takes cues from the mane of a male lion. It's worth noting that while lionesses usually don't have manes, there ''[[RealityIsUnrealistic have]]'' been instances of a few that do, however these are very rare, and their manes are much smaller and less prominent than a male's natural one.
103** Basically the case for all female Forte operators (e.g. Sideroca, Vulcan, etc...), who have big and prominent horns characteristic of bulls. Female bovids, or cows, have much smaller and shorter horns.
104* AnimalMotifs: Most Operators are associated with animals. This trait is evident for those with Elite 2 promotions, as their respective animals appear alongside them in their alternate artworks. A character's [[LittleBitBeastly race]] may also have something to do with it (and their animalistic traits can also physically manifest on their body); for example, the Lupo race, which is closely associated with wolves as seen in their Elite 2 artworks, have long, pointed hair that resemble a wolf's mane.
105* AnimalStereotypes: The Ancient races don't just share physical traits of their AnimalMotifs, some of them also behave like their real-life animal counterparts. Naturally, TruthInTelevision applies here as well:
106** In Greyy's archive file, it is noted that the race of Perros are known for their loyalty. This is a reference to their animal motif, the dogs, being known as man's best friend.
107** In Haze's assistant line, she mentions that Felines are known for being silent prowlers. Real-life cats are indeed masters of stealth when it comes to hunting smaller prey.
108** According to Plume, the Liberi (those who [[AnimalMotifs represent birds]]) have excellent eyesight that can even distinguish between droplets in a rainstorm. This references the sharp vision of eagles, hence the idiom "eagle-eyed".
109** From various profiles, the Forte (based on bovids) and the Ursus (based on bears) are noted to have immense strength. Bison can chase motorcycles on an ordinary bicycle and Rosa hauls up a harpoon siege engine as her weapon of choice. Even Istina, the resident bookworm among the Ursus, is noted to be fierce in fights, and Gummy hauls around a vault door as her shield.
110** Kuranta, who are based on horses, are said to be excellent sprinters and track athletes. Kazimierz, the country with the largest Kuranta population, has an entire culture based around knights, who were usually mounted on horses.
111* AnimeThemeSong: A curious example wherein the song being used in this style is provided by an ''American'' band; [[https://www.youtube.com/watch?v=Bq6IuZIJhuI "Monster"]] from Music/{{Starset}} has served as the game's vocal theme tune since its 2017 reveal, with late 2019 and 2020 material, most prominently the actual animated global launch trailer, shifting over to using [[https://www.youtube.com/watch?v=E2jFtRHjbPo "Unbecoming"]]. The song [[https://www.youtube.com/watch?v=pggN6f4h4So "INFECTED"]] was eventually released as part of the game's second anniversary.
112* AnInteriorDesignerIsYou: Dormitories can be customized with purchasable furniture. Higher-quality furniture provides better comfort rating, which in turn improves the morale recovery of operators. There are thematic sets for the furniture, but you're allowed to decorate the dorms however you like.
113* AntiAir: The Marksman Sniper archetype prioritize airborne enemies over their grounded counterparts. There are also special anti-drone tiles which boosts the damage of the unit standing on it against enemy drones. Some Guards can also do this, particularly the Lord Guard archetype, hitting airborne enemies with their {{Sword Beam}}s or equivalent, most prominently [=SilverAsh=], a highly-popular 6-star unit.
114* AntiFrustrationFeatures:
115** Unlike other gacha games, ''Arknights'' treat duplicates differently.
116*** You keep every operator you've recruited without an ArbitraryHeadcountLimit, therefore eliminating the need to discard unused ones or buy extra storage space in the cash shop; extras are turned into Tokens, which can be spent to improve a given operator's potentials. If said potentials are maxed out, those tokens can be turned into certificates instead, which can be spent in the shop to buy valuable materials or even ''other rare operators''. Actually accruing enough yellow certificates, or "Distinctions" as the game calls them, to exchange for 5- or 6-star operators can be a tall order, though, considering their rarity and the sheer amount needed.
117*** A 5-star operator costs 45 Distinctions to purchase, while a 6-star requires a staggering ''180''. Given that excess 4-star tokens convert to 1 Distinction each, that means you'd need to get a dupe 180 times if you're looking to buy that shiny 6-star from the shop. 5- or 6-star duplicates offer much more Distinctions a pop, but if you've managed to get that many of them in the first place then there's something wrong with either the game or ''you''.
118*** Indeed, for that matter there are no inventory limits, ''period''; the Depot stores as many kinds and as many individual materials as you feel the need to stockpile, with no need to spend premium currency to upgrade storage capacity. This is a ''marked'' difference from most Chinese hero-collector-style titles in particular (even ''Arknight''[='s=] publishing stablemate ''VideoGame/AzurLane'') as inventory restriction is a standard method of monetizing or forcing consumption of "free" currency. It makes, needless to say, for a significantly more pleasant experience compared to most other titles in ''AK''[='s=] field.
119** Skill upgrades are applied to all of an operator's abilities, even retroactively if they gain new ones via promotion. If an operator has a maximum of three skills and the player upgrades the first one to max level, the other two will also be maxed out when they are unlocked. This does not apply to skill mastery training at base, however, which must be done separately.
120** Quitting out of a level effectively refunds 95% of your spent Sanity, 100% if it's the first time you've played that map, which makes retrying much less punishing compared to similar games of this kind. The exceptions are Challenge levels, which only refund half of the entry fee upon quitting, as well as Annihilation maps, in which the Sanity return scales inversely proportional to the amount of enemies killed.
121** Failing to pull a 6-star in Headhunting can be daunting, but failing 50 times in a row will double the pull rate from 2 to 4%.
122*** From the 51st failure onwards, the pull rate will increase in increments of 2% each time, up to a max of 100% if you still haven't gotten any after a whopping ''98'' headhunts. Granted, this still requires you to attempt and fail an utterly absurd amount of times, but at least it does guarantee you'll get one in the end, unlike other gacha games that don't typically have such a "pity" feature. Moreover, this rate-up ''does not reset'' when a banner expires, and continues on through to the next banner you roll on; it only resets when you roll a 6-star (though not necessarily the one who is rate-up on the banner you are rolling on). There have been a few banners which track progress separately, however, those that feature operators that are only available for a limited time, such as Nian, [[spoiler:W]], Rosmontis, Dusk, Ash, [[spoiler:Skadi the Corrupting Heart]], Ch'en the Holungday, and more.
123*** While still on the topic of gacha, ''Arknights'' is lenient enough that most rate-up operators are simply reverted to having a default pull rate when their banner has ended, instead of being removed from the headhunting pool entirely like in ''VideoGame/FateGrandOrder'' or other games with similar summoning mechanics. This way, a player will always have the chance to recruit a given 6-star operator regardless of whether they're having a rate-up or not. The sole exceptions to this rule are, once again, the aforementioned limited operators, who can only be pulled while their respective banners are up.
124*** The introduction of Nian brought forth ''Arknights''' first "limited time" banner, in that it features a 6-star operator that can ''only'' be pulled from said banner, and will ''not'' be available to pull anywhere else. While this fact alone can make any Doctor wince, especially if they are on a tight Originium/Orundum budget, not helped by the fact that "limited time" banners have a "pity" system that is independent from all other standard Headhunting banners, there is a small silver lining. All "limited time" banners now account for ''70%'' of the odds when pulling a 6-star instead of the usual 50% seen in other banners, reducing the chance of an off-banner pull when obtaining a 6-star operator. Downplayed however, since these "limited" operators are always accompanied by another 6-star operator who aren't burdened with the dilemma of being only obtainable in their debut banner and are allowed to reappear in subsequent banners. In other words, pulling them instead of the "limited" operator can possibly screw your chances of obtaining the latter.
125*** Following some controversies regarding the limited time that Nian can be pulled, the next "limited time" banner (which features [[spoiler:W]]) introduced a Spark System. For every pull you perform on a "limited time" banner, you will earn one Recruitment Data Contract, and 300 Contracts can be exchanged for a featured 6-star operator. This example is downplayed in that actually acquiring 300 Contracts requires spending the equivalent of ''180,000'' Orundum on the "limited" banner, which is very unlikely to happen without significant whaling or several months' worth of unspent Orundum. Saving up Contracts for the next "limited time" banner is a no-go, since all Recruitment Data Contracts in your possession will be converted into Recruitment Data ''Models'' (which can be used to purchase materials) once the banner ends. Even then, if you end up ''needing'' to resort to spending those Contracts in order to acquire the limited rate-up operator[[note]]By that point, the pity system would have already been procced a couple times for ''70%'' odds of getting a rate-up operator[[/note]], then there is something wrong with either the game or ''you''.
126*** Every banner will guarantee you at least one 5-star operator within the first 10 rolls, and some of them are very powerful in their own right, so even if you fail to pull a 6-star, you won't be entirely shafted for spending your hard-earned Orundum on the gacha.
127*** That said, the Headhunt "pity" system can become a subversion if you end up pulling a 6-star operator ''that you already have'', which resets your pity rate even if that duplicate wasn't a featured one.
128*** The limited banner for the ''VideoGame/RainbowSixSiege'' crossover is much more generous than other limited banners since it's less likely that the banner will be re-run and to account for the fact that there are three limited operators (one 6-star and two 5-stars). The rate up for the limited operators is the same 50% increase of a normal banner, but you're guaranteed the limited 6-star Ash within 120 rolls (in practice, only 100 are needed since the event gives 20 free rolls), and the first time you recieve one of the limited 5-star operators, the next 5-star operator is guaranteed to be the other one.
129** Unlike most class-based games, ''Arknights'' '''will''' give you one operator of each type as {{Starter Mon}}s after you've completed the relevant tutorial missions, and some of them can be [[DiscOneNuke pretty damn strong]] for their rarity, ensuring that even players with the worst gacha luck under the sun have a fighting chance.
130** Even though the Sanity-restoring consumables expire, the main menu displays a timer on the bottom right that refers to the item(s) closest to their expiration date, as a form of a quick notification and to save the players from the hassle of checking every consumable one-by-one.
131** When assigning Operators to the Base, the UI automatically sorts the list so that those with the matching base skills are already in the leftmost side of the screen.
132** Due to its rarity, the Top Operator tag will never be crossed out if it appears and the player sets the recruitment timer to 9 hours. Be warned that recruiting for even 10 minutes less time than that will still have a chance to fail, however. The Senior Operator tag may still drop.
133** If the player has already maxed out every possible operator in their roster, the "feed XP" daily and weekly missions will be completed automatically once they become available.
134** Clues received from friends aren't counted in the {{cap}} of the Reception Room.
135** With the introduction of Etched Seals, the game's form of achievements, players who've had no luck with getting Indra and Vulcan before can earn and exchange Seals by undergoing recruitment a given number of times, the game essentially throwing them a massive bone for failing to pull these rare 5-stars so many times. Keep in mind, however, the stat tracker isn't retroactive, so recruitment tickets spent before Seals are introduced will not be counted.
136** The ballistae present in Annihilation 3 and in chapter 5 are not capable of a HerdHittingAttack, and only hit the first operator they 'meet', which means one can put operators who can tank that damage (i.e Saria, Cuora) or Medics in front of places they know the ballistae will spawn.
137** Considering their nature as [[{{LuckBasedMission}} Luck-Based Missions]], events centering around Integrated Strategies as a game mode usually have rather generous(ly-low) point milestone caps, so that clearing the reward board is not made impossible by failing repeatedly due to the game dealing you a bad hand upon starting a run.
138** Chip Stages give two different types of promotion chips for two different classes. Players can use the workshop to convert three of any chip to two of the other type they share a stage with (Caster and Sniper, Medic and Defender, Guard and Specialist, Vanguard and Supporter). Thus, if players need a specific class chip for an operator they're trying to promote, but keep getting the other class chip from that stage, they will eventually be able to get the chips they need by using the workshop to convert the chips into the ones they want no matter how bad their luck with the chip stages is.
139** Seasons of Contingency Contract will often go hand-in-hand with all material and chip missions being open, and since Contingency Contract missions do not use up sanity, one can quickly farm materials if they need a specific operator to be promoted.
140** Record Restoration, which was introduced alongside the launch of Contingency Contract season 'Wild Scales', allows newer players that missed previous events to just clear the Event missions in the Sidestory Record Archives, then claim a number of the event's exclusive rewards. The Restoration thus allows newbies to recruit welfare operators from past events, acquire event-exclusive furniture, and get the potential tokens needed to immediately promote their new welfare operators immediately to maximum potential.
141** The Contingency Contract system's two types of currency (CC Contracts and Gold Tokens) are both permanent, so you can keep contracts and tokens from a previous CC to spend in a future one. The permanent CC store also holds a collection of skins that players may have missed during past events, so they can be purchased using CC Contracts.
142** PTRS Proxy Annihilation Cards were introduced in the Stultifera Navis event so that if you have an Annihilation map you can run the auto play on, you can skip sitting through it. You're limited to getting one per day if you do most of the daily missions, but you can usually max out your Annihilation rewards with 6 of them.
143** In Herzenfolgen minigame in "Zwillingstrume im Herbst", if you choose wrong Arts Tune three times, the hint section will stop being vague and just outright say the correct Aspect and Desire combination. However, if you haven't unlocked the correct Aspect, you still need to trial-and-error your way to its combination.
144** "Zwillingstrume im Herbst" also introduces a major quality-of-life update: auto battles can now be chained up to 6 times in a row. This allows the player to avoid needing to babysit their device while the game plays for longer.
145* AntiGrinding: There's a "fatigue" mechanic in the RIIC Base. Operators have Morale meters that determine if their Base Skills are active. While operators can still work even if their Morale drops to 0, there's still a need to check the base once in a while and swap out fatigued/distressed operators if players want to maximize their passive benefits. A Daily Mission even encourages players to do this regularly by having at least 3 operators rest in the Dorms.
146* AntiHoarding:
147** Sanity potions have an expiration date, so even if players try to stockpile them, these will eventually disappear.
148** The Annihilation maps are quick and decent sources for farming Orundum, but players can only earn a limited amount per week using this method (the initial cap is 1200, but can be increased through milestone rewards past Annihilation 1), with the counter resetting on Mondays.
149* AntiPoopSocking: The game runs on a stamina system (called Sanity here) which regenerates at 1 Sanity per 6 minutes. Considering that daily grinding stages use up to 36 Sanity per run, expect a lot of waiting if you don't use Originite Prime or Sanity-restoring items. Initially there was a 10-recharge {{Cap}} per day, meaning however many Originite Prime you have, you can only use them to restore Sanity 10 times in a single day. The only other options are to somehow gain a new level (which instantly grants Sanity equal to your new cap, until the current level cap of 120) or consume the ever-so-rare Emergency Sanity potions which give you either 60 or 100 points each, so one has to hit a deadstop ''eventually''.
150** The CN version eventually removed the cap on Sanity restoration months after release, therefore averting this trope. The Global version followed suit after the release of the Code of Brawl event.
151* ApocalypseHow:
152** Recurring Class 0: Regional Scale. The Catastrophes that plague the world of Terra are often large enough to devastate entire cities (as seen with [[spoiler:Chernobog at the end of Chapter 1]]), but they are predictable to some degree, making it possible to evade imminent Catastrophes via Nomadic Cities or simply building population centers in areas with low risk of them occurring.
153** Another recurring Class 0: Regional Scale. The current appearance of the known world exists because the ''terra incognita'' is absolutely teeming with EldritchAbomination that will slaughter humanity should the nations that border them stop their constant battle. In the northern tundra, reality-shaping Collapsals are repelled by a combined bulwark of Sami, Ursus, and Yan. In the southern desert, blood-thirsty critters and ''more'' Collapsals are fended off by Sargon. In the southern sea, the Lovecraftian sea monsters devastated Iberia and barely pushed off from encroaching further inland. The sites of these battles are so hostile to life that even the flora are driven to madness.
154** Class 4: Planetary Scale, (multiple) Species Extinction. "Mizuki and Caerula Arbor" gives a glimpse of what happens if one of the aforementioned EldritchAbomination is allowed to win; the sea monsters has evolved so much and gained such power that they [[spoiler:''NoSell the northern demons' reality-shaping power'' and push the humanity to such a brink that there's only one city left existing in the world. And said city will eventually fall too, leaving only one person, beloved by the sea monsters' hive queen, to survive]].
155** Class X: Planetary Scale, Physical Annihilation. "Lonetrail" reveals [[spoiler:outside of the fake sky is a supermassive black hole the size of a nebula that Terra is orbiting that is gradually expanding at an uncomfortably rapid pace[[note]]Which retroactively reveals why Kal'tsit is fearful of the amount of time Terra has left and why the Seaborn have gone so off-course from their benign original programming as a terraforming organism when they believe the planet is lost and are trying to ''save'' as many lives as possible via assimilation[[/note]]. Thus, if something is not done soon to deal with the threat of the black hole or prepare to vacate Terra altogether, they will all perish to the black hole.]]
156* ApparentlyHumanMerfolk: Unlike most Ancient races, races with aquatic AnimalMotifs lack obvious physical features and appear almost entirely human. It raises the question of [[SuperNotDrowningSkills how they can breathe in their natural environment]] with such a biology, or their capacity for locomotion, since the human body plan wasn't meant for underwater life.
157* ArbitraryHeadcountLimit:
158** You can only have twelve members on a team, plus one from either your Friend List or a random stranger. Of that, most of the time only eight are allowed to be deployed at the same time in the field; the 1-star Robot operators, Nearl the Radiant Knight (with her second skill only), and Morgan (in Chapter 12 stages) are the exceptions to this rule because their innate Traits (skill in Nearl's case, second talent in Morgan's) allow them to bypass the deployment limit.
159** In addition, there are certain challenges in Contingency Contract and event missions that impose an even tighter limit on the team be restricting the number of Operators (usually six at minimum) you can bring to a map.
160** Maps that have Combat Terminals, such as Code of Brawl operatons or Flooded Seashore, provide a variant of this. While you can typically bring a standard-sized team into such maps, your initial deployment cap will be reduced, until you can activate special Command Terminals around the playing field, which will increase this limit to allow you to place down more operators. If a Command Terminal is destroyed, which it very likely will be, given the special targeting priorities of certain enemies on those maps, then you will take one strike to your total Defense seals, and its deployment slot will be permanently denied. Special challenge or CC versions of these maps may reduce or remove these Command Terminals altogether, thus restricting you to a small deployment limit while also allowing enemies more points of egress to access your base.
161** Summoner Supporters are unique in that they technically count as multiple Operators as one and their summons count for deployment limit but ''not'' team limit. The game explicitly allows for this loophole as it's balanced around the fact that summons are limited and their corresponding Operator usually must be retreated in order for their stock to refresh.
162* ArbitraryWeaponRange:
163** The fortress archetype has a strict minimum ranged attack range of three, meaning they cannot target enemies within the two rows of tiles directly in front of them. In layman's terms, they cannot hit anything within the range of a Splash Caster's attack range. However, unlike Besieger Snipers, they're not completely helpless if an enemy gets blocked, since they can still melee attack just like all other Defenders.
164** Besiegers have a strict minimum range of two, meaning they cannot target enemies within the three tiles directly in front of them. In layman's terms, they cannot hit anything within the range of Executor's trait.
165* AristocratsAreEvil: A recurring theme in the game, as it's indicated that the nobility of several countries in Terra are willing to screw over both Infected and non-Infected alike in their political games or simply because they see the lower classes as theirs to play with and dispose of as they see fit. There are good-natured nobles, like Rosa and House Nearl, but a lot of them have BlueAndOrangeMorality because of their sheltered life from the smallfolks that nevertheless causes them harm.
166* ArmorPiercingAttack: Arts Damage ignores the DEF of the target (instead mitigated by their RES). Handy for dealing with heavily armored units, extremely annoying when magic-resistant enemy Casters arrive on the scene. Certain Operators have skills that allow them to pierce a certain amount of DEF or RES, while a rare fewer still have skills that deal True/Pure damage, which ignores both DEF and RES alongside most damage reductions.
167* ArrangeMode:
168** This game specifically calls it "Challenge Mode". These challenges are much more difficult versions of the maps that increase enemy stats by roughly 10% and add gimmicks that either handicap some of the player's mechanics, [[CharacterSelectForcing ban a certain Operator Class]], or buff certain stats of the enemies even further. Completing challenges awards you with additional Originite Primes.
169** The Contingency Contract event can be shortly described as "create your own Arrange Mode". The event has a pool of maps and modifiers that can be freely mix-and-matched to adjust the difficulty to your squad, and rewards players for clearing stages after making them as hard as (viably) possible.
170* ArtEvolution:
171** The game initially had the Reunion icon to represent the total number of enemies on the map counter. It was replaced with a generic crosshair overlaying person icon to reflect how Rhodes Island fights loads of enemies who aren't in Reunion outside of the first main StoryArc.
172** Newer sprites have significantly better and more complex animation compared to the launch operators. This even works when the old operators have new skin later on; compare Exusiai's Wild Operation skin (which has the same skeleton as her default) and her Midnight Delivery skin.
173* ArtificialStupidity: The Auto mode AI (recognized in a game tutorial as PRTS, funnily enough).
174** It typically handles automatic runs very well, and is capable of memorizing which skills you've used and at what points. But, should you promote any of the units in a given lineup to Elite 1, without also upgrading their potentials to refund the added DP cost, the AI will become confused as it tries to slot those same operators onto the map, but fails due to them costing way more than they used to. It's incredibly rigid, and should the DP disparity becomes too great, it will ''give up entirely'', thus abandoning your lineup to their fate unless you assume manual command. This is especially problematic in Annihilation mode and any other challenge nodes that prevent DP from naturally regenerating. Previous, easier stages can become impossible to win on Auto if this is the case. Thus, it's now a common practice to renew your runs on a previously-cleared stage every once in a while, especially after you've promoted somebody.
175** While on that note, it is simply incapable of accounting for stat changes in your units, especially if you've been busy enhancing their stats via either XP feeding or Trust building. In a rare instance of too much of a good thing becoming bad, if your operators are way more powerful than the Auto mode AI "remembers", they will begin killing off mooks much more quickly, which triggers the next waves to come earlier than they used to, while your deployment order remains the same, which can actually mess with your chance of getting a perfect score when crucial units you wanted deployed at the right time to block enemy waves, aren't.
176* ArtisticLicenseCars: The official EP for Jessica, ''[[https://www.youtube.com/watch?v=g_ldg-_bjp4 Water Quench]]'' is set in, what is implied to be, Davistown. Even though Columbia is supposed to be Terra's version of the United States (with Davistown being one of them), the taxis glimpsed at the start of the EP reveals that the steering wheel is on the right instead of left. RHD vehicles would make a lot of sense if the EP is set on Lungmen, Terra's version of Hong Kong.
177* ArtisticLicensePhysics: The concept of [[BaseOnWheels Mobile Cities]] is not a new thing and admittedly it does sound really cool. However, it also flies in the face of the Main/SquareCubeLaw, where having an entire city running on wheels all over the place somehow isn't affected by gravity or the density of the soil underneath it, without even mentioning the absurd lift and suspensions needed to even keep it above-ground to begin with. "Lonetrail" implies that the mobile cities are built using [[{{Precursors}} Progenitor]] technology that includes artificial gravity.
178* AscendedMeme:
179** The fans have taken a shine on the jetpack soldier that falls into a {{Bottomless Pit|s}} in the Annihilation map, calling him "Kevin". In Ethan's [[ADayInTheLimelight Operator Record]], said jetpack soldier survives the fall and his name is indeed Kevin.
180** During CN livestreams, the main writer of the game Lowlight tends to rig the livestream roulette wheel by putting "All" on the reward to increase the amount of materials the players will receive, something that the playerbase is always waiting for. During CN 3rd Anniversary livestream, the "All" roulette is set to be a base furniture, and its description says that "wherever the needle stops, there exists happiness."
181** In Chapter 10, the "candy plant" that Rhodes' guide to infiltrate Londinium used to own before the Sarkaz invasion, turns out to be manufacturing Loxic Kohl, one of the upgrade materials. The fanbase already called the Kohl "candy" because of its appearance, long before the chapter dropped.
182** Projekt Red's fondness for fluffy tails was played up by the fans; when she finally got her module, a fluffball accessory was added as a part of the kit as her "surrogate" for when she doesn't have easy access to other's fluffy tails.
183** Cement quickly got associated with the meme "Das Conk Creet Baybee!" when she was first introduced to the CN server and Global players saw her for the first time. During the global release of Episode 12, with Cement making her Global debut, her Trust Tap voiced line in the English dub directly references the meme as she says this outright about her shield.
184* ATasteOfPower:
185** 6-7 gives players a chance to field a full team of Elite 2 operators, which most players may not have yet the first time they play Chapter 6.
186** "Integrated Strategy" sometimes will sometimes drops a special recruitment that cost no Hope to recruit and, should they get promoted to Elite 2, will come with max level and max mastery on all of their skills, which most likely a lot stronger than the version that you have. Starting from "Phantom and Crimson Solitaire", there exists the monthly squad; a preset-initial-three squad that you can bring along, that also has this maxed out stats quirk.
187* AttackAttackAttack: Reunion forces and all other opposing enemy factions have no concept of retreat. They will steadfastly charge into your defense lines and fight to the death, regardless of their remaining health or the power disparity between your operators and their own forces.
188* AwesomeButImpractical:
189** Slightly downplayed with the 6-star operators. They are typically extremely powerful, thanks to their bevy of diverse skills and two Talents, but they also cost a hefty amount of top grade materials and LMD to raise and promote, which you ''have'' to do, as they will only reach full potential at Elite 2. Grinding for a single Elite 2 promotion can take up to a week with the AntiPoopSocking measure in place, depending on your luck with random material drops. If you do not enjoy constantly dipping your economy back into the red with the press of a button, then these guys aren't very good for you. That said, they're often worth the investment, as many 6-star operators back up their reputation with their sheer power and utility, and if you want to tackle difficult, high-level content with ease (ie. high risk Contigency Contract), then they are a huge boon.
190** A more straightforward example would be the 5-star Operators. They are only slightly less expensive than 6-stars to upgrade to Elite 2 (requiring Dualchips to promote and a significant amount of high grade materials), and some of them are also considered to be outclassed by their 4-star counterparts by virtue of being BoringButPractical.
191** Orundum trade orders. While free Orundum is a great thing, it's generally an inefficient use of the time and Sanity spent grinding for the LMD and materials required to perform those trades in the first place.
192* BalanceBuff: The concept of the Module System is to provide additional benefits to Operators that can significantly improve their performance, particularly towards less stellar performing ones. Unlocking Modules in the first place requires the Operator to be at Elite 2, reach a certain level and Trust gauge, fulfill specific conditions from clearing stages, and lastly, Module Blocks and materials.
193* BattleAura: When an Operator has activated an in-game skill, they would usually be emitting a color-coded aura.
194* BattleButler:
195** The butler serving under Bison and Eurill Pides initially doesn't seem like much at the start of Code of Brawl, but [[spoiler:it's revealed at the end that he's been trailing Bison as a far-range sniper to provide either support or trouble for Bison, depending on Eurill's orders]].
196** [=SilverAsh=]'s retainers, especially Matterhorn in particular, have a lot of domestic skills besides fighting.
197** Schwarz is not only Ceylon's sniper bodyguard, she also makes Ceylon's favorite tea. However, as shown in her Operator Record, this is bad for Schwarz. Being sold as a slave when she was a child and spending most of her life as a bodyguard have beaten a servant mentality into her even though the Doykos don't want that. [[spoiler:The reason Herman sent her to Rhodes Island is that she could act not as the Doykos' servant, but as [[HappilyAdopted a Doykos daughter]] like Ceylon. There's still a long way to go for Schwarz to get there because she's too used to adhering to this trope.]]
198* BeachEpisode: The Heart of Surging Flame, Gavial the Great Chief Returns (to an extent in one cutscene), Dossoles Holiday, and Ideal City event serves as one.
199* BeautyIsNeverTarnished: Zigzagged. On the one hand, many operators are still really pretty despite the unpleasant effects of Oripathy being visible on their bodies, even when wearing swimsuits. On the other hand, several operators wear eyepatches or other such concealing accessories because of severe damage to their bodies.
200** Amiya's oripathy lesions are visible on the backs of her hands, but she keeps them covered up by wearing long-sleeved tops or gloves, and manages to conceal them during her siesta beach outing during "A Heart of Surging Flame". In the Rhodes Kitchen manga, she shows another Infected lady her own oripathy lesions by rolling up her sleeves.
201** Sussurro, despite having a visible patch of originium crystals on her chest in her swimsuit skin, generally has it looking like a striking flower-shaped crystal mark instead of an unsightly mess.
202** Suzuran's oripathy lesions are only visible on her upper arm in her default skin, as her other outfits cover it up.
203** Santella has her hair combed over her eye because her visible signs of Oripathy are there, due to an Ursus soldier stabbing her in the face with an Originium shard.
204** Mudrock, despite having been infected for quite a while, does not have particularly disfiguring amounts of originium lesions, as the few that ''are'' visible in her Silent Night skin are minimal, with a small patch on her midriff and one on her upper arm, artfully concealed by the gauze-like cloth draped over her arms.
205** Cliffheart is able to conceal the marks of Oripathy on her thigh by choosing her fashion accessories carefully to disguise the originium crystals as part of her jewelry.
206** Lappland's default clothes show off the originium lesions covering her midriff and legs, but it doesn't mar her rough beauty much, and said signs of oripathy are concealed in her Epoque skin, which represents the Saluzzo Famiglia clothing she wore during "Il Siracusano".
207** In "Lingering Echoes", [[spoiler:Kreide's face ends up covered in originium crystals after his oripathy is accelerated by the side effects of the byproducts of the Witch King's Arts that were used on him in an experiment during a musical performance, and he ends up looking like a mess when Ebenholz carries him to his final rest]]. On the other hand, Ebenholz shows no visible indications of the oripathy he contracted at the end of Lingering Echoes.
208** Eyjafalla's Oripathy does nothing to mar her physical beauty in any way, as she has no surface signs of her infection visible in her beachwear skin. However, this is due to her infection being entirely internal and having a negative impact on her vision and hearing.
209* BeastMan: Operators of various races, if they are not explicitly humanoid like the Sankta, run the gamut between LittleBitBeastly (such as the Feline and Vulpo) and full-on bipedal animal people (such as the [[LizardFolk lizard-like Savra]]).
210* BeefGate: The game ''very'' quickly introduces intentional artificial difficulty to entice players into grinding Supply missions and level their operators.
211** Starting from about the final third of Chapter 2, enemy difficulty will be around Elite 1 level-wise, with increments of 10 levels per two or three nodes. Unless you're particularly diligent about keeping your teams up to date, you won't get far, and to put an even bigger crimp on your operator progress, the Supply nodes are also level-gated very early on, forcing you to stomp around the first two to three levels for some time.
212** The entire point behind ''Contingency Contract'' is to provide a gigantic Beef Gate that will make even the most well-prepared Doctors wince. Due to the enemy buffs put in place by the Contingency risks, players attempting a high-risk run will suddenly find themselves fighting enemies several dozen levels above their lineup strength-wise. Enemies that were once pushovers suddenly gain double health and massively ramped-up ATK and DEF, allowing them to steamroll even Elite 2 operators with ease. Unless your operators are significantly over-leveled, don't expect them to last very long. To make matters worse, the high-risk class restrictions pretty much require you to use gimmick operators that you normally wouldn't, putting even more pressure on players who came unprepared since they will now have to spend even more resources leveling them up.
213* BeehiveBarrier: Operators with the "DEF Up" skill or similar skills can deploy a personal shield with blue hexagonal patterns all around.
214* BigStormEpisode: The latter half of Chapter 1, specifically from Operation 1-7 onwards has a tornado brewing up in the clouds, with lightning strikes all around its epicenter. It soon demonstrates its devastation with debris flying everywhere as the Rhodes Island rescue team tries to take cover for the meantime.
215* BilingualBonus:
216** There's quite a bit of Russian littered throughout the game from Operators' callsigns to text on Kal'tsit's armband to vocal music from chapter 7, which makes sense given how Ursus is meant as an analogue to Russia and serves as a key nation to current events in Terra.
217** The English translation tends to add a lot of foreign phrases in the characters' dialogue based on their FantasyCounterpartCulture hometown; Italian for the Siracusan, Cantonese for the Lungmenite, or Nahuatl for the Acahualla Sargonian.
218* BittersweetEnding:
219** "Twilight of Wolumonde" ends with Severin dying, the rioters being exiled from Wolumonde, the murderer is technically never found, and the city is in shamble - but Folinic and Mudrock make peace with each other's vengeance and the two-third citizens who stay in Wolumonde will survive. The extra scene and Mudrock's profile show that the ending is more bitter than sweet; [[spoiler:the true culprit is Severin's son who faked his death, and he escaped punishment for the damage the incident caused by committing suicide. Wolumonde is deemed too damaged by the riot that the city's districts are to be divided among other mobile cities, and Wolumonde citizens are put under surveillance to ensure that there will be no more riot from them. Mudrock, her squad, and the exiled Wolumonde encountered the Witch-King cult as they're on the run from Leithania's authority and a lot of them died in the fight. They only find repose when they met Logos and accepted Rhodes Island's invitation]].
220** "Children of Ursus" makes it clear that while Chernobog survivors will live on with various form of PTSD, but they'll slowly heal because of their friendship with each other and their life in Rhodes Island.
221** The conclusion of Reunion incident in Chernobog and Lungmen; [[spoiler:Chernobog's collision with Lungmen is averted. A lot of people died, but a war between Ursus and Yen, which undoubtedly will kill even more people than that, is averted. Wei realizes his folly after the Rat King negates his slaughter to the slum-dwellers, swears to be a better Chief of Lungmen, and mends his relationship with Ch'en. Talulah survived and freed from Kashchey's possession, but she might need to spend her entire life to atone for her crimes. The heroes' allies in Ursus uncover the conspiracy to provoke war, exposing the bill to persecute the Infected even further as an opportunistic power-grabbing move, and send it to a forgotten dustbin as the Emperor works to reform his nation]]. As the event stories show, Rhodes Island continue to sail on the blighted world of Terra to save more people in an almost impossible mission, but they have allies to depend on to keep pressing forward.
222** The "Price of Peace" ending of "Mizuki & Caerula Arbor". [[spoiler:Mizuki performs a HeroicSacrifice to defeat Ishar'mla and pacify We Many, permanently ending the Seaborn threat. However, Terra remains a CrapsackWorld, and in addition to Mizuki's sacrifice, all of the Abyssal Hunters are dead except for Skadi, but she goes into a self-imposed exile as she is unable to cope with her restored memories.]]
223* BizarreHumanBiology:
224** Operators, if they're not full-blown LizardFolk (i.e. the Savra), do sometimes have human ears in addition to their animal ones, if they have any, [[https://www.arknights.global/news/110 according to]] WordOfGod. They can apparently hear from both pairs just fine, which is why many operators appear to wear headsets or headphones where ears are located on a human instead of their own, visible ones.
225** The Sankta is said to gain their halo when they say their first word and gain their wings after they have their 'guardian gun' and develop their Arts with it. Otherwise, a newborn Sankta looks like a normal human baby.
226* BizarreSexualDimorphism: Due to the sheer amount of artists Hypergryph hired on board to design characters, each with their own {{Creator Thumbprint}}s, operators from the same species and even ''gender'' can look vastly different from one another. There have been zero explanations so far on how and why such drastic contrasts exist within the game world.
227** The most prominent example is likely [=KuroBlood=], who's responsible for illustrating Waai Fu, Aak, and Hung, respectively, who look more in line with the furry community and ''nothing'' like their fellow Felines or Perros. Compare Waai Fu and Swire, who are both female Felines based on tigers, the difference is night and day. It is possible that these characters are members of subspecies of these races, similar to the four Savra operators presently in the game (Asbestos, Ethan, Rangers, and 12F), whom you likely wouldn't know are of the same species at first glance.
228*** Speaking of [=KuroBlood=], the easiest and most egregious example to spot by far would be Wei Yenwu and his niece, Ch'en. Despite being related by blood and are of the same species (Lung), Wei looks like a bipedal Chinese dragon in a robe, while Ch'en looks like, well, ''[[ShapedLikeItself Ch'en]]''. It's been speculated that female Lung, or their female offsprings, naturally have a distinctly-human appearance with horns and a tail, since Ch'en's half-sister, [[spoiler:Talulah]], also shares that description.
229** On one hand, we have Magallan, who's an anthropomorphic penguin; on the other, there's the Emperor, who's literally just an emperor penguin in human clothing. [[spoiler:However, it's eventually revealed that Emperor is not an Ancient, but a Beast Lord, which is a race of immortal, superpowered intelligent animals.]]
230** The Rat King and Lin Yühsia are father and daughter, yet the former is entirely rat-like in appearance with a rodent snout and legs, while the latter appears just human with rat ears and a tail. Clearly Yühsia got her looks mostly from her mother's side.
231** The Archosauria as a whole has this going on, as demonstrated during "Gavial: The Great Chief Returns". Male Archosauria look like anthropomorphic crocodiles, [[https://i.imgur.com/bvIJELj.jpg while their female counterparts appear however Gavial does]], though "Il Siracusano" would later reveal there are human-like male Archosauria.
232* BlackMarket:
233** These exist in Terra. As explained by Nearl in the "Knights' Treasure" event, the eponymous treasures also contain weapons or equipment that are sold to black markets in Columbia at high prices.
234** The Scar Market is a Kazdel-based black market that sells the plunders and head bounties from Sarkaz Mercenaries's raids. The Sankta's guardian guns are highly prized there.
235* BlandNameProduct:
236** Raythean is an obvious riff on the real-life defense contractor [[https://en.wikipedia.org/wiki/Raytheon Raytheon]]. They manufacture combat equipment, such as Savage's hammer and Vulcan's shield, as well as drones of various types, including the models that Closure kitbashed into Lancet-2 and Castle-3.
237** In the "Obsidian Festival" event, there is an in-universe version of Instagram called "Obsgram".
238* BlessedWithSuck: In Integrated Strategies mode, some Collectibles can cause problems when facing certain Operations. For instance, ''Sui's Wrath'' deals damage to a random enemy whenever an Operator is deployed, which is absolutely deadly if you ''don't'' want to wake up the sleeping enemies, such as in ''Ubi Bonna Somnia'' or '''Joy' from a Box'' Operations. Inversely, some Rejections can [[CursedWithAwesome actually be beneficial]] given the correct conditions. ''Hematopoietic Inhibition'' counts as a damage instance, and having the ''Unleashings'' Collectible means free SP for your Operators. ''Concentration Disorder'' on the right Operators mean less micromanagement, and ''Metastatic Aberration'' makes fast-redeploy Operators to become even more spammable.
239* BlindedByTheLight: When W gets herself surrounded by Rhodes Island and the L.G.D. in Operation 3-5, she still makes a quick escape by tossing a flashbang to distract and stun everyone.
240* BlindIdiotTranslation:
241** Downplayed. While the localization team has done a commendable job of translating the game's content to other languages, especially English, there still exists a couple of mistakes that leave something to be desired. The most glaring example is the "Illustrator" section for each character, which they rendered as "Painter" instead, which is... less than strictly accurate. They are properly called Illustrators in a later update.
242** The most consistent mistake that the English translator makes is the codenames. This is likely because of how the character names, when rendered in ''kanji/hanzi'', can be read in many diferent ways despite still sharing the same general meaning, and the translators just took the closest literal meaning of the words and ran with it. Sometimes, the mistranslation happens in the same paragraph.
243--->'''TW-EX-8's map description before an update''': ''Mudstone'' (sic) got lost the first time setting foot in Wolumonde. But by the end of the day, ''Mudrock'' had taken an extra lap around the town.
244** Mansfield Break marked the start of...interesting translations. First off, Mayer's Meeboos were addressed as 'Mibo' by Muelsyse, and the Flame Demon Incident suddenly became the 'Diαbolic Crisis'. Furthermore, as of late, certain race names have been butched, especially Pythia (addressed as Phydia in-story) and Rebbah (addressed as 'Reproba' in Beanstalk's file while she's the same race as Spot).
245** Certain skin names are also rather weird, such as 'Moon Catastrborn' and 'Frlibe on the Palace'. There's also 'the mag' (yes, in AllLowercaseLetters like that) while it's supposed to be 'the mage'.
246** One message from Amiya has her talk about a 'cake embryo', referring to a yet undecorated cake. This is a BlindIdiotTranslation because the hanzi used for it literally translate to 'cake embryo' but indicate 'cake without cream'.
247* BloodlessCarnage: Nobody bleeds in this game, regardless of whether they're being slashed by a {{BFS}}, shot at by a gun with MoreDakka, blown up with explosives, or smashed with hammers the size of household refrigerators. There are a few [=CGs=] that do show characters bleeding, though they aren't accurately represented by the usual state of gameplay.
248* BookEnds:
249** "Darknights' Memoir" starts and ends with the death of a Sarkaz mercernary and someone else taking up their weapon in their place. [[spoiler:W picks up the old W's gear at the start, showing her origins and assuming the role the previous W filled. At the end, W encounters two Ursus children in Chernobog who have picked up a Sarkaz sword with W deciding to tell them about the Sarkaz tradition the boy has unwittingly been initiated into.]]
250** Reunion in the main story is introduced with a group shot of the leaders, the sinister red-eyed silhouettes standing in the ruined wreckage of Chernobog, showing them as evil and vengeful rioters. [[spoiler:The main story ends with the shot of Reunion before their invasion on Chernobog, sitting shoulder-to-shoulder around campfires as a band of brothers, talking about hope for the future.]]
251* BoringButPractical:
252** The uber-common 3-star and starter 2-star operatives have nothing fancy about them, and in the case of the former can only be promoted up to Elite 1, but they make up for these shortcomings by being incredibly cheap and easy to raise. Provided they are fed well, these low-cost operatives can handily clear high difficulty Supply skirmishes, or hold their own in Annihilation with relative ease, despite their decided lack of flair or even proper skills as in the case of 2-stars. That being said, they certainly are ''not'' viable during harder challenges, or maps that require a minimum baseline level far above their cap, although there ''are'' a few 3-stars who are capable of punching above their weight to a surprising degree. Additionally, 3-stars are absolutely invaluable in the early stages of Integrated Strategies, thanks to their free recruitment cost.
253** Operators of a 1-star rarity consists of only Robots, such as Lancet-2 and Castle-3. They have very low stats, very low level cap, very long redeployment time, and can't be promoted. But they ignore the ArbitraryHeadcountLimit, are very cheap to deploy, and have unique talents that may save your operators in a pinch, such as Lancet-2 healing everyone for up to 500 HP when she's deployed, Castle-3 buffing everyone's attack and defense for up to 20 seconds, and [=THRM-EX=] serving as a helidropping ActionBomb that can deal massive physical damage and Fragile to all enemies in range.
254** Roadblocks. While their utility is to simply block off pathways in exchange for some deployment costs, they are useful in forcing the enemies to change direction. Deploying roadblocks near enemies will also make them turn around from the dead end, leaving them vulnerable for a longer time against your ranged operators (as opposed to deploying roadblocks when the enemies are still far).
255** When grinding for growth materials, it's often better to grind for the material's ingredients so you can craft it rather than grinding for the material directly. Because the ingredients or other lower tier materials have a higher drop rate, you'll likely spend less sanity to get the material in question.
256** Clearing a level using brute force instead of fancy micromanagement utilizing Specialists and Summoners. Rarely fails, and satisfying to see the big damages popping up.
257* BossRush:
258** The last level of the "Vigilo" event is a four-wave boss fight, with each boss also summoning {{Mooks}} that thankfully automatically retreat when their associated boss dies. In order, you fight Faust, "The Big Ugly Thing" from Gavial the Great Chief Returns, [[DualBoss the Corrupted and Withered Knights]] from Maria Nearl, and Patriot.
259** The entire ''Trials for Navigator'' mode is based around this, featuring multi-part maps that force you to fight several bosses back-to-back, with the map changing each time you successfully take one out.
260* BottomlessPits: Present on certain maps. Any enemy unit that is pushed/pulled into one is instantly killed, making certain Specialists, such as Push Strokers and Hookmasters, extremely effective on these maps.
261* {{Bowdlerise}}: At the beginning of "Necessary Solutions", Ch'en and Swire argue at each other when Swire criticizes Ch'en for not doing her job when the L.G.D. headquarters are being occupied by Reunion, which Ch'en rebukes as per her aloof and dismissive nature. In the Chinese and Japanese versions of the game, the argument involves both of them saying certain "exotic" words, hence the aforementioned ClusterBleepBomb or censorship using the phrase "*龙门粗口*".
262* BraggingRightsReward:
263** Medals serve no purpose other than to be a trophy in your collection, and although most of them are obtained just by playing through the game, some of them need you to go out of your way to get them or perform exceptionally difficult tasks. Notable examples include the trimmed medals for ''Contingency Contract'' (completing a Risk 18+ run in the first week), and the secret medals of ''Stationary Security Service'' (complete a whole tower without losing once).
264** The difficulty system in ''Integrated Strategies'', colloquially known as "ascension", only actually needs you to go partway through the fifteen difficulty levels (7 in ''Mizuki & Caerula Arbor'', 10 in ''Expeditioner's Joklumarkar'') before the game hands over a trimmed Medal and stops increasing the difficulty-based score multiplier, leaving there no tangible benefit for going higher. Everything after that is merely for personal satisfaction, and prior to ''Expeditioner's Joklumarkar'' changing the "ending clear" icons on squads depending on how high of a difficulty you cleared them on (and even then, it caps at 12), the game didn't even have a way of indicating your achievement.
265* BribingYourWayToVictory: Somewhat downplayed.
266** Originite Prime can be converted into Orundum, which feeds the headhunting gacha, but has a conversion rate so terrible[[note]]1 Originite Prime converts to 180 Orundum, while a single pull costs 600[[/note]] you'd need to purchase a ''lot'' of them just to do a 10x pull, generally leaving it better used to purchase skins. Other than that, their use is limited to restoring Sanity, which used to be limited to 10 times until the Code of Brawl event update removed the limit.
267** There ''are'' some starter packs that you can shell out real money for, in exchange for sizable amounts of resources, but they can only be purchased once, and the stuff they give you are easily consumed. Not to mention that the given resources can mostly be easily farmed for normally anyway. They don't give you any of the fancy materials that you'd actually need down the line.
268** There are the Monthly Headhunting packs that offer huge caches of Originite Prime and ''two'' 10x headhunting attempts...
269** And lastly the Monthly Card which can be bought with real money for a daily supply of Orundums and Sanity Packs within a month, the most money-efficient booster pack for a Doctor with limited funds.
270** From ''Under Tides'' onwards, a number of booster packs that can be bought for real money were introduced:
271*** A Select Operator ticket that lets you instantly recruit one of the 6-star operators offered by it.
272*** An Instant Elite 2 Promotion ticket that allows you to immediately promote a 5-star operator without needing the chips, materials, or LMD.
273*** A number of Second Anniversary Packs that were released in the run-up to ''Dossoles Holiday'' allow you to shell out immediately for a stack of Originite Primes, a pile of LMD, and a selection of Headhunting tickets, materials, and/or chips for promotions.
274* BrutalBonusLevel:
275** The "Extreme Mode" stages that begin in Episode 5, denoted by the "H" in front of their name (eg. H5-4). These maps feature top-of-the-line enemies configured in even tougher formations or map layouts, and also bring back stronger versions of the chapter bosses for you to fight; from Episode 10 and onwards, on top of inheriting the passive 20% enemy stat buff of the Adverse Environment, they often have you refight the chapter boss ''multiple times'' with entirely new or enhanced abilities each time. Beating them awards you with an extra Originite Prime each and a Medal if you clear all of them in a Chapter, with the later chapters also offering more rewards and potentials for the chapter welfare up for grabs.
276** Most event stages will have EX maps that unlock some time after the event begins. These maps often have Elite versions of the enemies fought in the event, more complex maps, tough Challenge Mode variants, and a stronger rematch with the event's boss if it had one. Some events have an additional MO level which acts as a mini-MarathonLevel, or S stages that have even more difficulty modifiers or restrictions.
277* BulletTime: The gameplay is slowed down for a while whenever you tap on your Operators to view their stats or skills whenever you're in a mission.
278* BusmansHoliday: A couple of sidestory events happened when the Doctor took vacation leave and went places. Other characters are also affected.
279** Heart of Surging Flame happened when the Doctor was at Siesta to enjoy the Obsidian Festival along with several other Rhodes Operators.
280** Dossoles Holiday happened to Ch'en, Lin Yushia, Hoshiguma, Swire, Sideroca, Sussuro, Eyjafalla, and Projekt Red. Their holidays in Dossoles got interrupted by the various incidents surrounding the Warrior Championship. While Ch'en got an actual vacation during her time in Siesta, no such luck for her in Dossoles as she spends a majority of her time running around busting crime in some form and even ropes Hoshiguma and Swire into giving lectures to the local police.
281** Break the Ice happened when Silverash first invited the Doctor to visit Kjerag, and the original intent was to enjoy the trip as a vacation.
282* ButThouMust: Regardless of what dialogue tree option you choose, they don't have any direct effects on the overall story, nor the succeeding gameplay segments. The end of Chapter 8 hints that this may not be the case for future content.
283** Lone Trail sees the Doctor get so angered at Loken deliberately forcing Rosmontis to retrieve her memories of her painful past, that the player cannot stop them from physically hitting Loken and knocking the wind out of his sails - the three choices only give you the option to choose the form of violence.
284[[/folder]]
285[[folder: C-D]]
286* CallARabbitASmeerp: While the setting has a lot of fantastical animals like the metal crabs, there's also a lot of mundane animals similar to the real world. However, because Terra is populated by LittleBitBeastly Ancients, non-sapient animals tend to be called "beasts" while the real life animal names are used as the races of the Ancients. In ''Operation Originum Dust'', a Perro doctor is legitimately confused when one of the Rainbow Six Operators mentions a "dog," having no idea what that is even though, as a Perro, he has dog ears and a dog tail.
287** The bear people of Ursus Empire use the warbeasts, which are pretty much ordinary bears, as their attack animals.
288** Fowlbeasts are implied to encompass all types of fowl, as the cooking manhua spinoff shows they are used as chicken meat, but the Feeding Station furniture also implies there's a type that can fly.
289** Cystybeasts are the equivalent of any dairy producing livestock as they produce milk to be used for cooking.
290** Burdenbeasts are a HorseOfADifferentColor not shown on-screen as they are used as mounts for some characters.
291** Stockbeasts are some kind of livestock, it is not clear which animal they're meant to correspond to.
292** Sandbeasts shown in the cooking manhua visually resemble pigs, though they likely have different biological features from actual pigs as they are stated to be found in the desert.
293** Musbeasts are implied to be some kind of small rodent-like animal.
294** In an odd subversion, wolves are just called wolves, though this seems to be due to the influence of the Signori dei Lupo, who are literal wolf gods that manifest as wolves.
295* {{Cap}}: So many.
296** The initial player level cap during the initial releases of the game for both CN and Global servers is 100. The level cap for the CN server was raised to 120 in an update alongside the addition of Episode 6; the Global servers would later follow suit coinciding with the release of the Code of Brawl event on May 27, 2020.
297** The maximum character level is tied to the operator's rarity. One and two-star operators have the lowest level cap of 30, while six-stars have one so high due to promotions (Elite 2, Level 90) that it qualifies as an AbsurdlyHighLevelCap.
298** Your Sanity count is limited by your level, and will only regenerate up to this limit by itself without the use of potions or Originite Prime. Gaining new levels will steadily increase this cap by 1 point each. Though, as you reach the higher levels, these cap increases will become more spread-out, resulting in only one or two point differences every ten levels or so. It currently caps out at 135 Sanity, which is unlikely to change unless the maximum player level cap is increased beyond 120.
299** As an AntiPoopSocking measure, you could only spend Originite Prime to restore Sanity ten times per day, before the release of Code of Brawl removed that cap. Any more than that would require either Sanity potions, or gaining a new level. Unless you were playing the CN build in which case there never was any cap.
300** As an AntiHoarding measure, you can only farm a limited amount of Originium per week in the Annihilation maps. The cap starts off at 1200 Originium, but this can be increased further by completing certain Annihilation quests.
301** When in battle, your Deployment Points cap at 99 in most cases. The only exceptions are Annihilation maps, which is increased up to 999 to compensate for the lack of naturally regenerating SP. However, an operator's DP cost cannot exceed 99, regardless of level modifiers. This is most easily seen when fielding Splash or Blast Casters in maps that triple their original cost. Do keep in mind that 99DP translates into a ''full'' meter that has reached its own respective cap.
302** The maximum number of Drones in the RIIC base are capped depending on how many rooms have been cleaned, up to a hard cap of 200.
303** When initially built, dorms are limited to 1000 maximum comfort, which increases by increments of 1000 every time they are upgraded, up to a hard cap of 5000.
304** The Reception Room's Clue limit of 10 only counts clues discovered by the player.
305** In the newly-introduced Integrated Strategies mode, operators will be gated by promotion levels when freshly recruited. When first obtained, an operator will be locked to their maximum level, stats, and skills at Elite 1 until you can get a duplicate, which bumps them up to Elite 2. The operators specific to this mode will always be at max level when recruited, though they will still be gated like the other normal ones you can get.
306** Credit in the credit shop is capped at 300 for every daily login; you can have more than 300 credit for the entire day between one login to another, but if the login date changes while your credit exceeds 300, the excess credit will be lost. Also, you can only visit 10 clues-redeeming friends to get extra credit for each day; more than that, and you'll get nothing.
307* CapitalismIsBad: The stories that focus on more developed capitalistic nations such as Columbia, Kazimierz, or Bolivar often make a point of showing just how exploitative it is when as unregulated as it is there, and how harmful the rampant corruption and apathy is to the general population, such as Columbia legally extorting their citizens to make profit for the government or corporations, or Kazimierz being a literal corporatocracy that has converted ''everything'' into a commodity. Usually, this also gives them an excuse to persecute the Infected through more discreet means rather than openly, tearing down their claims to treat them better than other nations.
308* CastFromHitPoints: Many operators have skills that enforce this, by bestowing greatly enhanced damage output in exchange for shaving off a huge chunk of their HP, either immediately or gradually. Some Specialists and Medics like Aak or Warfarin also have skills that cast from other operators' hit points as well. These skills are generally considered to be DifficultButAwesome, as reckless usage can and ''will'' kill your operators very easily, and doubly so since the HP loss from different skills ''stack''.
309* CastHerd: The Operators get sorted into these depending on who they used to work for before coming to Rhodes Island (or are still a part of, in some cases). The Penguin Logistics crew tend to interact with one another and have a linked plot thread, for example, as do the Rhine Lab characters, or the Kjerag characters (centered around [=SilverAsh=] and his Karlan Company), or the Lungmen characters, et cetera. The game's relationship web encyclopedia even sorts the characters visually into their respective herds!
310* CatGirl: The appropriately-named Feline race are cat people, and they also have the typical [[LittleBitBeastly cat ears on top of their heads]].
311* ChangingGameplayPriorities: [[{{Roguelike}} Integrated Strategies mode]] plays differently than the base game, due to the random nature of what you're given and will be facing.
312** Versatility and staying power are crucial, and helidrop operators become less reliable due to the limited, randomized squad you get. Operators with a powerful, but short-lasting S3 with long cooldown are usually less reliable for the same reason.
313** {{Crutch Character}}s of 3 and 4-star rarity are vital in the early games. They're called crutches for a reason.
314** Crowd controls are either extremely helpful or downright ''necessary''. Taking Orchid for free may save you from being demolished by nonstop Sarkaz Lancer charges.
315* CharacterSelectForcing:
316** Downplayed, but Operators get 50% increased Trust gain in limited-time story events that feature them, such as Grani and Skadi in "Grani and the Knights' Treasure", encouraging you to take them into the event.
317** Some Challenges disallow you from deploying Operators of a given class. In this case, the game gives you a fair warning on the operators that won't be usable in your current squad. You can still bring the banned operators and they can still activate any passive effects, but you cannot deploy them at all for that map, making them LockedOutOfTheFight. Sometimes, this is downplayed in other challenges when you can still bring and deploy operators of that class, but their deployment costs are multiplied.
318** "Twilight of Wolumonde"'s Tribulation stages and the Paradox Simulations have fixed squads. Paradox Simulations in particular are designed to cater the operator whose Operator Record the simulation is attached to (e.g. Eyjafjalla's pits you with a ZergRush that you have to use '''Volcano''' on).
319* ChekhovsVolcano: The Obsidian Festival is set in the volcano island Siesta. By the time Rhodes Island arrives there, and during a musical concert even, it's already about to erupt.
320* ChildSoldiers: Some operators are rather young. The Ursus Students in particular are ExactlyWhatItSaysOnTheTin.
321* ClarkesThirdLaw: There's a major divide among Arts theory in the setting; Leithanien subscribes to a more mystical approach closer to [[MagicAIsMagicA stereotypical magic system in fantasy stories]], while Columbia is more interested with {{Magitek}} application. This divide is a part of struggle to push their nation's ideologies on the world's stage; Leithanien is an old {{Magocracy}} with a legendary SorcerousOverlord wishing to preserve their influence, while Columbia is a young nation without illustrious founding myth wishing to be a new superpower. [[spoiler:Later revelations show that just about everything magical in the setting was actually technological artifacts left behind by SufficientlyAdvancedAlien {{Precursors}}. For example, the Black Crown, Sarkaz's DivineRightOfKings said to contain all previous kings' wisdom, is actually a receiver for a massive data cloud storage that functions akin to a virtual Website/{{Wikipedia}}.]]
322* {{Cliffhanger}}:
323** Episode 2 ends with [[spoiler:Misha's L.G.D. rescue team getting ambushed by W, leaving Ch'en surprised at the turn of events from the communication radios, with the cutscene itself ending just before Ch'en could guess who the attack was]].
324** Episode 4 also ends with one. [[spoiler:Rhodes Island managed to hold off the Yeti Squadron and rescue the recon teams sent in the investigated city. But as soon as Meteorite contacted Ch'en, the latter reports that while she's safe for the time being, Reunion took over an important facility of Lungmen and is starting to make their move towards the slums and the outer parts of the city.]]
325** Episode 6 ends with Kal'tsit barging in Wei's office declaring that [[spoiler:Chernobog is in collusion course toward Lungmen]].
326** Episode 11 reveals Kazdel Military Commision's secret weapon, [[spoiler:a DreadZeppelin capable of controlling Catastrophe, with an exact goal of a genocidal campaign against the rest of the world]].
327** Many events made up their own subplots' MythArc, where the ending of an event becomes story fodders for its sequel. In particular, "Maria Nearl" is a glorified prologue for Kazimierz Major storyline that serves as [[RightfulKingReturns Nearl's return from exile]] and the start of the schemes against her.
328* ColorCodedForYourConvenience:
329** The background color of an operator's skills determines its type (i.e. Red for offensive, Yellow for defensive, Blue for healing, Green for obtaining deployment points), in most cases[[note]]A few operator skills can be inconsistent with this; for example, both of Pramanix's skills have a blue background despite neither skill being capable of recovering health. Similarly, Dobermann's S2 has a green background even though she cannot gain DP with it[[/note]].
330** Manual skills (such as [[https://gamepress.gg/arknights/sites/arknights/files/2020-05/skill_icon_skchr_weedy_3.png Weedy's third skill]]) have white border around the icon, while [[https://gamepress.gg/arknights/sites/arknights/files/2020-05/skill_icon_skchr_weedy_2.png Auto skills]] don't.
331** Some room types in the RIIC base are color-coded (i.e. Green for Power Plants, Blue for Trading Posts, Yellow for Factories).
332** The grids of Medics are colored [[OrangeBlueContrast blue in contrast to the orange]] grids of the other operator classes. Grids for determining the range of an operator's skills are colored red.
333** Additional deployment and skill points can be acquired in the middle of an operation, thanks to some operators' skills and talents. To avoid confusion, these are accompanied with a color-coded text - Orange text for bonus deployment points, and blue text for bonus skill points.
334** Before an enemy wave spawns, a colored line will appear to indicate their route to the blue base, with a red line for ground-based units and a yellow one for aerial units.
335* ColorCodedItemTiers:
336** Relating to operator rarity:
337*** Apart from the number of stars, an operator's rarity can also be determined by a color in the bottom part of their squad portrait. Starting from 1-star to 6-star, the colors are white, green, blue, grey, yellow, and orange.
338*** When recruiting operators, the color of the glow inside the bag indicates the rarity of the operator you're about to get: white for 1 to 3 stars, blue for 4-star, a subtle gold for 5-star, and bright golden flames with a rainbow glint for 6-star.
339*** During gameplay, an operator's portrait in the deployment inventory at the bottom of the screen will have a colored line below their portrait denoting their rarity: a white line for 6-stars and a yellow line for 5-stars; operators of 4-star rarity or lower lack any colored lines below their portrait.
340** Materials have color-coded borders based on their rarity or tier, ranging from white, green, blue, pink, to yellow.
341** In ascending order, Battle Records are colored green, blue, yellow to golden.
342* CombatPragmatist:
343** The majority of the Vouivre race are noted to be this. Despite their dragon motifs, according to Liskarm's bio, most Vouivre aren't actually very physically strong or well-versed in Arts, thus instilling a disposition for guns among their operators. That is not to say there aren't melee or Arts users among them, however.
344** In Chapter 3, Skullshatterer hatches a plan to instantly destabilize Rhodes Island's forces by distracting them long enough to lay a trap for the Doctor and kill them with a landmine. [[spoiler:Not only does the assassination fail, the attempt on the Doctor's life leads to Amiya turning her powers on Skullshatterer, wounding him badly enough for some quick last words before he succumbs to his injuries.]]
345* ComMons: Weirdly enough, the 3-star operatives are this. Unless one is purposefully scouting for 2-stars, all gacha banners and high-level Recruitment are incredibly likely to result in these operatives, due to their broad pull criteria (1 and 2-star units require certain uncommon tags to show up at all, and those are very liable to be crossed out). They typically show up in such regularity that one is more likely to max out their potentials before getting an actual rare character.
346* ComplexityAddiction:
347** The enemy AI seems to be rather fond of this at times. On certain maps, most notably CE-5 and 5-3, many enemy units will spawn standing within spitting distance of the player's blue base(s) that they could just waltz into and ruin your day instantly. Instead, these units will often be programmed to take surprisingly complex routes all over the place [[HoistByHisOwnPetard just so you can have enough time to plop down a reasonable resistance to thwart their whole plan]]. It's justified in the sense that these specific enemy units will almost always be very strong, therefore having them move around a lot serves to give you enough time to try to take them down, plus having them just simply walk into your base from where they spawned will just be cheap and annoying. Though, it raises the question of ''why'' they were standing in those spots to begin with.
348** In some maps with multiple blue bases and allow the manipulation of enemy routes via roadblocks, it is possible to see enemy waves ''walk right through a blue base'' instead of, you know, entering that specific base to ruin your run. This is due to the fact that certain wave spawns are designated to target a specific blue base. [[https://www.youtube.com/watch?v=hJKEvLSsvcM Have a look]]. For even more fun, if you have left over roadblocks, you can manipulate enemies to walk back and forth along the same path by removing and replacing roadblocks over and over.
349* ContinuingIsPainful: Typically averted when a mission fails, since you'll be refunded basically 99% of its sanity cost, allowing you to simply retry until you win. Played completely straight with challenge maps, however, which only give you back half of their cost, and you will ''feel'' it should you fail more than once in a row. Made worse by the fact that the usual "mercy" mode for first-time failures don't apply to Challenge maps, meaning you will still only be refunded half of the entry cost regardless of whether it's your first or tenth attempt.
350* ContinuityNod:
351** In Operation 5-2, Ch'en recalls that [[spoiler:she, Hoshiguma and their L.G.D. squad got separated from Amiya and Rhodes Island when they were investigating the deserted sub-city. It's a reference to what happened in Chapter 4. Rhodes Island and the L.G.D. were indeed sent together in the city's entrance, but only R.I. was able to make it through the city center and fought [=FrostNova=] there]].
352** Also near the finale of Chapter 5, [[spoiler:Ch'en remembers Faust as the Reunion member who got arrested and interrogated by the L.G.D. on Chapter 3, with his trademark crossbow being her indicator]].
353** In "Gavial the Great Chief Returns", the Alive Until Sunset girls still have the key they got from Kal'tsit back from "Heart of Surging Flame" extra stage story event, which Kal'tsit got from Skadi even further back in "Grani and the Knights' Treasure". This key ends up being a plot point in "Stultifera Navis".
354** In "Darknights' Memoir", W first properly met Theresa when she tried to (badly) fix a Rhodes Island's automatic door. When W becomes playable, if you put her in a RIIC facility, she will remark wishfully that the door has been fixed.
355** In Chapter 8 during Talulah's flashback, one of the Yeti Squadron named Petrovna, who appears several times in Chapter 6, complements Talulah's fire Originium Arts. Talulah then claims that her Arts isn't actually fire-based. In Reed's profile, it is said that the Draco's hereditary Arts is actually a manipulation of life force that visibly looks fire-like.
356* CosmeticAward:
357** Completing the Challenge Mode of the map will give you 4* victory and turn the stage's mark into a white hexagon instead of the blue one. Several stages also give you plaque furniture that you can put up in your dorms.
358** After the game introduces Path to Glory, a medal achievement system, you can do various objectives in game to gain the medals, like upgrading your operators to Elite 2. Limited time events also have their own medal sets, and one medal can be trimmed further by completing an extra objective (e.g. you get Contingency Contract's trimmed medals by completing Risk 18 during the first week of the event, when the available Risks are the harshest). The only purpose for this is so you can show off your medals to your friends.
359* CostumeEvolution: A good number of operators change into modified outfits after being promoted to Elite 2, though their sprite does not change to reflect this. A few examples are the Rhine Lab trio consisting of Saria, Ifrit and Silence: Ifrit's black ore lesions disappear, and the upper part of her sleeves are connected like a shawl; Silence's green tints change to red such as the inside of her garment and the light of her drone, and Saria dons a completely different coat. Another prominent example is [[spoiler:Mudrock]], in which they remove their helmet and armor to reveal that [[spoiler:she was an attactive silver-haired girl underneath]].
360* ConvectionSchmonvection: The latter parts of Obsidian Festival has the player literally fighting inside a volcanic cavern, complete with lava flows and the occasional eruption from magma geysers. Nobody suffers from any lasting health effects from staying there, especially those who use [[KillItWithFire fire-based attacks]] that should have burned up all of the oxygen, if there are still any.
361* CrapsackWorld: ''In spades.''
362** The world of ''Arknights'' is plagued by great Catastrophes-- manifesting in forms such as storms, earthquakes, and falling meteorites -- forcing civilizations to adopt a nomadic lifestyle with the help of mobile cities. The mineral left behind in the site of these Catastrophes, Originium, is valued as a wonder material that can be used in all sorts of applications, but are also able to fuse with living flesh when handled incorrectly, leading to the emergence of the Infected. The Infected are discriminated heavily because they become living vector of Oripathy, which have 100% mortality rate. That's still not counting the constant fighting, corruption, poverty, and geopolitical scheming that litters the world, naturally all at the expense of the common people.
363** Even worse, later chapters reveal various supernatural threats exist in the unexplored margins of Terra, such as rogue gods, extradimensional demons invading from the northern ice caps, and a horde of {{Eldritch Abomination}}s rising from the sea. And ''even worse'' than that, "Lonetrail" reveals that [[spoiler:Terra is actually in the sights of some cosmic disaster, and it's only a matter of time before the whole planet is destroyed]].
364** "Babel" would later reveal [[spoiler:a lot of the setting's main conflict stems from AbusivePrecursors who seeded the planet in the first place both with foreign intelligent life in the form of the first Ancient races, which would later come into conflict with the various native races of Terra such as the Sarkaz... and Originium that would eventually convert them into [[HumanResources a living resource]] for their own world to survive some great catastrophe, and it is in their best interest to keep the people off their foot until Oripathy consumes them completely.]]
365* CriticalExistenceFailure: Regardless of their remaining health, an operator or enemy's sprite will remain unchanged, until their HP bar empties out, at which point they will keel over and fade away.
366* CriticalHit: Some operators have talents that let them dish out a substantially more powerful hit than normal every once in a while. These special hits have red numerical damage indicators showing above the target.
367* {{Crossover}}: ''Arknights'' has collaborated with the following companies and product brands so far:
368** UsefulNotes/KentuckyFriedChicken, featuring themed skins for [[https://gamepress.gg/arknights/sites/arknights/files/2020-02/ArtIfritSkinHalloween.png Ifrit]], [[https://gamepress.gg/arknights/sites/arknights/files/2020-02/ArtExuSkinKFC.png Exusiai]], and [[https://gamepress.gg/arknights/sites/arknights/files/2020-02/ArtCroissantSkinKFC.png Croissant]]. This also overlaps with ProductPlacement since the operators' outfit artworks also feature various KFC foods or products on display.
369** Nissin Cup Noodles, but it's simply cups with ''Arknights''-themed covers.
370** World Wildlife Fund, featuring a [[https://i.redd.it/o7fzj34x7mj41.jpg skin for Cliffheart, and a new operator named Purestream]].
371** An official collaborative event between ''Arknights'' and ''VideoGame/RainbowSixSiege'' was launched in 2021, with four operators from said game being introduced as playable units.
372** 2021 also saw Amiya appear as a DLC character in ''VideoGame/CytusII'', bringing ten songs from ''Arknights'' along with her.
373** A collaboration with Creator/{{Capcom}} was announced during the third anniversary livestream in 2022, which is revealed to be a crossover with ''VideoGame/MonsterHunter''.
374** A collaboration event with ''WebAnimation/TheLegendOfLuoXiaoHei'' was launched in 2022, featuring the titular character as a free Operator.
375** 2023 starts with the release of ''Arknights'' DLC content in ''VideoGame/MuseDash'', featuring Amiya as a new playable character, adding many songs from the Arknights soundtrack collection under Monster Siren Records, and incorporating the Rank Letters from the Contingency Contracts (in particular the stylized interlocking double and triple S ranks) in their results screen.
376* CrutchCharacter:
377** All 3-star operators have comparatively superior stats compared to those of higher rarities at around the same level range, to give the player a leg up during the earlier stretches of the game, but will gradually fall behind as harder content are released and their low stat caps make them increasingly less viable.
378** The Vanguard class as a whole are crutches, typically deployed at the start of battle to make use of their DP-generation skills. They can block and kill a few Goombas at the start, but once the tougher ones start appearing, they won't be able to tank them, let alone stop them.
379** There are a few exception in form of certain Vanguard units like Bagpipe, Siege, or Saga, although typically you'll switch to more durable and/or heavy hitting unit later on anyway.
380* CrypticConversation:
381** A mysterious voice speaks in the prologue cutscene moments before the Doctor regains consciousness.
382** Kal'tsit and Skadi's conversation in "Grani and the Knights' Treasure", Kal'tsit and Alty's conversation at the end of "Heart of Surging Flame", Kal'tsit's excerpt from Tachanka's profile... Kal'tsit has a lot of this.
383* CursedWithAwesome: Getting infected with oripathy may awaken a person's hidden magical talent, or in some cases even enhance it. It still won't save them from slow, agonizing death without proper treatment, and even ''with'' treatment, oripathy symptoms and side effects can end up as various flavors of nigh-debilitating (Eyjafjalla, for example, is only ''barely'' not functionally deaf, even with RI-supplied hearing aids). But getting stronger at your Arts is obviously better than getting nothing at all, like Fang does, which just plain sucks.
384* CutAndPasteEnvironments: The exact same stage may appear in multiple missions. The story chapters [[JustifiedTrope justify this]] in a way where a mission is a direct continuation of the previous one (you're just defending against a new batch of opponents), so it would make sense why stages get reused here.
385* CutscenePowerToTheMax: A lot of operators are significantly more powerful during plot events than they are during gameplay, sometimes boasting feats way outside of their paygrade compared to when actually deployed by the player.
386** For example, Skadi, a 1-block Dreadnought Guard that does poorly against multiple opponents, regularly goes toe-to-toe with many Reunion soldiers during Grani's event without breaking a sweat.
387** Another example is Hoshiguma during [[spoiler:a point in Chapter 5, where she single-handedly defeats entire Caster-backed Reunion squads on her own, despite her class being innately vulnerable to magic damage]].
388** In general, Amiya is the queen of this trope so far as ''Arknights'' goes. Her magic is regularly capable of defensive feats she never seems to trot out in actual battles, including [[spoiler:using dark matter to contain Talulah's flames, described as capable of vaporizing materials to the point that no ash remains. Then again, Talulah never wanders into a battle, waves her hand, and wipes out Rhodes Island in a single giant poof either.]]
389** Finally, [[spoiler:Blaze along with Ch'en at another point in Chapter 5 manage to make a joke out of two bosses, their subordinates, and snipers, despite being short-ranged Guards, who are vulnerable to long-ranged damage during gameplay. In the very same cutscene, Amiya is also capable of blocking Faust's ultra-powerful crossbow shots with her magic, something only a Defender can really do, and even then not very well.]]
390* DamageIncreasingDebuff: The Fragile debuff amplifies incoming damage by a certain percentage depending on the source. Arts Fragility does the same thing, but only works for Arts damage (albeit stacking with Fragile). Certain Operators have ways to apply separate damage amplification, such as Skyfire/Sesa increasing Arts/Physical damage taken by blocked enemies respectively, or Saria's Calcification causing all enemies in range to take bonus Arts damage.
391* DamageReduction: Two types. DEF reduces physical damage if the target's DEF exceeds the physical attacks ATK, while RES reduces Arts damage based on a percentage (1 RES = 1% Arts damage reduction). Percentage based damage reductions like Sanctuary (reduces physical and Arts damage taken) also exist, although they're less common, especially on Operators.
392* DamageTyping:
393** There are three damage types: Physical, Arts, and True. Physical damage is resisted by DEF in a 1:1 ratio; if an attack value is equal to or less than the target's DEF, the attack deals ScratchDamage. Arts ignores DEF but is resisted by RES, which reduces the Arts attack by a flat percentage. Physical attacks tend to be better against numerous and less armored enemies while Arts attacks are better against tough and armored opponents. True damage ignores both DEF and RES, as well as bypassing most damage ignoring or dodging mechanics.
394** Elemental Damage is a different type of damage that doesn't initially affect HP, but gradually builds up as a meter on the affected target, triggering a severe effect if the meter maxes out. The Wandering Medic branch is specifically designed to counter this by reversing said buildup, while certain classes (such as Ritualist Supporters and Primal Casters) can turn this on enemies. The current types of Elemental Damage include Nervous Impairment,[[note]]Inflicts massive True damage and a lengthy stun[[/note]] Corrosion,[[note]]Deals heavy physical damage and inflicts a permanent stacking DEF debuff each time it triggers[[/note]] Burn,[[note]]Deals massive Arts damage and temporarily reduces RES[[/note]] and Necrosis.[[note]]Deals Arts damage over time and drains SP while preventing skill usage; on enemies, it'll inflict a decaying ATK debuff instead of SP loss[[/note]]
395** There is also a different type of Elemental Damage which specifically refers to the damage dealt to enemies by ally elemental effects. Enemies will reduce this with the Elemental Resistance stat, and the actual Elemental buildup with the Effect Resistance stat. [[GuideDangIt There's currently no good way to distinguish between the two in-game.]]
396* ADayInTheLimelight: Many side story events star certain operators as the protagonist, typically the 6-star operator introduced alongside said event. An update to the game added Operator Records, unlockable scenes centered on certain playable Operators that can be accessed in their profiles.
397* DeadHandShot: In Chapter 4, several corpses have their hands raised out of the rubble when [[spoiler:Mephisto burned the building and its surroundings. Later on, these dead hands [[https://aceship.github.io/AN-EN-Tags/img/avg/images/avg_40_2.png became frozen when [=FrostNova=] arrived]]]].
398* DeadlyScratch: Exposing open wounds to Originium is one potential vector for Oripathy infection, and several characters in the game became infected after receiving otherwise-inconsequential wounds that were inflicted by or contaminated with Originium crystals.
399* DeathWorld: Terra in spades. Catastrophes are city destroying disasters that happen at random, and they leave behind a mineral that causes a highly lethal transmittable illness yet is still essential to life. Most of the world is harsh barrenlands where survival is a miracle, and on top of the more normal animals that can easily kill or maim a person, the ocean has a HiveMind of hostile sentient sea monsters, and the borders of civilization house reality-collapsing entitites that grow stronger just by people knowing about them. And on top of that, even if you find civilization, many of them are corrupt dystopias whose citizens are constantly at risk of persecution or death, with the nations of the world constantly locked in both cold and hot wars. How any form of civilization survives on this planet is a mystery.
400* DefeatEqualsExplosion:
401** Most airborne units are machines, so this naturally applies.
402** Also applies for Infused Originium Slugs, except these ones actually damage Operators.
403** Big Ugly in "Gavial the Great Chief Returns" explodes when destroyed. While it's subverted because the mech spits out the High Priest and he still can reduce your defense point when entering the blue box, the High Priest runs around with [[DamageOverTime his ass on fire]] so he most likely will pass out before he can escape.
404* DefeatMeansFriendship: Some of Rhodes Island's operators first faced you as opponents before joining up.
405** At the end of Chapter 6, [[spoiler:Frostnova is truly impressed and touched by Rhodes Island's conviction and determination, and defects to your side after a grueling last stand. Unfortunately, her health has rapidly declined after she abused her frost Arts so heavily in her final battle, and she ends up dying in your arms]].
406** At the end of Chapter 8, a large chunk of Reunion's forces defect to Rhodes Island after opposing us for much of the first seven chapters; [[spoiler:Patriot's men, in particular, make peace with Rosmontis and lead the defections]].
407** Ambusher Specialist Ethan was originally a part of Reunion's Wraith squads, but the events and battles around Chernobog and Lungmen drove him to side with Rhodes Island.
408** Mudrock first opposes you in the ''Twilight of Wolumonde'' due to circumstances; Rhode's Island's commitment to protecting the people impressed her enough that she joined up later as a Defender. Her men also join with Rhodes Island in agreement with her choices.
409** La Pluma, Tequila, and Mizuki all are either rivals or opponents to Ch'en during her Dossoles Holiday, and all of them ended up following her back and signing on after the event.
410** [=SilverAsh=] chronologically first opposes Rhodes Island [[spoiler:due to a coup he raised in Kjerag]] during ''Break the Ice'', after which he lends his support and joins in ocassionally as a Lord Guard; his sisters and some of his entourage also sign on as operators. Looks like the Doctor truly impressed him with his tactical and strategic chops.The Black Knight Degenbrecher first appears as Silverash's enforcer and the climactic boss encounter in ''Break the Ice'', is [[spoiler:ultimately stalled by Rhodes Island operators]], and later becomes recruitable after ''The Rides to Lake Silberneherze''.
411** In Chapter 9, Loughshinny first appears as an antagonist. [[spoiler:various events that transpire during the conflict result in her being brought to Rhodes Island by her opponent Bagpipe for medical treatment, and she would end up registered as the operator Reed]]. While she doesn't end up close friends with the person that saved her, at the very least no more antagonism between them exists.
412** The trilogy of side stories of "Maria Nearl", "Pinus Sylvestris", and "Near Light" detail how Platinum was once an assassin of the Armorless Union and effectively an antagonist to Maria Nearl, the Infected Knights of Pinus Sylvestris, and Margaret Nearl. She ends up joining Rhodes Island in the aftermath of "Near Light", and Maria's operator files as Blemishine state that Platinum joined at the exact same time as her, resulting in an awkwardly tense moment when they met in the HR Office.
413** "Under Tides" had Irene turn up as a junior Iberian Inquisitor who was antagonistic to Skadi out of suspicion of her nature as an Abyssal Hunter; by the end of Stultifera Navis she learns enough about the connection between Aegir and Iberia and the Abyssal Hunters that she joins Rhodes Island to learn more about the world and the Abyssal Hunters.
414** In Chapter 11, [[spoiler:Paprika first appears as a very junior and inexperienced Sarkaz Mercenary under the Kazdel Commission; as she hadn't succumbed to the bitter and violent hatred of the other Sarkaz mercenaries present, she was allowed to surrender, and eventually ended up working for Rhodes Island as a Chain Medic]].
415** After the major Incident that happened in Dorothy's Vision, Dorothy ended up under the supervision of Rhodes Island as an operator after initially being an opponent briefly during said Incident.
416** While Ideal City didn't really have any real foes to speak of, Sitch Canvas started out moderately antagonistic and antisocial, and after being spooked by Gavial and bullied a bit, he ends up being recruited as a Mech-accord Caster.
417** What the Firelight Casts has Fischer start out as a mysteriously antagonistic spy who takes some Tarans hostage, and Harmonie as a double agent for both the Dublinn and [[spoiler:the Duke of Wellington]], by the end of the story, [[spoiler:Harmonie joins Rhodes Island to learn more about the group that rescued Reed, and Fischer ends up recruited as Puzzle]].
418* DeliberateValuesDissonance: Terra as a whole is a CrapsackWorld, and this environment reflects the attitude the Terran locals exhibit when they interact with those from modern-day Earth.
419** It seems that animal rights are considered a minority, and not as widespread as the modern world.
420*** Rhodes Island is not impressed with King's Wand exacting vengeance upon Reunion for killing Phil, the group's TeamPet - viewing it as plain DisproportionateRetribution on Skyfire's part, rather than a rightful act of justice for the death of an innocent.
421*** When Luo Xiaohei's group gets stranded on Terra (Lungmen to be specific), they are understandably horrified by how the locals don't give a damn about killing animals (with HarmfulToMinors in full effect). When Xiaohei justifiably calls out a barkeeper for wanting to kill a musbeast, the latter gives out a (rather harsh) ShutUpKirk on the poor boy. This is notable as mainland China are normally not fans of animal rights.
422** All of the members of Team Rainbow (especially Ash) are outright disgusted with the Terran locals' inhumane and barbaric treatment towards the infected and, as a counter-terrorist unit that hold values of liberty and rights of others, will go out of their way to save them. Because this act is completely unheard of in Terra, the Terran Operators are rather baffled at their acts of altruism.
423* DevelopersForesight: Unfortunately for savvy players, some roadblock tactics cannot be abused in this game:
424** You are not allowed to place roadblocks in every single path leading to the objective, otherwise that would be an unfair InstantWinCondition.
425** Dare to place a roadblock on a tile already occupied by an enemy? Too bad, the enemy will destroy the roadblock in just a few hits, before continuing its previous path; Wraths and Egrates will simply phase through as though they weren't there. Except Guerilla/Mercenary Sarkaz Casters (Leader), since these enemies can't directly attack and instead emit damaging pulses. Placing a roadblock on top of them will instead immobilize them since they can't break it, creating an OutsideTheBoxTactic that can be used to neutralize their threats.
426* DifficultButAwesome:
427** Summoner Supporters can deploy Summons, sure, but if you don't know exactly where and ''when'' to deploy them, they're only going to drag you down, especially considering each Summon takes a slot in the Deployment limit. But with well-placed summons that are retreated when the situation calls for it, together with the utility multiple Summoner Supporters offer, makes them a boon to have if looking to gear things up a little. Skilled doctors can make Summoner Supporters solo a map, using their summons as [[ConstructAdditionalPylons pylons of choice]] to obstruct enemy access.
428** Using the ''Spearhead Squad'' in Integrated Strategy gives you only [[OneHitPointWonder 1 Life Point to start with]], though you can get more later. While this means you can't make any mistake in the early game, your operators get 15% boost to their Atk and Hp to compensate. Stacked with other Collectibles and Buffs, this boost can completely nullify the enemy stat boost in harder difficulty, giving you better chance to clear it.
429** Juggernaut Defenders and Reaper and Musha Guards deal massive damage and tend to have very strong defenses, and used right they can hold or clear entire lanes on their own with no support, as they heal with each attack. However, they cannot be healed directly by Medics or Supporters, and if they take elemental damage they cannot be healed by Wandering Medics. Knowing where and how to deploy them (and when and where to ''not'' deploy them as well) iS key to success and takes some experience.
430* DiscOneNuke:
431** All beginners are given a 5-star StarterMon upon creating their account, and can get a few more from the beginner gacha, which costs way less Orundum to spin and guarantees another 5-star ''and'' a 6-star within the first 10 rolls. Both the starter 5-stars and the 6-star you get from the gacha are some of the most powerful out there, and can carry you well into the late game if you build them right.
432** Some lower-rarity operators are easily capable of competing with high-rarity operators. For example:
433*** Melantha is an easily recruited 3-star Dreadnought Guard, who can easily be raised to max level and potential, giving her a base ATK of 824 (1236 with Skill active and maxed out), far outclassing any other 3 or 4-star operator in the game.
434*** Kroos, for all the memes around her, is a straightforward and very effective early-game 3-star Marksman Sniper. She can actually outmatch even Jessica in DPS when both operators are at E1, and has a very low DP cost to employ in missions, so she can easily fill your needs for early-game physical ranged damage and shred drones that wander into her sights.
435*** Cuora is also easy to recruit and upgrade to Elite 1, and is often used as the go-to Defender. Her ridiculous base DEF combined with her popular second skill granting even more defense, Block-4, and self-healing. The only drawback is that while her second skill is active she stops attacking. (Her first skill is generally ignored.) However, attacking isn't her job to begin with, so it's easy to ignore. The other minor weakness is that she only has an average amount of hitpoints and no Resistance to Arts damage, so Elite Casters can easily force her to retreat. Her module further improves her defenses and boosts her hitpoints to make her even more durable.
436*** Vigna is in a similar position to Cuora for Vanguards of the Charger archetype. Her durability is pretty decent, but what really makes her really effective is her high attack power, and both her S1 and S2 skills grant her a damage boost that stacks with her Talent, turning her into a CriticalHit monster that can even do significant damage to high-defense enemies. Her relatively low deployment cost, plus her Vanguard ability to fully refund that DP upon retreating, allows her to hit hard, then pull back and allow you to reuse her DP to call someone else in. Her module further increases her attack power.
437*** Myrtle is the ''definitive'' 4-star Standard Bearer Vanguard. Another easy-to-recruit operator (has the tags Vanguard, '''Healing''', DP Recovery), her true power lies in her very efficient DP generation from her first skill. She gains even more options and utility upon promotion, too - her second skill can provide healing while generating some DP, and her Talent upon her second promotion allows her to grant ''all Vanguards'' a small amount of HP regeneration, and her module makes her talent even stronger.
438*** Sussurro is this for Medics. Like Cuora, Sussurro is a 4-star that is easy to recruit and upgrade, and with '''Deep Healing's''' utterly ridiculous ATK and ASPD boost, she can outheal 5/6-star medics by a significant margin. While it can only be used twice per operation, Sussurro's absurd burst healing is absolutely crucial in getting past early game roadblocks such as [[WakeUpCallBoss Skullshatterer or FrostNova]] by keeping Cuora alive.
439*** Perfumer is the definitive early Multi-target Medic of choice. Like Sussurro, she's also a four-star Medic that can be recruited with little difficulty. Her trait as a Multi-target Medic lets her heal multiple operators at once, and while her skills are fairly simple, her talent that gets unlocked once you promote her is one of the best Medic talents, as she can provide a small amount of passive HP regeneration to ''all operators at once'', even those outside her healing range. And yes, her talent even gets better with further promotions and upgraded potential.
440*** Jaye is a 4* Merchant Specialist who drains your DP as long as he's on the field, but makes up for it with solid stats across the board and a second skill that activates quickly, lasts until he's retreated, and increases his ATK while allowing him to [[LifeDrain steal the life]] from enemies and use it to heal himself or the Operators surrounding him. Not only does this make him an effective hybrid DPS and healer you can retreat and redeploy on the fly, but his self-healing is so effective that he can take on many early-game bosses solo and win. With little help of buffers, he can also take on ''Talulah''. All of this from an Operator as easy to recruit and raise as any other 4*. His module reduces the DP consumption rate from 3 per tick to 2 per tick, making it easier to field him.
441*** Gravel is a 4-star Executor Specialist that is very easy to recruit, and she has two short-term skills that grant her increased toughness on deployment (S1 gives her a lot of defense that slowly degrades over the skill duration, while S2 gives her a shield of bonus hitpoints for the skill duration). Her very easy Recruitment (use just the Fast-Redeploy tag when recruiting for a high chance to get her onboard), and her ability to provide a deceptively tough emergency blocker or distraction for enemy fire, makes her one of the most useful early-game specialists. Her stats scale well enough to keep her useful long into the midgame, and she retains a niche role even in the endgame. Her module makes her speed up the redeployment timers of operators from Kazimierz whenever she deploys once it's upgraded.
442*** Click is a 4-star Mech-Accord Caster that is easy to obtain during headhunting, and she offsets her relatively low attack power with her above average attack speed and talent that amplifies damage as long as she's attacking the same target as her camera drone. She has relatively low DP cost for a caster, and her skill allows her drone to start attacking independently of her and adds a fixed chance to stun enemies whenever she hits them. On top of that, she has a pair of powerful Base Skills that allow her the produce experience-boosting Battle Records in the factories.
443*** Pudding is a 4-star Chain Caster that is easy to recruit via the red cert shop (and she can be raised to maximum potential fairly quickly). She has a module that eliminates the diminishing damage her attacks normally get when they bounce between enemies, and her second skill allows her shots to bounce back to enemies that have been struck on a previous chain hit in the same attack, which combines with her module to allow her to do tremendous damage when there are only two enemies in range for the chained attacks to bounce between.
444*** Ethan is a 4-star Ambusher Specialist that you can easily hire from the red cert shop. Both of his skills have their useful niches, with his first skill inflicting poison-like residual Arts-based damage over time, giving him a major role in fighting enemies that spawned adds upon their defeat, such as the Geists from Invitation to Wine and the various Shangshu maps. His second skill triples the effectiveness of his binds, making him one of the most reliable ways to tie up enemies, and as of Ideal City, his upgraded Module improves his base bind chance and bind duration to the point that his second skill becomes the single most reliable way to inflict the status onto enemies. In addition to his unique niches in various maps, he synergizes extremely well with the Collectibles that afflict damage to enemies suffering from statuses like Bind, Stun, and Freeze inside Integrated Strategies.
445* DiscardAndDraw: ''Arknights'' provide players with a plethora of operator subclasses, each with its own niches. Within these subclasses, certain operators are designed in a way that each individual operator will excel in some fields that their peers do not, even if said peers are of a higher rarity level (e.g. Shirayuki deals Arts damage with her S2, whereas Meteorite simply deals high physical damage; Gummy's S1 heal has no condition unlike Nearl's and Saria's, etc...). This way, players are given multiple options for many scenarios, and even 4-star operators can outshine their rarer counterparts given the occasion. No such luck exists yet for operators 3-star and lower, however, due to their simpler kit and lack of specialization.
446* DoesThisRemindYouOfAnything: The Rhine Lab trio's relationship is very reminiscent of a dysfunctional family; Silence is a ControlFreak and neurotic mother, Saria is a well-intentioned SecretKeeper of a father, and Ifrit is their child who falls into delinquency.
447* DoubleEdgedBuff:
448** Aak has two skills that do this: ''Type-y Stimpack'', which increases DEF and Max HP, and ''Durian-Flavored Stimpack'', which increases ATK and ASPD. Activating either skill will result in a rapid loss of 500HP for his chosen ally, [[TeamKiller which can kill them]] if used at the wrong time, since there's no safety net in case their current health level is too low. Upgrading his skills only improves the buffs given and doesn't alleviate the HP loss.
449** Warfarin's "Unstable Plasma" ability increases the ATK stat of Warfarin and a random ally within range in exchange for scraping off 3% of their max HP per second. In total, each activation will result in a ding of 45% max HP, so for your own sanity's sake, do not put her together with an Ifrit specced for Scorched Earth, unless you have another Medic at the ready to hold both of their hands.
450** Several operators have skills that reduce their HP on use or on deployment. They are typically part of an archetype that benefits from or alleviates the demerits of being at low HP (e.g., Musha Guard or Dollkeeper Specialist) or has a talent to make use of the HP loss (e.g., Morgan).
451* DraconicHumanoid: Some ancient races like the Lung, Draco, and Vouivre are based on dragons or wyverns. People in this race can also [[HornedHumanoid have horns]]. Then there's Estelle, who is actually an Archosaurus (read: a crocodile) but looks vastly more draconic due to Oripathy-induced mutations giving her metal scales and a pair of gigantic horns. There's also Dusk, Nian, and Ling, who bear draconic horns and tails similar to Lung, but are of an "unknown" race. [[spoiler: This is because they are are [[PiecesOfGod broken pieces of a Feranmut, or regional god, known as Sui, who once ruled over Yan.]]]]
452* DramaticIrony:
453** One of the flashback scenes in Chapter 8 has [[spoiler:Patriot defending Talulah from the Emperor's Blades, having finally accepted her as Reunion's leader and proudly declaring that she will never become another Koschei.]] On its own, it's a triumphant moment and seemingly a great ending to [[spoiler:Tallulah's character arc]]. Unfortunately, the player already knows [[YouCantFightFate what happens after]]...
454** To the prisoners in ''Mansfield Break'', the Vouivre jailer who shows up every now and then is just another member of the prison's staff, with even the dialogue boxes [[NominalImportance referring to her by generic titles]]. The audience, however, will immediately recognize her as Saria, and since the event's FramingDevice already made it clear that Rhine Labs had a hand in breaking Anthony Simon out, will be expecting her to play a role in the ensuing GreatEscape.
455* DrawAggro: Most often, enemies would prioritize attacking the recently-deployed operator when it's within their reach, so this trope can also be {{invoked}} for the player's advantage. A tutorial even teaches you how to deliberately draw aggro from an injured operator in order to save them. Meanwhile, certain operators and enemies have ways to increase their own aggro and force enemies to go for them.
456* DualBoss:
457** Faust and Mephisto make up the boss fight of map 5-10. Though, to be fair, it's more of "one-and-a-half-boss and a bunch of EliteMooks", since Mephisto is a SupportPartyMember.
458** Played straight during Contingency Contract #4: Lead Seal, however, which pits you against [[MightyGlacier Big Bob and Mudrock]] at the same time.
459** Also played straight for FA-6 from ''Rewinding Breeze'', which sends two Pompeiis down the same lane.
460** MN-8 and MN-EX-8 from ''Maria Nearl'' both involve you fighting the Corrupted and [[EnergyBow Withered]] Knights together, [[KillOneOthersGetStronger with one becoming stronger after the other is defeated]]. The two of them reappear in Annihilation: The Grand Knight Territory Outskirts, though they're fought one after the other this time. This gimmick gets repeated with the Frost Buck and Snow Doe from ''Phantom & Crimson Solitaire''.
461** The Tidelinked Bishop and Tidelinked Archon/Immortal from ''Mizuki & Caerula Arbor'' are fought together, and notably must be killed together as well due to one [[GeminiDestructionLaw gradually reviving the other if still alive.]]
462* DutchAngle: During missions, tapping an Operator to view their stats and skills screen would also tilt the camera's perspective. Even the "Mission Accomplished" message gets slanted when you complete the mission while this is in effect.
463[[/folder]]
464[[folder: E-G]]
465* EarlyGameHell: You'll be lacking on some necessary features and base structures early on, which forces you to proceed with the main story if you even want to [[UnlockableContent unlock them]].
466** Promoting operators to Elite 2 and obtaining higher skill levels also require rarer materials, which are hard to come by if you haven't completed some farmable nodes yet. Speaking of materials, the initial global build of the game is ''very much'' an early-game hell. As of Chapter 4, which is the global version's initial release build content, farming nodes for blue-rarity materials have only really begun to crop up in small amounts, even less for purple-rarity ones, meaning their drop rates are absolutely ''abysmal''.
467** Unless one is ''really'' diligent at farming for scraps in order to craft several tiers of materials in a row, expect to grind for days on end without seeing a single drop of what you need, and high-rarity operators demand truckloads of these things to upgrade and promote. This becomes far less problematic as the player upgrades Rhodes Island's base and can synthesize higher-tier items from lower-grade ones, as well as improve the HR Department so they can recruit more Operators. Each recruited Operator, both new and duplicate, gives certifications which can be traded in the shops for materials.
468** In Reclamation Algorithm mode, your first run will be the hardest as you have nothing to start with. Thankfully as you replay the mode, build your base food production, fortification, and most importantly Transregional Communicator to [[NewGamePlus bring some items to your next run,]] the mode gets progressively easier.
469* EarlyInstallmentWeirdness: ''Grani and the Knights' Treasure'', the first side story added to the game, has a number of oddities when compared to future side stories, mostly on account of its smaller scope:
470** ''Knights' Treasure'' only introduces one new regular enemy type to the game, the Acid Originium Slug, with the other enemies mostly being Reunion grunts from the main story stages. Later side stories primarily have the player fighting against all original enemies.
471** The event's expert stages were split into three "EX" stages and three "HX" stages, with the costs associated with Challenge Mode even on normal[[note]]3 Plans required to practice the stage, and only half Sanity returned if you fail[[/note]], but with only the latter having actual Challenge Modes. Both of these would be combined into a singular EX stage type that had Challenge Modes and normal costs for normal mode.
472** Big Bob, the event boss, not only lacks any special abilities, had a stronger PaletteSwap named "Big Adam" fought in GT-HX-3 who is classified as a seperate boss in the Enemy Index. Later events would simply bring back the original boss with buffed stats for their expert stages.
473** Most of ''Knights' Treasure''[='s CGs=] are edited together from character portraits and cutscene backgrounds, as opposed to the original illustrations used in later side stories.
474** The story segments are extremely short by ''Arknights''[='=] standards, clocking in at just 8950 words in the English version. For comparison the second side story, ''Heart of Surging Flame'', is over twice as long at 21,490 words and is still in the top 3 shortest side stories/intermezzi by word count.
475* EasterEgg: The limited 10 Pull ticked for the first anniversary has a piece of Braille hidden to the side. Translating it leads to the message: [[spoiler:"It’s [[PrecisionFStrike fucking]] limited!!"]]
476* EasyLevelTrick: Specialists (particularly the ones that manipulate enemy positions) can be used to clear certain maps in unintended ways. For example, [[https://youtu.be/aJ_ty58KXJI beating 4-4 with only Shaw on your team.]]
477* EldritchAbomination: Even as a veritable DeathWorld, Terra has a few standouts.
478** The Seaborn, a hive mind of LovecraftLite sea monsters who are constantly evolving and reproducing, with a seeming goal to assimilate all surface life into their fold. Them and their Leviathan gods were the reason for the Profound Silence that brought Iberia and Aegir to its knees, as well as why the oceans are considered untraversible.
479** The Collapsals or "demons" are unfathomable, extradimensional reality-warpers encroaching on the borders of civilization, who spread logic-defying corruption wherever they go and can manifest from something as simple as a victim being aware of them. It takes the best of Terra's forces to even hold them at bay, and the worst part is that there are seeming dimensional rifts that are constantly spewing out more of these things...
480** During ''Operation Originium Dust'', the MadScientist Levi Klitschko creates the Essence of Evolution, a horrific fusion of Originium and flesh that demonstrates inexplicable behavior and is described as not only defying all known laws of biology, but also being fundamentally antithetical to all other life on Terra.
481* EliteFour: Wei Yenwu, Emperor, the Rat King, and Eurill Pides are the four most powerful individuals within Lungmen due to their positions and authority they hold over their respective groups. They've agreed to a tentative peace with each other, though they sometimes disagree on how exactly to uphold that.
482* EliteMooks: While each enemy type has its own specific gimmicks, you could encounter even tougher and trickier enemies of each type as you proceed to the harder stages.
483* {{EMP}}: Some stages from Chapter 5 onwards feature Jammers, stationary devices emitting electronic waves that slow down airborne drones, disable their special abilities, and prevent them from attacking.
484* EpilepticFlashingLights: Happens for a short while in Operation 4-8. [[spoiler:As Amiya uses her {{empath}} powers to enter Jessica's mind, various images and colors quickly flash in the background.]]
485* EpisodeZeroTheBeginning: The prologue chapter is named "Episode 00: Evil Time Part 1". Within it, the very first cutscene of the game is also labeled "0-0".
486* {{Expy}}:
487** Marthe is a big-name brand of clothing originating from Kazdel, the FantasyCounterpartCulture to Germany, is extremely popular in Ursus, and their best-selling products are tracksuits. Sure sounds a lot like [[https://en.wikipedia.org/wiki/Adidas Adidas]]. In fact, even their [[https://gamepress.gg/arknights/sites/arknights/files/2020-02/2020%23marthe_InvertShadow.png logo]] looks disturbingly similar to Adidas' 3-stripes design, only inverted and having the shortest line filed off.
488** The Collapsals are clearly based on [[spoiler:Chaos Daemons from TabletopGame/{{Warhammer}}, being extradimensional invaders entering the world via a portal in the frozen north (with rumors of another portal in the far south beyond Sargon), corrupt the land around them in ways that seem to defy physics, and are continually fought off by the setting’s equivalents of Tsarist Russia and Imperial China]].
489* ExecutiveMeddling: InUniverse, the Chamber of Commerce in Kazimierz is shown to actively meddle in the affairs of their sponsored Coporate Knights during the Kazimierz Major, as demonstrated in ''Maria Nearl'', where the Plastic Knight is forced to use his sponsor's prototype armor [[spoiler:during his match with Blemishine, resulting in her figuring out the design flaws in said prototype and exploiting them to defeat him]].
490* ExtremelyShortTimespan: Amiya points out in chapter 7 that it has only been ''two weeks'' ago since their mission to rescue the Doctor from Chernobog. During those two weeks, [[spoiler:they made an agreement with the LGD, failed to rescue Misha, killed Skullshatter, then confronted and killed Frostnova, broke off the agreement again, and killed Patriot]].
491* FadingAway: How enemies, allies, and operators disappear from the field once their HP is depleted.
492* FakeLongevity: Farming materials to upgrade ''anything'' at all takes a lot longer than it needs to, and the AntiPoopSocking mechanics don't help.
493** While Tier 1 and 2 materials, denoted by their white and green borders, respectively, are easy to farm en masse, Tiers 3 items are on entirely new levels of rarity, which can cost upwards of several hundred Sanity just to get ''one''. Special mentions go to Loxic Kohls, Grindstones, Manganese Ores, [=RMA70-12=]s, Incandescent Alloys, Coagulating Gels, and Cystalline Components, since they cannot be crafted from cheaper materials.
494** Tiers 4 and 5 are a chore to collect, since many of them require huge amounts of the aforementioned T3 materials to craft. While one ''can'' occasionally get lucky and receive a T4 item as map drop, this happens rarely enough that crafting the items themselves are often quicker and more Sanity-efficient. T5 materials ramp this up to eleven, as they don't drop from anything and require tons of T4 items to craft. And if you're looking to promote a 5 or 6-star operator to Elite 2, you're gonna need a ''lot'' of these.
495** The T5 Bipolar Nanoflakes are particularly loathed by the playerbase due to how many strong operators need these, and the sheer amount of rare materials that go into crafting just one copy is just bananas; to further explain, it is the only T5 material from the initial launch of the game that only needs two unique T4 materials, only catch is that one of the two T4 materials needed requires ''two'' copies (in this case, White Horse Kohl), instead of only one of each T4 material required.
496** The new T5 Crystalline Electroassembly is probably just as worse as the Bipolar Nanoflakes. While there are currently not that many operators who need it (since it is released alongside Chapter 8, therefore only reserved for operators released during and after that update), it is also a material that both requires three different T4 materials ''and'' one of them needs two copies (Polymerized Gel). And to top it all off, LMD is perhaps one of the most annoying resources to grind for (see AdamSmithHatesYourGuts above).
497* {{Fanservice}}: It's still there for both male and female operators alike, which is pretty par for the course in an anime-styled gacha game. It is noticeably tamer compared to mainstream gacha hero collectors like ''VideoGame/FateGrandOrder'' or ''VideoGame/AzurLane'', though. The Coral Coast series of operator skins grants "swimsuit" outfits for some male and female operators, though. Yet even those are fairly tame compared to more popular gacha games.
498* FantasticAbleism: The conflict between Oripathy-infected (shortened to Infected) and non-infected people is a prominent detail in the world of Terra. The "Operation Originium Dust" event notably gives said conflict perspective through the eyes of people with zero prior history with it (i.e., the ''VideoGame/RainbowSixSiege'' Operators).
499* FantasticFirearms: Gunners are outright a kind of magician, and their weapons won't work for anyone else. All firearm propellants on Terra require both [[GreenRocks Originum]] and some training in [[FunctionalMagic Originum Arts]] to be able to shoot. Besides which, Terran bows and crossbows hit nearly as hard as guns (the average Terran being stronger than an elite military man from Earth noted for being strong even amongst the US Army Rangers, so cocking a bow that can punch through a bulletproof vest is a non-issue) and are much easier to access and use, which is why most Sniper operators use them.
500* FantasticRacism: Though the game focuses more on the conflict between Oripathy-infected and non-infected people, not all Ancient races get along with each other, which is also the case with nations, and some may be even outright hostile. Some notable examples:
501** The Sarkaz as a whole are highly marginalized and portrayed as selfish, cynical, and malicious, with most people and nations treating them as second-hand citizens at ''best'' or literal attack animals at worst. [[spoiler:This is the result of a millenia-old racial feud between the former Sarkaz, who were the original inhabitants of the planet as the Teekaz, and ''every other Ancient race'' who supplanted them and has a vested interest in keeping them from regaining their old power.]]
502** The Sarkaz and Sankta have an instinctive racial feud to the point where they regularly attempt to murder each other for the heck of it, and one of the only severe laws of the otherwise lax Laterano is that Sarkaz absolutely cannot be allowed to exist in it. [[spoiler:This is because the Sankta are actually a Teekaz race that fled the others' cruelty before being transformed by an ancient machine and allying with the Ancients, something the Sarkaz consider treason.]]
503** In addition to their infamous cruelty against the Infected, the people of Ursus are known to heavily look down on any non-Ursus races like Felines, and are brutally prejudiced against pretty much every other country imaginable, ''especially'' the Sami whom they treat as barbarians and constantly attempt to colonize.
504** Victoria heavily suppresses the culture and nationality of their sister country Tara despite having formally declared peace with it, due to Tara's history of conflict with Victoria and fear that their Draco royalty will one day retake the Victorian throne, to the point that Tara basically no longer exists.
505** The Aegir look down upon all surface dwellers due to being a HigherTechSpecies, although the ones that spend more time on the surface tend to be less prejudiced.
506* FantasticReligiousWeirdness: [=12F=]'s token and a few offhand lines in events imply that some religions in Terra are broadly identical to Earth's real life religions, with the most explicit sign of this being Dossoles having a rat version of Brazil's Christ the Redeemer statue, indicating that Christianity is the same with the the wrinkle that all Biblical figures are now animal people to be consistent with the setting.
507* FantasticSlurs:
508** "Devil" for Sarkaz, because hiring them as mercenaries is considered a DealWithTheDevil.
509** "Worm" for Pythia, because they're seen as cunning and deceitful.
510* FantasyCounterpartCulture: Every nation on Terra, present or past, is heavily based on an existing nation at some point in history, down to language, culture, and even historical figures or events.
511* FantasyGunControl:
512** Averted, though it's handled in a rather odd way. Guns are stated to be an invention from Laterano, where despite their proliferation, are strictly regulated, and firearm ownership requires several permits to be granted for an individual to purchase one. Without said permits, the most they can use are crossbows. As a knock-on effect, firearms are very rare outside of Laterano, and non-Lateranians that possesses a firearm typically got them illicitly via blackmarket traders for obscene amounts of money, crafted a similarly functioning alternative, or outright stolen them from other Sanktas.
513** As a result of the above, almost all firearm-wielding characters in ''Arknights'', whether playable character or NPC, are predominantly Sankta, with the number of playable non-Sanktas carrying/wielding firearms can be counted on one hand:
514*** Liskarm and Jessica, two members of Blacksteel, carry a pistol as their weapon of choice, and it is implied that the latter bought one with a large sum of money.
515*** Jackie carries a pistol on her person, but because she lacks the Arts apitude to even use it in battle, it mostly serves as an OrnamentalWeapon.
516*** The members of Team Rainbow, Ash, Tachanka, Blitz, and Frost all utilize firearms, owing to how they were an international counterterrorist squad prior to entering the world of Terra.
517*** The water guns wielded by Ch'en the Holungday were originally a non-lethal competition weapon meant for the Dossoles Warrior Championship. After Dossoles, Ch'en would later heavily modify the weapon to increase its lethality to be on par with standard firearms on the battlefield.
518** According to provided lore, Terran firearms do not utilize gunpowder as propellant, but each bullet is instead a quasi-miniature Originium charge, making the use of guns a form of Arts control in itself, which not many people are capable of. Several nations have been trying to find a way to work around this, most notably Columbia, as noted in Sesa's bio. The weapons development firm Sesa worked for was apparently on the verge of discovering a method to let even people with mediocre Arts talent to operate firearms, before a freak accident happened that caused the death of his brother, and the halting of the project. [[spoiler:His later archives also imply that Sesa himself may have killed his brother to prevent conflicts that may arise from Originium firearms becoming accessible for everyone.]]
519** "Originum Dust" indicates that Terrans are significantly stronger than Earth humans, with Tachanka barely able to string a typical Terran-made crossbow. Because of their superior physical strength, bows and crossbows made for Terrans have comparable penetration and stopping power to firearms, which is another reason why guns don't have as much proliferation.
520* FairyTaleMotifs: As written on the [[ShoutOut/{{Arknights}} shout-out page]], a lot of the Plaque furnitures directly reference fairytale literature.
521* FamilyThemeNaming: Nearl's family members all have the word for 'light' in them. (光)
522* FastForwardMechanic:
523** During operations, you can double the gameplay speed by tapping on a button. There's also an option to have this pre-enabled immediately whenever you start a mission.
524** In the base, you can trade in Drones to speed up the acquisition rate in Factories and Trading Posts.
525** Expedite Plans are used in the Recruitment feature so that you can immediately recruit an operator regardless of the remaining time.
526** Subverted with upgrading an operator's skill mastery in the Training Room, in which you are required to wait until the allotted time (up to a whopping ''24 hours'' for Mastery 3) has expired for an operator's skill to level up, with absolutely no way of speeding up the process; you can choose a trainer with a skill that naturally reduces the time a bit, but you can't spend anything to instantly complete the skill mastery process.
527* FictionalCurrency: Aside from tokens and shop credits, the main currency used in-setting is the Lungmen Dollar, or [=LMD=] for short in the global release. More exotic currency types extend, but are not limited to, Originium and Orundum.
528* FighterMageThief: Vanguards, Defenders and Guards are Fighters who take on enemies face-to-face; Casters, Supporters and Medics are Mages who uses spells to attack enemies or support allies; and Snipers and Specialists are Thieves who uses projectile attacks and more underhanded tactics respectively.
529* FightingYourFriend:
530** The finale of Chapter 3 involves [[spoiler:Misha fighting Rhodes Island and the L.G.D. while she's disguised in Skullshatterer's clothes. Amiya is well aware that it's actually her friend Misha in the previously-dead Reunion leader's image. Even Ch'en is hinted to be aware of the two girls' conflict as well, reminding Amiya to remember her enemies now, no matter how hard it takes]].
531** After an an entire chapter when Rhodes Island bond with [=FrostNova=] and her Yeti Squadron, in the conclusion of Chapter 6, [[spoiler:[=FrostNova=] vows to join Rhodes Island before standing as Rhodes Island's last trial in preparation for their battle against Talulah, because she's not long for this world. [=FrostNova=] is listed posthumously as a Rhodes Island operator]].
532* FlashbackEcho: In the prologue, the Doctor remembers a [[MonochromePast monochrome flashback]] scene of Amiya thanking them when she explains in the present time that they've been working together before. It's one of the earliest memories that they recover after waking up with amnesia.
533* FlatCharacter: The Integrated Strategies-exclusive operators. They got no backstories, [[TheVoiceless no voice actors]], their eyes are invisible (thanks to their hair, [[OneWayVisor visors]], or [[EyeObscuringHat helmets]]), and half of them got no name! And the cherry on top is, most of their designs are derived from generic Rhodes Island [=NPCs=] from the plot. That being said, a few of them make an appearance in Episode 8 (most notably Pith), Stormeye gets a cameo in Operation Originium Dust, and Sharp [[AscendedExtra plays a major role]] in Break the Ice.
534* FlavorText:
535** The item description for Tokens also contain quotes from their respective operators.
536** The descriptions for the [[NonCombatEXP Battle Reports]] make it very clear that they're really just video recordings, as one is stated to include an HD remastered version, deleted scenes and in-depth interviews with participants on both sides of the recorded battle.
537** The various purchasable costumes have their own flavor texts that display in place of a given operator's intro lines. Like real-world clothing ads, these typically describe the occasions for which they were designed.
538* ForebodingFleeingFlock:
539** In a loading screen showing a tornado-like storm Catastrophe, a large flock of birds can be seen in the sky, flying away from the city.
540** In the "Obsidian Festival" event, the Originium Slugs are agigated from the seismic activities near the Siesta Volcano, hinting at its nearby eruption.
541* ForegoneConclusion:
542** Because of "Code of Brawl" story details, a lot of things in the Reunion Arc's conclusion are spoiled by the event. To wit; [[spoiler:Talulah's aim to crash Chernobog on Lungmen is thwarted. the Rat King is still in good term with Wei despite Wei's action, because the Rat King's own scheme counteracts it. Ch'en, Swire and Yuhsia's attempt to integrate the slum properly into Lungmen Downtown succeeds]].
543** Similarly, the ending of the "Shadows of a Dying Sun" story arc is spoiled in the profiles of numerous Rhodes Island operators which specifically state they joined after the Londinium incident, confirming their survival. Not to mention, other evnts that canonically take place after the arc, show that [[spoiler:Kazdel failed to become a superpower or use the Shard Tower to destroy the world]].
544** ''Endfield'' trailers outright spoil the fact that [[spoiler:Terra is able to access a portal at the north pole which can transport people to Talos-II, implying that they also found a way to defeat the Collapsals]].
545* {{Foreshadowing}}:
546** The reason why Rhodes Island allied themselves with Lungmen in Reunion arc is because Kal'tsit is negotiating certain something from Wei Yenwu. It is until much later in Victoria arc that the thing is [[spoiler:a key belonged to his sworn brother, the scion of one half of Victoria's ruling houses, needed to open the catacomb where [[SwordOfPlotAdvancement a sword needed to crown Victoria's monarch]] is kept]].
547** In the "Children of Ursus" substory "Speaking in Riddles", there's a scene where Leto is having her injuries treated by the other members of the Ursus Student Self-Governing Group, and makes an offhand comment that "If that cop had run into kids like you, things would have turned out different." This doesn't recieve any further elaboration until the final substory, ''Before Spring's Coming'', where we learn "that cop" was [[spoiler:Absinthe's father, who was murdered by the out of control students at Peterheim Middle School]].
548** In "Near Light", it's mentioned in a throwaway news link that the Rose Paper Union is establishing a branch in Columbia. [[spoiler:It's revealed in the ending that the Union's head, Kain, has been overseeing this in order to consolidate Kazimerizian power abroad by getting a foothold in other nations' journalism to manipulate the populace the same way he manipulates Kazimierz and regards everything in the event as petty squabbling between has-been nobles who are missing the real goal of the Chamber of Commerce.]]
549** Estelle has a specific mutation that causes her to grow large horns uncharactistic of her Archosauria race. [[spoiler: Ifrit has a very similar mutation but taken so far that it's impossible to see that she was born a Savra without blood tests. Both turns out to be test subjects of human experimentation in an attempt to recreate gods]].
550** In Chapter 9, when Outcast comforts Janie over her [[InnocentlyInsensitive unintentional prejudice]] born out of her upbringing, Outcast claims that it is difficult to break free from collective consciousness of their society, and she made it because she left Laterano. It is revealed in "Guide Ahead" that the Sankta are connected with a HiveMind that makes them instantly empathize with each other, and that strains their relation with the Liberi who got emotionally left out of the Sankta's little world.
551* FourFingeredHands: The animations for "Lee's Detective Agency" and "It's Been A While" PV (Terra perspective), have all of the characters possess four fingers on each hand (this includes Xiaohei who normally have five fingers in his own world, is suddenly reduced to four after he is transported to Terra).
552* {{Freemium}}: Downplayed. The Monthly Card serves as this but it only gives daily supplies of sanity potions and orundums for a month, yet it still gives the paying user a greater edge over purely free-to-play users.
553* FramingDevice: "Mansfield Break" is framed as Muelsyse from Rhine Lab inviting Silence and Mayer to her reserved bar for a chat on how exactly Anthony Simon/Mountain broke out of Mansfield State Prison roughly four months before Silence came back to Columbia.
554* FreezeFrameBonus: Some of the animated promotional videos by Yostar contain short frames that can only be easily observed when played at slower speeds:
555** [[https://www.youtube.com/watch?v=wBB0OoQlXy4 "Untitled World"]] - [[spoiler:A huge explosion in a city, a field of flowers, a wall marked "Infection", the burning building on Chapter 4, Patriot making an appearance, etc...]]
556** [[https://www.youtube.com/watch?v=deiLxpx3s90 "Partial Necrosis"]] - [[spoiler:Patriot getting frostbitten from touching [=FrostNova=], Mephisto's flashbacks as a child, a distressed Crownslayer, Kal'tsit summoning [=Mon3tr=], etc...]]
557* FreudianTrio: [[TheSpock Texas]]-[[TheKirk Exusiai]]-[[TheMcCoy Lappland]] trio in the Trading Post. TheStoic Texas is constantly in feuding rivalry with the HotBlooded Lappland, tiring the former much faster. Exusiai acts as a middle ground and negates the morale penalty from, allowing the Trading Post to operate at peak efficiency.
558* FriendlyFireproof: Considering the mix between melee and ranged operatives in any given stage, it's probably a good thing that none of their offensive powers can harm each other. Amusing sights of this can include, but are not limited to, melee operatives being showered by Firewatch's [[DeathFromAbove Tactical Transceiver artillery strikes]], doused in Ifrit's fire blasts, or just being pounded on over and over again by friendly [=AoE=] skills. Given the need to funnel enemies into chokepoints some times and ''Arknights'' being a TowerDefense game, it's practically necessary that you hit the tiles where your melee operators are stationed. Unfortunately, enemies are also subject to this, which is especially evident [[StuffBlowingUp Infused]] Originium [[ActionBomb Slugs]].
559** Subverted, however, with Specialist operator Aak. While his normal attacks play this trope straight, his second and third skills have him outright shoot his teammates to grant both of them powerful buffs.
560* FunctionalMagic: The Arts functions as the magic analogue in this game. The most common are the Originium Arts, [[ShapedLikeItself which use Originium]], but there are still the more ancient forms such as that by utilized by Pramanix. At first, the Arts were only practiced by a few, but advancements in Originium technology allows otherwise untalented people to use it.
561* FunnyAnimals: Although they're outnumbered by LittleBitBeastly Ancients, those kind of Ancients do exist, if operators like Waai Fu or Spot are any indication. That being said, there have been no in-lore justification for this thus far, and those specific operators appear as they are was seemingly done for no other reason than to satisfy the CreatorThumbprint of their illustrator, [=KuroBlood=]. And then there's the unexplained cabal of seemingly immortal cartoon birds, such as Emperor, High Priest, and the Duck Lord. [[spoiler:More contents would eventually reveal those birds are Beast Lords, a race of intelligent animals with similar powers and longevity as a [[PhysicalGod Feranmut]]. They're separate from Ancients, including the anthropomorphic ones. Other Beast Lords revealed so far are Gawain the lion and Zarro the wolf.]]
562* FutureBadass:
563** The "Bloodline of Combat" skins show operators at the highest of their ability. For most this is a point in their past, but for quite a few (especially relative newcomers to the operator business) that peak hasn't happened yet. So the skins instead show hypothetical future situations, such as a future where Beagle is an Elite Operator, Eunectes took over the Rhodes R&D department from Closure, Greythroat participates in dangerous Infected rescue operations, and a number of others.
564** Some members of the Reserve Teams, such as Lava and Kroos, have been given alternate forms depicting the once-inexperienced newbies several years down the line after polishing up their skills and becoming well-respected operators in their own right.
565** Other operators outside of the Reserve Teams have also been given alternate forms that depict them as stronger operators after undergoing some growth or going through an event that forces them to fight differently, such as Nearl, Gavial, Texas, Executor, and more.
566* GaiasVengeance: It is revealed that the imminent eruption of the previously semi-inactive Siesta Volcano is caused by obsidian overmining; the obsidian is the local Originium Slugs' food and the overmining makes the slugs burrow deeper into the volcano to search for more sustenance. Not only the slugs mutate to adapt with their new molten habitat, making them more dangerous than ordinary slugs, [[DugTooDeep their burrows open up new volcano pipes inside the obsidian mine that disturb the magma chamber]]. This causes some musing from the Doctor that Oripathy was also man-made, which is supported by Eyjafjalla's thesis that Originium itself is the Catastrophe upon the world.
567* GameBreakingBug: [[https://youtu.be/yJklZwGTH_Y Surtr's buff is eaten by Ceobe, now she's undying]]
568* GameplayAndStoryIntegration:
569** Team Rainbow (Ash, Blitz, Frost, and Tachanka) have no nodes in the Archive Network because they aren't official Operators of Rhodes Island; their files can only be accessed directly from the Operator section after you've acquired them.
570** Vigil's relatively underwhelming combat skills are contrasted by his strong RIIC Base Skills, which matches his characterization of prefering non-violent means of dealing with matters where practical.
571** Passenger's initially underwhelming abilities that were later enhanced to more effective levels by the introduction of his modules and their upgrades show how much importance his equipment, which he personally designs and finetunes, has for his combat ability.
572* GameplayAndStorySegregation:
573** Newly-introduced operators typically play significant roles in their associated content updates. In practice, unless you've managed to get lucky with the gacha and recruited them, you won't actually be able to deploy them in missions, despite the fact that they're literally right next to you plot-wise. Blaze, Hellagur, Mostima, Schwarz, Skadi, and W are especially egregious cases of this, since they all get ADayInTheLimelight via their respective content updates.
574** The Doctor is absent for the majority of Episode 5's story in Lungmen (from 5-1 to 5-9) and the entirety of certain side-story events such as ''Grani and the Knights' Treasure'' and ''Code of Brawl'', yet the in-game missions and post-victory dialogue from the Operators act as if the Doctor is the one directing the fights there.
575** Generally, it's understood that new operators are "hired" onboard after they've made their debut. However, there are specific cases that are just baffling, such as Elysium, or frankly any of the 3-stars, who by their own admission are ''already part of Rhodes Island to begin with'' (and in Elysium's case, he is of the same level of seniority as Dobermann, since they joined at around the same time). Really, this is usually very egregious when it comes to the launch operators who are affiliated with Rhodes Island, who can be seen wearing their uniforms as they introduce themselves to you, so it really begs the question of ''why'' you're having to shell out money and precious resources hiring the employees you already have.
576** In fact, the entire Recruitment and Headhunting system seems to be a gameplay-only element, since it would make no sense at all to keep hiring the same people over and over again through the gacha, and it's never explained why those who are ostensibly always part of Rhodes Island such as Rosmontis (or Babel in W's case) can simply not be recruitable at all outside of a very specific two-week duration. At least in Nian's specific case, her limited availability can be handwaved as her WalkingTheEarth and only coming back to Rhodes Island once a year (even if she will not leave if you've actually recruited her), but for W and Rosmontis, there's no such excuse.
577** On that note, potential tokens are also not very well explained, since these are usually personal effects or keepsakes of specific operators that they should be giving to ''you'' (e.g. Silence's feathers), so it wouldn't be very logical if you can somehow obtain a truckload of them to give back to ''them'' as gifts. And even disregarding the implausibility of that, a given operator's stat growth and DP decrease when they go up potential levels are also never explained.
578** On the other hand, if you do have the operators in your roster, feel free to deploy them in any stage you can think of, even if in terms of story they haven't met you yet (or worse, are currently an enemy). Hell, some stages (notably in Darknight's Memoir and chapter 8 of the main story) are flashbacks and allow you to launch your team into battles where ''Rhodes Island didn't even exist yet''.
579** Like other gacha games of its kind, ''Arknights'' acknowledges the existence of other players. However, where the story is concerned, there's only the one Doctor, a.k.a. ''you'', and the others are simply disregarded, as are you in another player's game.
580** Story-wise, some operators in ranged classes like Casters or Medics are noted to be formidable physical fighters as well. Examples include Ceobe, Shining, and ''especially'' Gavial, who is regularly pointed out for her habit of picking fights with enemy units and using her medic staff as a blunt instrument. But since the game's class system is fairly restrictive, you'll never get to see any of it. The lone exception is Tomimi, a Caster (and Gavial's number one fangirl) who actually can switch from Arts casting to melee bashing through use of her skills. Gavial also {{downplay|edTrope}}s this in that she has an alternate version of herself, "Gavial the Invincible", who ''is'' a melee fighter.
581** The actual stages that you play through can at best be described as "inspired by whatever is going on during the story at that time." Fights against bosses in the story will often be small-scale duels involving three named people or so on either side trying to kill each other, yet the actual stage associated with that story scene will instead be your twelve-man squad against over fifty mooks plus a boss who insists on walking circles around the level before trying to walk through your blue base. It gets especially egregious during some events, [[spoiler:such as the various Kazmirez tournament event stories where what's supposed to be a tournament battle or battle-royale involving just the protagonist Nearl is instead the usual tower-defense game with your squad of operators against hordes of mooks. Another example is the Break the Ice event where the current chapter often doesn't even have any combat yet the game makes you play a stage in-between each story chapter just for the sake of having a stage in-between each story chapter. The Doctor doesn't even really get involved in most of the plot and combat related to it until halfway through the story.]]
582** Sankta are explicitly forbidden from wielding their guns against other Sankta or they will become fallen as per their laws. However, nothing's stopping the player from assembling a squad of gun-toting Sankta to fight Sankta enemies with no repercussions. [[spoiler:There is some slight leeway in that the "law" can exempt Sankta from falling even if they break it, but that happens under very specific circumstances and doesn't waive all instances of Sankta conflict with firearms.]]
583* GameplayAutomation: The Auto-Deploy feature works on a per-stage basis, thus requiring you to get the perfect rating (3-stars) for the stage first before this feature can be unlocked. It basically mimicks the order of deployment, skill usage and location for your operators so that the stage can be completed as smoothly as possible. However, there are some [[ArtificialStupidity limitations]] as well.
584* GatheringSteam:
585** 5 and especially 6-star operatives are mostly very powerful, but they also cost a lot of battle drills to level, money to do so, and metric tons of rare materials to promote and enhance. "MoneySink" doesn't come close to describing their upkeep cost. Their rarity also mostly precludes getting duplicates of them to turn into Tokens, which are used to reduce DP cost as well as enhancing their skills and talents. While they may be more powerful comparatively to more common operatives of the same level, their performance will require just as much effort to maintain and improve.
586** Non-passive Operator Skills take a while to be used, since they need to be "charged" or require a certain amount of skill points (SP) per activation, and such points are acquired differently depending on the skill type: attacking enemies, with each strike giving 1 SP, automatically charging 1 SP per second, getting hit by enemies for 1 SP each strike.
587** Certain operators like Saria and Astesia has talents that give them buffs up to a certain point the longer they're on the field.
588* GenreMashup: At its core, ''Arknights'' is a TowerDefense game with RPGElements, while the RIIC Base feature also introduces the [[ConstructionAndManagementGames Construction and Management]] genre in the mix.
589** Certain game modes or events mix the TowerDefense aspects with other genres. Examples include the {{Roguelike}} genre in Integrated Strategies, the RhythmGame genre in the LTTB April Fools event, the ShootEmUp genre in the Barrage Fortress April Fools event, and more.
590* GeoEffects: Some special tiles come with benefits or drawbacks:
591** Bushes prevent your operators from being targeted by ranged units (unless revealed by TrueSight).
592** Certain stages also feature Anti-Air runes (which boost the damage of units standing on it against airborne targets), Medical runes (which heal the operator standing on it), Defense Runes (which boosts the DEF of units deployed on it), and Specialist Tactical Points (which increase the shift force of operators deployed on it).
593** Heated Paths are volatile and periodically burn anyone standing on top of them, allies or enemies alike.
594** The BottomlessPits are holes in the map that mean instant death for enemies that fall in them.
595** Active Originium tiles hugely boost the offensive stats of anyone passing through them or deployed on them. However, the affected unit's HP is constantly drained under this effect.
596** Corrosive Grounds or Eroded Paths lower the DEF of operators deployed on them.
597** In Chapter 6, Originium Ice Crystals will periodically chill or possibly outright freeze nearby operators for 10 seconds. Don't let the visual effects of the energy blast fool you, their [=AoE=] effect has the same range as Texas's Sword Rain skill.
598** Originium Shrines, introduced in Chapter 7, will release a blast of energy, dealing 500 damage to all nearby units that ignores the target(s) DEF and RES. They have the same [=AoE=] range as the Originium Ice Crystals.
599* TheGhost: Dr. Atro (Anton in the CN version) from "Twilight of Wolumonde", who was a close friend to both Folinic and Mudrock and got KilledOffscreen. Logos from "Rewinding Breeze" too, since he's a [[SwitchingPOV viewpoint]] character.
600* GilliganCut: During ''Gavial: The Great Chief Returns'', Dylan the pilot makes small talk with Lancet-2 to stave off his boredom while watching over the crashed aircraft, mentioning that Gavial told them there was a scenic waterfall in the middle of the rainforest, and he'd love to go see it. Lancet suggests that the others may have headed there already, but Dylan insists that neither the Doctor nor the Operators accompanying them would ditch them to go and play around by the falls. This is immediately followed by [[spoiler:[[SubvertedTrope Inam showing up to deliver a message]]... right before [[DoubleSubvertedTrope we cut to the Doctor and the Operators accompanying them playing around by the falls]]]].
601* GlobalCurrency: Lungmen dollars (LMD for short) are generally accepted as currency by most nations in Terra because Lungmen's economically stable enough for its cash to remedy a recent financial crisis. However, it's brought up in Stories of Afternoon that very remote rural towns not in the nomadic city network only accept local coinage. For gameplay purposes, the game has local coinage as a story-only plot point and solely uses LMD in gameplay.
602* GoingCosmic: The game starts out in the main story by focusing on the conflict and discrimination that the Infected face as a demographic within various nations. The Side Stories and Intermezzi slowly reveal that it is far more than those societal issues that certain key characters wish to combat with Rhodes Island as there are several existential threats that could end the world of Terra if left unchecked.
603* GottaKillEmAll: Achieving a 3 or 4-star grading for a given map requires you to basically eliminate every single enemy that appeared on said stage. You don't ''have'' to kill them yourself, however, as certain maps with hazard tiles can do the job for you if an enemy lands on them. The primary exception to this rule are gift drones in the Kazimierz Major event, which are listed in the enemy count but are non-hostile and do not penalize the player if they are not destroyed.
604* GreatOffscreenWar:
605** Chernobog already fell at the hands of the Reunion Movement even before the start of the story (that is, when the amnesiac [[PlayerCharacter Doctor]] just woke up). The prologue and the first chapters take place in its destroyed landscape, while the next chapters had several characters referencing it as the "Chernobog incident" or some other variants along those words.
606** Ultimately, the Kazdel Matter as shown in "Darknights Memoir" is entirely off-screen. All we know about the civil war is that Theresis attempted to usurp his sister Theresa, Theresa was killed, Theresa's personal retinue Babel scattered after her death, [[spoiler:and its remnant formed Rhodes Island to propel her heir Amiya against Theresis]]. We only know this after everything's over when Hoederer and Ines found W half-mad out of grief from Theresa's death.
607* GuideDangIt: Reading stats can be confusing if you're only relying on the in-game values.
608** The Operators' Attack Speed (ASPD) and Redeployment Time stats are gauged in-game using words ranging from "Slow", "Slightly Slow", "Average" to "Fast". It's kinda odd for a parameter about speed and time not being measured in numbers. So if you're that type of gamer who got used to seeing numbers for RPGElements, then you'd need to look for in-depth character info about ''Arknights'' if you want to know the precise values of these parameters for each Operator.
609** This can also apply to the skill descriptions. For example, Exusiai's third skill, "Overloading Mode", has an additional effect from Level 4 onwards about some Attack Interval reduction which ranges from "Very minor", "Minor", to "Slight". Again, the game doesn't tell you the exact numerical values that these words represent.
610** Although it may not seem obvious at first, the RES stat is actually measured as a ''percentage'' value (out of 100) and not as a simple numerical value that HP, ATK, and DEF is measured as, even though the numbers themselves do not indicate this. This can be easily discerned by looking at the stats of a a Supporter (barring Bard Supporters) or Caster operator in the Operator Management menu; one may see that the gray bar for their RES is a little longer than the bar representing their DEF.
611** Enemies have their stats ranked by a letter grade (from D to S) instead of the game giving you numerical values, which makes figuring out just how tough they are an estimation at best without looking it up. Furthermore, some of the grading given to enemies is inconsistent (like how Big Bob and the Senior Armed Militant both have 800 DEF, but the latter has an A in DEF while the former has a B). Another boss example is the difference between Pompeii and Patriot - Pompeii's RES of 70 is labeled A, while Patriot's RES of 45 is labeled as S[[note]]This likely refers to Patriot's RES of 90 in his first phase, though[[/note]].
612** Saria's third skill heals allies in a wide range by a certain percentage. This sounds already nice in the in-game description, but what it ''fails'' to mention is that this is applied ''per second'', which causes many beginning Doctors to assume this percentage is what is given over the entire duration of the skill. In practice, this means that Saria can quickly heal anyone back from the brink of death - despite the per second application not being mentioned anywhere in the game itself.
613** From a lore perspective, the game can be rather inconsistent in determining whether an operator's faction affiliation is displayed as Rhodes Island or their home nation. For any operator skills or talents based on character factions, such as Skadi and Andreana's talent, this can result some confusion towards players; for example, Skadi and Andreana's talent grants passive buffs to all operators affiliated with the Abyssal Hunters; however, the game considers Andreana to be affiliated with the Abyssal Hunters (meaning she will receive the buffs), despite the fact that her profile lists her affiliation as Rhodes Island. A later update released alongside the Who Is Real (CN servers) and Mansfield Break (Global/EN) event revamped the Network Archives and changed the faction of most operators affiliated with Rhodes Island to their home nation (i.e., Phantom and Skyfire's faction now being displayed as the Kingdom of Victoria instead of Rhodes Island). In addition, some operators became part of a "subfaction" of an existing faction, such as Siege and Indra now being affiliated with Glasgow (a subfaction of Victoria) or Blaze and Rosmontis now being affiliated with Elite Op (a subfaction of Rhodes Island). As the game goes on, expect the introduction of more factions to lead to the recategorization of existing operators.
614** Even after the aforementioned upgrade with Network Archive, Gladiia's base skills are especially elaborate, even for the standard of elaborate base skills' coefficiency like Rosmontis and Whisperain's skills. To wit, not only is her second skill anti-synergistic with several other skills, but both her skills take into account other Operators ''not mentioned anywhere within the skills themselves'' - [[spoiler:such as Blue Poison, Deepcolor, Whisperain, and Weedy]]. Both skills also ignore [[spoiler:Skadi the Corrupting Heart, because her voicelines imply that the Abyssal Hunters [[SoleSurvivor no longer exist]] in the circumstances that create this version of Skadi]]. This likely will become a subject of further recategorization as more story events drop in the game.
615** The effectiveness of shift skills (those that push or pull enemies). The amount the skills will move enemies is expressed in vague terms like "slightly", "moderately", and "significantly." To make things worse, enemies have a ''weight'' associated with them which will modify how much they'll move. And while the weight for some enemies are intuitive (larger enemies will be less affected), some are less so and this stat is hidden. The weight stat was added to the enemy info screen later at some point, but the shift mechanic still remains mostly ambiguous as to how it works.
616* GroinAttack: The [[MetalSlime Crying Thief]] in ''Mizuki & Caerula Arbor'' quite likely performs this, as his attack is a kick that instantly stuns the target Operator.
617[[/folder]]
618[[folder: H-M]]
619* HappyHolidaysDress: Some operators receive themed outfits depending on the given holiday such as Christmas or New Year.
620* HardModePerks:
621** Generally, the harder the map is, the more EXP, LMD and additional loot are awarded.
622** Choosing to play on harder difficulties in Integrated Strategies grants you bonus score towards the reward pass. Compared to the other Integrated Strategies modes, ''Expeditioner's Joklumarkar'' actively incentivizes playing on higher Braving Nature levels by offering additional benefits such as extra stats, more starting resources, and even upgrades certain collectibles to be more effective.
623* HealingFactor: Medical Runes passively restore the HP of Operators deployed on them.
624* HeartbeatSoundtrack: Heartbeats play in the background just as the Doctor is about to regain conciousness in the prologue.
625* HeavilyArmoredMook: Ranging from enemies that just have heavy armor, or armored variants of existing enemies; usually, Arts will generally be the go-to against them. The [[MechaMook Machina]] are an entire subclass of enemies consisting of armored weapons and the like, which are as a whole extremely resilient to physical damage, but severely weak to Arts.
626* HelloInsertNameHere: The name you input for the [[PlayerCharacter Doctor]] at the start of the game is used frequently in text dialogue.
627* HerdHittingAttack: AOE Operators are specialized on this. Certain 6-star Operators are also capable of this through skills.
628* HighlyConspicuousUniform: If somebody in Terra is affliated with a certain organization, expect their uniform to contain a sigil or logo. Sometimes ''[[SigilSpam a lot]]'' of sigils and logos, such as most Rhodes Island personnel, whose uniforms typically contain several instances of the emblem, the name of the organization, or both. Some characters can have a logo on their weapons as well, such as Patriot's shield.
629* HolyHalo: People of the Sankta race have glowing yellow halos above their heads, since they are based on Abrahamic angels. Exusiai isn't particularly fond of hers as she can't wear hats because of it.
630* HornedHumanoid: The Sarkaz, being based on demons, make up a vast majority of this among Rhodes Island operators. Other fantastic races like the Oni, Draco, and Vouivre have horns as well as they are based on the Japanese demon, western dragon and wyvern respectively. Animal races like the Caprinae, Elafia and Forte, being based off caprines, deers and bovines respectively, also have horns (and in the case of the Elafia, antlers).
631* HourOfPower: Played straight with most operators, since their buffs run on a (often short) timer.
632** Played less straight with certain operators who possess skills that are described to have "Infinite" duration, even though the bar underneath their health meter still visibly diminishes. However, this is purely visual, and even if it empties out (in half an hour, roughly) the skill will remain active. Even activating the skill again usually just replays the animation without doubling up on the effects. (There are some exceptions, like Code of Brawl's terminals, which do allow you to get multiple instances of the effect.)
633* IdiosyncraticEpisodeNaming: Several stage names in the events are usually following a theme based on the events.
634** The main story chapters' titles beside the first and last are [[MarketBasedTitle medical terms in the original Chinese]];
635*** Episode 2, Separated Heart: Twin Birth.
636*** Episode 3, Stinging Shock: Resuscitation.
637*** Episode 4, Burning Run: Acute Fatigue.
638*** Episode 5, Necessary Solution: Targeted Therapy.
639*** Episode 6, Partial Necrosis: Ditto; Partial Necrosis is a medical term.
640*** Episode 7, Birth of Tragedy: Fetal Affliction.
641** The extra stages in "Grani and the Knights' Treasure" are ShoutOut to TheWestern movies' titles.
642** "Heart of Surging Flame" story stages are named after Music/{{Queen}}'s song titles.
643** "Code of Brawl" stage names for the main story are time stamps indicating the time that the story section of that stage takes place, since the event itself all takes place over one night.
644** The stage names for "Maria Nearl" are the name of the major corporations that sponsoring the Kazimierz Major, with the last story node representing the corporation oligarchy that controls Kazimierz's capitalism as the whole - General Chamber of Commerce.
645** All the EX stage titles in "Guide Ahead" are named after sweets, denoting the Laterans' SweetTooth.
646* IdleAnimation: Certain operators have idle animations when they are assigned in the Base. A few even have these during missions when they're not attacking anything, such as [=FEater=] re-adjusting her [[PowerFist giant arms]].
647* ImprobablyFemaleCast:
648** At its current state, the playable cast is ''heavily'' skewed towards female characters. Additionally during the Main/Side stories, most of the plot-important protagonists and supporting characters are predominantly female. Even at the start of the game's release, only ''9'' out of the 84 operators in the initial release are male, with only one of them being a 6-star rarity while none of them are of a 5-star rarity until Flamebringer and Executor's debut.
649** The developers seem to be aware of this and have been steadily introducing more male operators, though the ratio of newly-introduced females still far surpass that of the newly-introduced males. Notably, it is ''very rare'' for a male operator to have the privilage of debuting as a 6-star operator[[note]]the total number of male 6-stars in the game has only just recently hit 10 with the debute of Lee, and out of the ones that debuted, none of them are of the Vanguard, Sniper, Defender, or Medic class[[/note]], with most of the male operators released being of a 5-star rarity or lower. Interestingly, the Supporter class had the longest period of time out of the eight classes without a male member until the introduction of Gnosis, more than ''two years'' since the release of the game.
650* InsurmountableWaistHeightFence: Every ground enemy who's seen a roadblock will just shrug and try to find another way around to reach the blue base, without pausing for a second to consider nudging it out of the way, climbing over it, or simply bashing it to pieces. Keep in mind, they ''can'' attack roadblocks, but only those placed directly on top of them, which even the weakest of mooks can smash to bits in as little as three hits.
651* InterfaceSpoiler:
652** [[spoiler:Skadi, Specter, Blue Poison and Deepcolor don't seem to have any relation to each other at face value. However, the inital version of the Network Archives prior to Mansfield Break groups the first two together under the "Abyssal Hunters" tag, and puts the other two ''right'' next to the Abyssal Hunters group ala other Operators who are related but not explicitly part of a group (like Lappland & Penguin Logistics), pretty much giving away their shared origins from the Abyss/Deep. Glaucus, who was added later, is also very close to the group (if not as much as Blue Poison and Deepcolor) and also strongly implied to be involved with them.]]
653** In the English localization, [[FacelessGoons Skullshatterer]] is referred to as male in both cutscenes and his unit profile, yet curiously the stage description for 2-10 [[SamusIsAGirl refers to him with female pronouns]]. [[spoiler:While this was probably just a mistake as Skullshatterer is indeed male, it does foreshadow Misha TakingUpTheMantle after his death]].
654** The characters' File numbers include an acronym of the faction that they're affiliated with (e.g. [=RL03=] for Ifrit of Rhine Lab, [=PL02=] for Texas of Penguin Logistics, [=R001=] for Amiya of Rhodes Island, etc...) But the file numbers of the Doctor ([=B101=]), Kal'tsit ([=B003=]), and W ([=B214=]) spoil that [[spoiler:they are affiliated with Babel]].
655** Several characters that first appeared as [=NPCs=] had their portraits adorned with the Oripathy Health Monitor bands that Rhodes Island issues to its operators, and they became playable after a time (La Pluma's portraits throughout the Dossoles Holiday event sport the RI Health Monitor long before she ever joins us, and at least one other character in Chapter 9 that is not part of Rhodes Island is shown wearing the health monitor on their portrait as well).
656** Lava The Purgatory's base ability affects alternate operators, which in the description has a clickable tool-tip telling you who they are. During the ''Who is Real'' re-run, if anyone isn't keeping up with the CN side of things, spoils that someone is getting an alternate operator, despite not being available until a future event.
657* ItemCrafting: Made possible with certain facilities in the RIIC base:
658** Factories passively produce items after time intervals, but they require an operator to progress.
659** The Workshop allows some materials to be crafted into others. While an operator's presence is not ''mandatory'' for this process, it does enable the creation of "byproduct", which can result in additional instances of the crafted item, a partial refund of the materials used, or sometimes just miscellaneous items. Rarer materials also require LMD.
660* ItemFarming: Promoting operators and raising their skill levels require items that drop from campaign missions. This is made easier by combining low-tier items into high-tier ones in the Workshop, and the in-game store sells random low-tier materials for credits (which refreshes daily).
661* ItOnlyWorksOnce: Stun Generators in certain maps can only be used once all throughout the mission. It's because their EMP Blast skill self-detonates the generator upon activation. Some operator talents also only work once per map even if they're redeployed, such as Blaze's '''[[MagicalDefibrillator Emergency Defibrillation]]''', as are few skills.
662* ItsRainingMen: Operators are deployed this way during gameplay. Instead of walking into the battlefield, they are literally tossed down onto it, sometimes [[FacePlant landing on their faces]]. Blaze in particular ''loves'' this kind of DynamicEntry, often jumping out of her deployment craft from at least ''300'' meters up in the air. On the enemy side, certain unit types also deploy in like this, most notably the Reunion Airborne Soldiers and Ursus Guerilla Siegebreakers.
663* JerkassHasAPoint: Oripathy isn't just a disease, it's a potential biohazard and there's a good reason for segregating the Infected. ''Originium Dust'' shows that when an Infected dies from Oripathy (as opposed to dying from injuries or other illness), the corpse disintegrates into dust which can cause secondary infection. The corpse needs to be sealed and quarantined before the dust spreads and causes bigger problems.
664* JigsawPuzzlePlot: Since not everyone gets to shine in the main story or limited-time events, the individual backstories of each character are scattered in several areas, requiring players to connect the pieces to understand their plotlines.
665** The Operator Profile serves as their basic biodata, while Archive Files are more detailed reports that are unlocked once certain Trust thresholds are reached for that operator. The profiles tend to drop world-building references that often aren't immediately visible, until later events put them under the spotlight.
666** The voice lines also serve as supplements, such as revealing more of an Operator's personality and their thoughts about another specific character.
667** Then there are the subtle FlavorText that can only be read by viewing an Operator's Token description.
668** The loading screens that appear just after starting the game reveal some general backstory and key concepts existing in the world of Terra.
669** Just about all of "A Walk In the Dust" is one of these, because the plot jumps around over a period of 22 years dealing with Kal'tsit's seemingly random wandering and involvement in multiple conspiracies in Ursus, Sargon, and Victoria.
670* KarmaHoudini: There's no closure to the nameless "Bank Manager" in the event Come Catastrophes or Wakes of Vultures, despite being a driving force for why the people in its setting are destitute and is painted as a HateSink. Even during the leadup to the climax, nothing is done to her even when the characters had the chance and afterwards, she's effectively dropped from the story.
671* KansasCityShuffle: During ''Lingering Echoes'', Dame Gertrude has [[spoiler: hidden Arts amplifiers]] planted throughout the Afterglow concert hall, which would [[spoiler: cause mass infection and death across Vyseheim if Ebenholz and Kreide were to perform]]. Czerny, however, easily uncovers them during a search of the building, and even mocks her for how obvious her tampering was. It's only once the concert's already underway that he realises, with growing horror, that [[spoiler: ''the building itself'' is a giant Arts amplifier]].
672* LaResistance:
673** The Reunion Movement is composed of oripathy-infected people who view the discrimination against them as systematic oppression. As such, they seek to eradicate the system entirely, even through violent means.
674** Patriot's Ursus Guerrilla and its offshoot, [=FrostNova=]'s Yeti Squadron, are the resistance movements against Ursus Empire's oppression and death camps against the Infected. When they met Talulah during one of their guerrilla, they joined the Reunion because of their shared goal.
675** According to Dobermann in "Stories of Afternoon", the country of Bolívar is plagued by numerous resistance factions that raise up because [[FullCircleRevolution the previous freedom fighters end up oppressing other people in the end]].
676* LanguageDrift: The ''Rainbow Six'' crossover implies that Terra's languages are similar to Earth's languages up to a point before they started diverging in different directions. Occphen comments Team Rainbow sounds like they're speaking antiquated Victorian (Terra equivalent to English) and Tachanka has some difficulty reading an Ursus book because even though Ursus and Russian share the same Cyrillic script, the former has several unspecified linguistic differences. Out of universe, it's unclear how far this drift goes given how most foreign words retain the same meaning and spelling they do in real life.
677* {{Leitmotif}}: Certain Operators will have a theme play when they're deployed onto the field, which temporarily plays over any background music, ie. Sora has a upbeat idol tune and Ethan has a chiptune piece.
678* LeaningOnTheFourthWall: Sometimes the game blur the lines between the Doctor as an in-game character and as the player themselves.
679** The Doctor will never speak or have their own thoughts, not unless player prompt them to do so during a dialogue choice, even when there's only one option to choose from.
680** During a PV, just as the Doctor was about to lower their hood and reveal their face, the screen darkens instead and the players can see their own reflection.
681** During ''Obsidian Festival'' event, whatever the Doctor's favorite band is always chosen by the player.
682** [[spoiler:The Sarcophagus seems to only work on the Doctor's race and not anyone else as Mephisto had to find out the hard way. Essentially, anyone, but the Doctor will be reverted back to the animal they were based on, albeit mindless. As such, implied that the Doctor cannot be reverted because they have no animal to be based off on, just like the player in real-life: a human, not an Ancient]].
683** [[spoiler:Ines during ''Darknights Memoir'' mentioned that the Doctor is the only thing alive on the battlefield and that she is stuck with the feeling she will always be a pawn on a chessboard. Most likely, referring to the player as a real-life figure in contrast to the playable operators that are virtual characters]].
684** [[spoiler:During an exchange between Kal'tsit and the Doctor in chapter 8, she mentioned that the Doctor have a chance to leave and can turn back after hearing the fate about the Sarcophagus research team. All they have to do is to is to disconnect themselves from PRTS, then everything will disappear, no longer having to log onto Rhodes Island information library ever again. The implication is that, the player can leave the game if the story ever became unbearable]].
685** [[spoiler:In the secret ending of chapter 8, 12F and the Doctor have a fairly lengthy conversation about the Doctor and their characteristics as a person. Long story short, 12F told the Doctor that they always have a choice even when it seems the game just pushes them along with barely any prompting, and yet here they are still. This indicates that the player have a choice in either continuing the game to see the story or leave the game]].
686* LetsSplitUpGang: In Operation 4-6.
687** Amiya, the Doctor, Ch'en and Hoshiguma along with their respective backups from Rhodes Island and Lungmen all meet up in the deserted city's entrance for their mission of retrieving Frostleaf's group, but the rescue team itself eventually got split up for the following reasons. Fortunately, they all went back to their respective homes after this mission was over.
688** Ch'en [[spoiler:heard Talulah's voice in the distance]] and went off alone in a certain direction, ignoring the rest of the party, while the remaining ones got ambushed by some Reunion forces, so Hoshiguma and her men voluntarily separated and formed a defensive line to prevent any threats from crossing.
689** The Rhodes Island team then proceeds in the city's center to continue with the search-and-rescue operation.
690* LevelCap: If they're regularly fed with battle drills, all operators will soon hit a soft level cap, at which point they can no longer be improved unless promoted. Promotion resets their level to 1, further increases the level cap, while retaining their current stats in addition to whatever benefits going Elite might bestow. Operators of 4 to 6-star rarity can be promoted twice, up to Elite 2, while 3-star units can go Elite once. 2-star or lower operatives cannot be promoted.
691* LevelGrinding: Made possible with the Tactical Drill missions that reward [[NonCombatEXP Battle Plans]]. These missions are open everyday, but the only limitations that would prevent, or slow you down from endlessly grinding levels are Sanity and [[MoneySink LMD costs]].
692* LevelUpFillUp: Your Sanity is fully restored every time your Player Level increases.
693* LimitedMoveArsenal: An operator can only bring one skill in missions, and these can be configured on a per-squad basis, or by selecting which among the given skills will be labeled as the "Default".
694* LiteralMetaphor: That rumor about the Knights' treasure opening only to "those with the pure bloodline of the Kazimierz"? It refers to a triggered mechanism by the key, which had to be literally soaked with the holder's blood.
695* LittleBitBeastly:
696** Called "Ancients" as a whole, they are further subdivided according to the animals they resemble. Ancients make up most of the population in the world of ''Arknights'' and have a higher risk of being infected by oripathy. A majority of these "Ancients" sport animal ears on top of their heads, not unlike an AnimalEaredHeadband, with implications that they don't have humanoid ears where we would normally do (though some do have two pairs of ears like Steward, Nearl and Franka). And it's not just their extra ears, the animalistic traits can also manifest in other body parts such as their hair (Lupo) or tails (Draco). In relatively rare instances they can become full-on animal-like humanoids, like Spot, Waai Fuu, or Mountain, or even just an intelligent animal in the case of Emperor.
697** This tendency toward superficial animal traits, along with some races like the Liberi and Aegir just looking like humans, is what allows Team Rainbow to fit in. Ash even has an alternate skin where she dons a fake set of cat ears and tail to blend in.
698* LittlePeople: The Durin race is the counterpart of ''Arknights'' for the Dwarf race in other fantasy settings. And as expected, they are also stout or smaller than the other races.
699* LoopholeAbuse: Operators with traits prohibiting them from being healed by allies (Such as Vulcan, Hellagur, and Utage) cannot be healed by Medics, and settle for either passive RegeneratingHealth or LifeDrain instead. However, this restriction only applies to ''direct'' heals and not passive/skill-based global restoration, making certain Medics such as Perfumer or Gavial extremely handy in keeping them alive.
700* LoveChart: Downplayed. While there is an official relationship chart that can be accessed in the menu, it isn't about romantic relationships. Instead, it graphs who among the Operators and [=NPCs=] are acquaintances with one another.
701* LuckBasedMission:
702** In particular, most high risk run stategies for Area 59 in Contingency Contract rely on [=FEater=] holding back the Avengers that spawn in the top lane. Her passive talent that allows her to dodge physical attacks is critical in avoiding being hit by the Avengers, and the proc chance is high enough that it can be consistently relied on. However, there's always the chance that you suffer some bad luck and an Avenger gets a hit in, instantly killing [=FEater=] and ending the run.
703** By their nature, Ceobe's Fungimist and Integrated Strategies hinge extremely heavily on you getting lucky with the card draws the game give you on start as well as the nodes you will run into later. If you're particularly unlucky, you can end up with three very bad starting cards (e.g. no ground units in HoldTheLine missions, no Vanguards to generate DP, no Defenders to hold back enemies, etc...), making getting through even the first stage a complete nightmare due to lopsided setups. And if the later card draws aren't much better, then you might as well bite it and end the run so you can at least reroll for a better start (and hope the RandomNumberGenerator won't screw you up later on).
704* MagikarpPower: The Promotion mechanic works wonders in unlocking the full potential of your operators, whether they may be via new skills, new passive talents, or expanded range, aside from the usual benefit of an increased Level {{Cap}} and stats. Elite 2 Promotions usually strengthen the buff provided by an existing talent, while certain Operators (i.e. Amiya, Myrtle, Istina) would have their sole talent unlocked only after being fully promoted.
705** The Module system can also serve as this depending on the Operator's prior prowess in gameplay, as they generally confer great stat boosts and an upgrade to their traits and talents.
706* {{Magitek}}: Originium powers much of the setting's technology and its magic system, so overlaps between the two are not uncommon. Reunion Casters, for example, are stated to pull double duty as battlefield mages and drone/animal handlers.
707* MarathonLevel:
708** The Annihilation Maps where you farm Orundum, which disable natural DP regeneration and pit you against ''four hundred'' enemies of escalating difficulty, in a game where regular stages rarely feature more than 100 enemies. In fact, the game doesn't expect you to finish it all the way (at least at first); rewards are handed out based on how many enemies are killed.
709** Some events like Darknights Memoir and Twilight of Wolumonde have "mini-Annihilations" that have similar conditions, albeit with a much lower but still high 200 enemies.
710* MarketBasedTitle: The game is known as 明日方舟 (''míng rì fāng zhōu'') in China, which literally translates to "Tomorrow's Ark". Hypergryph uses the title of ''Arknights'' (a portmanteau of "Ark" and "Knights" and a pun on the idea of "archknight") for all servers outside of China as an intentionally more straightforward title.
711* TheMaze: The interior of Mt. Mortica's cave in Dewville is likened to a maze by the narration.
712* MickeyMousing: For some of the stages, in particular boss stages, some events and spawns are timed to match the music at 1x speed in gameplay.
713** For CW-10 during ''Lone Trail'', the boss walks in when the vocals complete their countdown and declare that "We have lift-off", as part of the strong Space Program theme.
714* MindScrew: "Who is Real" centers around Dusk's godlike ability to create worlds within paintings and how the reality Lava's entourage is actually a manipulatable painting by Dusk, which leads to multiple ruminations on the nature of reality and how many layers there are to these kinds of painted realities. [[spoiler:It turns out the real reason Dusk is reluctant to leave her cottage is because her home is actually contained within ''another'' painting and is scared by the notion that she might disappear by leaving the painting. The event's ending serves as a MindScrewdriver by definitively revealing what was real and what wasn't.]]
715* MechanicallyUnusualClass: Some operators from specific class archetypes, such as Musha Guards, cannot be healed by Medics, save for Perfumer's indirect healing. Keeping them alive will require some micromanagement, but they make up for it with [[DifficultButAwesome powerful skillset and staying power if properly managed.]]
716* MeleeATrois:
717** In "Grani & the Knights' Treasure", the hunt for the treasure quickly escalates into 4-way battle between Grani's team vs [[OneManArmy Skadi]] vs the bounty hunters vs Reunion troops.
718** In "Mansfield Break", initially the factions that attempt to gain Mountain's custody from Mansfield are Rhine Lab's Ecology Department under Muelsyse and a proxy of Rhine Lab's General Department. Then Silence decides to rescue Mountain out of her personal justice. [[spoiler:Because of this, Saria who works with the Ecology Department, goes rogue on Muelsyse and hands Mountain over to Silence, despite continuing to maintain the fourth party front.]]
719** The second arc of the game implies this direction with [[spoiler:Rhodes Island and Eartha standing against Theresis's Military Commission's occupation of Londinium, all while a newly reformed Reunion under Nine makes their own moves to seize control from Theresis with the help of a captured and [[TheAtoner repentant]] Talulah.]]
720* MileLongShip: The Rhodes Island landship is shown to be leagues bigger than any vessel that exists in the real world (0.4 miles long). [[https://arknights.global/comic_detail?comicId=3&chapter=2 The first few pages]] of ''Records of Originium - Rhine Lab'' really help to put things into perspective, with a convoy of freight trucks being utterly dwarfed in comparison and a logistics operator suggesting that Saria take an onboard shuttle bus to get to the dormitories. The individual plates Mobile Cities break up into are even bigger.
721* MisplacedWildlife: Some operators belong to specific groups or hailed from regions that the species they are based on aren't native to, such as Istina being modeled after a South American spectacled bear, but hailing from the FantasyCounterpartCulture of Russia, and Ptilopsis' AnimalMotifs being found only in Northern Africa, but the operator herself is basically American.
722* MobileCity: "Nomadic cities" are this writ large, as major urban areas are now semi-mobile and move around given areas so as to avoid local capital-C Catastrophes when they strike; living in one place for too long has become rather dangerous and risk-prone, as [[spoiler:the immobilized Chernobog demonstrates in chapter one]]. It's also not made extremely obvious at first, but the Rhodes Island company's [[BaseOnWheels base is a somewhat smaller instance of these]] and is the very Rhodes Island from which the company takes its name. You get a brief look at it at the start of chapter two, and it features in update trailers occasionally. Based on the scale model recently released, Rhodes Island is 655m long * 355m wide * 197.5m tall.
723* MoneyGrinding: Cargo Escort maps provide thousands of LMD each (with a successful run of CE-6 granting 10,000 LMD), as opposed to most maps that provide only hundreds. There ''are'' maps with dedicated LMD drops, but they are nowhere near as effective as Cargo Escort, costing about as much Sanity per run in exchange for half the haul ''at best''[[note]]The most LMD you can get on a stage with dedicated LMD drops is 3,480 LMD for 21 sanity in AE11-9[[/note]]. So woe be to the Doctor who decided to promote someone to Elite 2, or feed a lot of XP to his/her operators on the day Cargo Escort is locked.
724* MoneyMultiplier: Getting three stars on a mission increases your LMD rewards by 20%.
725* MoneySink: Aside from the hoards of rare ingredients needed, promoting an operator typically costs exorbitant amounts of money, and that's not getting into the LMD investment to bring them up to the necessary levels in the first place. 3-star operators don't usually cost too much to promote, at a very manageable 10,000 LMD, but for those higher up the rarity chart, around twice or even thrice as much money is usually required to promote them ''once''. Six-star operators in particular demand ''180,000'' LMD to reach Elite 2, and that's still not touching upon the level up fee they would need to meet the criteria in the first place. 3 and 4-star operators can be promoted after some reasonable grinding, 5 and 6-star ones demand an investment of time, Sanity, materials, money, and then some.
726* MoodWhiplash: On the Global server, the tragic story of ''Lingering Echoes'' was followed a few days later by ''Ideal City'', a comedic, lighthearted BeachEpisode.
727* MookChivalry: If your operators are reduced to 0 block, whether via stuns or their own traits (e.g. Myrtle, Elysium), enemy melee units will leave them alone and just coast right past them, even if one more hit will do your guys in (e.g. Specter's post-S2 self-stun). They will do this even if the operators are poking them right in the face, as in the cases of Manticore and Ethan, though ranged units lack such scruples and will shoot at anyone they see.
728* MovesetClone: Played with. Operators in each class are divided into several subgroups that have generally the same play style, skills, and talents. While they are roughly the same basic kits on paper, some of these moveset clones may have unique traits about them that others in their own subgroup don't, such as Grani being a Charger Vanguard who behaves more like a defensive Centurion Guard than her actual class.
729* MultipleEndings: The Integrated Strategies game mode features multiple endings that can be obtained based on what actions are taken during a run.
730** ''Phantom and Crimson Solitaire'':
731*** Ending 1: Crimson Finale - [[spoiler:The canonical ending to the story, Shalem and the Doctor defeated and brought Phantom out of his brainwashing, ]]
732*** Ending 2: Ridiculous Comedy - [[spoiler:After rescuing Phantom and defeating the Big Sad Lock, the Mouthpiece appears before Phantom and Miss Christine.]]
733*** Ending 3: [[TheBadGuyWins Grand Opening]] - [[spoiler:Phantom, along with Shalem and Rhodes Island, confronts and defeated the Mouthpiece. However, the Troupe's master revived the defeated Mouthpiece along with other deceased members and reapply his brainwashing on Phantom once more.]]
734*** Ending 4: [[TrueEnding Silent Chapter]] - [[spoiler:The TrueEnding where Rhodes Island found and confronted the Playwright responsible for the Plays of the Crimson Troupe reveals that he has trapped everyone in a GroundhogDayLoop after the Mouthpiece's "ad-libbing" ruined his plans and kept everyone trapped in a loop until he could write a satisfying ending for himself. When he is later defeated and Phantom rescued, the Playwright reveals that the story and the events of "Phantom and Crimson Solitaire" has already gone exactly as he envisioned through the "revision". Rhodes Island rescued Phantom successfully, unaware that the Troupe and Playwright himself already planted a seed of the Troupe Master's brainwashing in Phantom that will successfully turn Phantom into their sleeper agent TykeBomb and fulfill the HappyEndingOverride that the Troupe Master loves to see.]]
735** ''Mizuki and Caerula Arbor'':
736*** Ending 1: [[CuttingOffTheBranches Precious Days]] - [[spoiler:The canonical ending to the story, Mizuki rescues Highmore after defeating her Seaborn form, and happily roasts the Seaborn flesh as a snack, to her humorous horror.]]
737*** Ending 2: [[DownerEnding Age of the Silence]] - [[spoiler:Mizuki sacrifices himself to try and stop Ishar-mla, but fails and dies. The Last Knight makes a futile attempt to fight Ishar-mla, and the Seaborn threat overruns all of Terra.]]
738*** Ending 3: [[BittersweetEnding Price of Peace]] - [[spoiler:Mizuki sacrifices himself to stop Ishar-mla and succeeds, becoming one with the ocean and pacifying the Seaborn threat permanently, but this comes at the cost of Mizuki's existence, and a heartbroken Doctor often visits the shore to mourn him.]]
739*** Ending 4: [[EarnYourHappyEnding Stella Caerula]] - [[spoiler:Mizuki ascends as Izu-mik, and becomes the titular Caerula Arbor, controlling all of the Seaborn to reshape Terra into a paradise. Mizuki is eventually reborn, and sees the new Terra that now coexists peacefully with the Seaborn.]]
740* MundaneUtility: In [[GrandStrategy Reclamation Algorithm,]] resources will have to actually be gathered. You can deploy harvester hubs, but sometimes you need to send Operators to speed up the process. So Mlynar's and Thorns' [[MasterSwordsman impeccable swordsmanship]], Surtr's SuperpowerMeltdown, or Eyja's horde-melting LimitBreak? Great for cutting down trees, mining stones and iron ores, and hunting wild animals for food.
741* MythicalMotifs: The Ancients aren't just limited to AnimalMotifs. Certain races like the Chimaera, Lungs, Dracos, Vouivres, Manticore, Oni, Sankta, Sarkaz, and Anasa are based on mythological and religious creatures. The Sui (Dusk, Nian, and Ling) are based of various dragons in Chinese mythology, and Skadi the Corrupting Heart is based on the Sirens of Greek mythology. Some Ancients whose races are animal-based are based off mythological versions of those animals, like Platinum and the Nearl family, who are Kuranta but are based off the Pegasus, or Fiametta, who is a Liberi but is based off the Phoenix.
742[[/folder]]
743[[folder: N-R]]
744* NecessaryDrawback:
745** Anti-Air Runes boost an operator's damage output, but with the downside of reducing their attack speed.
746** [[PowerEqualsRarity Higher-rarity operators boast high base stats]] with more skills and passive talents, but they also cost a lot of deployment points to become usable in the first place. On the reverse side, lower-rarity operators have lower deployment costs to compensate for the lower stats and fewer skills.
747** A lot of operators' skills have these for the sake of game-balancing, especially for lower-rarity operators. For instance, Cuora's second skill drastically increases her DEF (by 90% at max level), gives her Block-4 instead of Block-3, making her the only easily accessible Defender with this ability, and makes her regenerate 1% of her max HP per second. The only "drawback" is that while this skill is active, she stops attacking, but given her role, that hardly counts as a drawback.
748*** Surtr, a 6-star Arts Fighter Guard, has an insanely powerful skill 3 that boosts her range, damage dealt, enemies attacked, and HP drastically, all with infinite duration. Unfortunately, in addition to melting whatever you point her at, she melts herself; she has constantly increasing HP drain as the skill goes on, needing upwards of 8 Medics just to keep her active at maximum drain.
749* NewMeat: Several young operators who are recruited to Rhodes Island are assigned as interns. They tend to get assigned to Reserve Ops teams, along with previously civilian operators.
750* NoahsStoryArc: It's in the title; Rhodes Island is a landship that recruits exceptional animal people from all walks of life to brave disasters. In what-if situations where Terra gets 'flooded' by calamities, such as in alternate endings of "Mizuki & Caerula Arbor" or Kal'tsit's Bloodline of Combat skin, Rhodes Island becomes the last bastion of mankind against these threats.
751* NoAntagonist: The ''Ideal City: Endless Carnival'' side story unusually features no antagonistic forces, with all the tension coming from personal issues or environmental damage. Even the boss of the event is just representing robots trying to help Stitch get away from Gavial.
752* NoBodyLeftBehind: Infected people crumble to dust upon death, which can cause further infections. This is most notable in "Operation Originium Dust" where a major NPC is seen dissolving into [[TitleDrop Originium dust]] onscreen after his death.
753* NonCombatEXP: Your Operators don't earn EXP directly from stages. Instead, they need to ''watch'' Battle Records. In gameplay terms, Battle Records are consumable items that you give to operators, and you also need to pay some LMD to have the operators earn EXP and level up.
754* NonLethalKO: Should an operator run out of HP, they will be knocked out and disappear from the battlefield. They can be deployed again after they've had time to recover, albeit at a higher cost than before.
755* NonMammalMammaries: Hooo boy, where to begin? Many female operators are guilty of this, because of the race(s) they were based upon. Due to the game's predominantly LittleBitBeastly aesthetics, female operators still have breasts, despite many of them being based on birds, reptiles, or amphibians, who logically shouldn't have any. All Liberi, Pythia, Savra, and Archeosaur females fit this trope.
756* NonIndicativeName: The name that is formerly attributed to certain Guards and Defenders with high overall stats but lack the ability to be healed by allied operators (such as Musha Guards or Juggernaut Defenders) are called '''Enmity''' Guards/Defenders. However, "enmity" is a word that means showing antagonistic hostility; none of the operators who are classed as Enmity-type operators are shown to be mean or aggressive towards their allies and friends based on their characterization. Most egregious is Hellagur, who is considered an "Enmity" Guard, despite his profile and mannerisms portraying him as a [[NiceGuy friendly]] and [[CoolOldGuy cool old fellow]] pleasant to hang around with.
757* NoodleIncident:
758** How exactly the Ursus Student Group managed to escape Reunion's rioters and the Catastrophe that triggered the fall of Chernobog is completely unknown as both Gummy and Istina refuse to go into any detail about the group as a whole, with the latter stating that the Doctor would be better off not knowing. Given Istina's emotionally charged reactions, Rhodes Island has decided to forgo any probing lest they set off any triggers. [[spoiler:The revelation in 'Children of Ursus' proved to be the ''very'' good reason why they were very adamant about it]].
759** To Rhodes Island folks, the "Flame Demon/Diαbolic Incident" at Rhine Lab that led to Saria, Silence, Ptilopsis and Ifrit joining RI (and not all at once, either) is something of a mystery. All we know, all that Saria and Silence and willing to ''say'', is that it involved a devastating accident at one of Rhine's main facilities, that Saria had to [[DeadlyEuphemism "dispose of experimental subjects"]], and whatever happened, it soured what was seemingly a previously friendly relationship between Silence and Saria (mostly on the former's side). [[spoiler:Rhodes Island's Records of Originium - Rhine Lab manhua gives the complete story of the incident]].
760* NotActuallyCosmeticAward: Furnitures also provide Ambience Points for the Dormitory in which they are displayed in. These points help in increasing the morale recovery rate for operators resting in that dorm.
761* NotDrawnToScale: The chibi sprites for all operators are of roughly the same height, despite the potentially huge disparity between two given characters in-universe. Really, there's no other way to explain how the sprites of a 135cm-tall Shaw is just slightly shorter than Hellagur, who officially ''towers'' over her. Sometimes this isn't even consistent, with Durin and Myrtle's sprites being of different height even though they are both 131cm tall in their profiles.
762* NothingIsScarier: Ch'en and her agents wonder how the L.G.D. headquarters appeared so vacant, quiet and unguarded despite [[spoiler:having been taken over by Reunion in Chapter 5. As the agents inspected the place, one of them saw Reunion members running around but suddenly disappeared in a corridor, another agent reported hearing voices but found out no one else when he entered the room]]. Annoyed at these, Ch'en tells her group to cut the ghost stories and assist her to the rooftops where [[spoiler:Mephisto awaits for their arrival]].
763* NowYouTellMe: In the extra level cutscenes for "Grani and the Knights Treasure", Nearl writes to Grani about something important about her mission. In the next cutscene, which takes place awhile after the event's main story, Grani finally gets the letter, which turns out to be a warning about Skadi, who came to blows with her durring the event. Annoyed by the ''very'' late notice, Grani folds the letter into a paper airplane.
764* ObviousRulePatch:
765** In some maps, the player can place Roadblocks to force enemies to take a different path towards the blue base instead of, you know, buying time by forcing them to break those down. The thing is, you ''cannot'' place Roadblocks if doing so will obstruct the last possible path for the enemy, making it so that there will always be one route open for them to take.
766** With the release of Proviso, the description for Tequila's base skill '''Investment''' was updated to note that it wouldn't give 'defaulted trades' the LMD bonus it usually gave to orders of at least four Pure Gold. This was done specifically to prevent their skills from working together; since Proviso automatically replaces offers of three gold or below with defaulted trades worth at least four gold once she hits Elite 2, she would have effectively guaranteed that every order got the Investment bonus had it not been for this restriction.
767* OffscreenMomentOfAwesome: Happens in two separate incidents during Chapter 4:
768** Ch'en went off on her own trying to [[spoiler:find Talulah in the city]], leaving Amiya and Hoshiguma behind. But when Amiya went to her direction, she saw dead Reunion members everywhere, with only Ch'en still standing.
769** In Operation 4-4, [[spoiler:Frostleaf sent a DistressCall just as she, Meteorite and Jessica were about to get surrounded by Mephisto's group and the Yeti Squadron. When Rhodes Island arrived at the supposed scene, they saw signs of struggle, which implies that Frostleaf's group was able to hold their own. True enough, the three girls are still alive, hiding in the city's center square despite suffering some injuries]].
770* OhAndXDies: Operation 7-18 is titled [[spoiler:'Death of a Patriot', as everyone heads in to the battle knowing that Patriot will have to die in order for Rhodes Island to move forward, the more important questions being how much will it take for them to accomplish it and what happens after.]]
771* OnceMoreWithClarity:
772** Kal'tsit and Alty's CrypticConversation in the ''Heart of Surging Flame'' event gains some context when it was rerun, where several of the new Iberian operators (Andreanna, Thorns, Weedy, etc...) who have debuted since have their profiles talk about [[spoiler:Iberia's mass exodus of Aegirians, along with depictions of their mental connection with [[GeniusLoci the sea]]]].
773** Chapter 6 begins with [=FrostNova=] pledging to join Rhodes Island's cause. [[spoiler:The entire chapter is HowWeGotHere battle against the Yeti Squadron, and the circumstances that push [=FrostNova=] to her last battle to the death against Rhodes Island as [[OnlyTheWorthyMayPass her last contribution for Rhodes' cause]]. Cue the aforementioned pledge. She becomes a Rhodes Island's operator ''posthumously''.]]
774* OnlySixFaces:
775** The faces of characters illustrated by Huànxiàng Hēi Tù (e.g. Mostima, Exusiai, Lappland, etc...) are [[https://www.facebook.com/photo.php?fbid=2507872905981129 very visibly recycled]].
776** The characters drawn by TOKI (Franka, Liskarm, Meteorite, Skyfire, etc...) look a lot like each other.
777** Azling seems to have knack for drawing ladies with ''very'' tiny mouths and tired eyes (Absinthe, Flint, Robin, Tuye, Pallas, etc...)
778* OneSteveLimit:
779** You cannot borrow another player's support operator if you already have them in your current squad. No duplicates allowed!
780** There are three entities named "Executor". One is a Sniper of Laterano who uses a [[EveryoneCallsHimBarkeep codename]], another is Hellagur's [[ICallItVera weapon]], and the last one is (as of Dossoles Holiday) the official archetype name for Fast-Redeploy Specialists. However, Hellagur's sword is [[InconsistentDub inconsistently named]] in global version; in his profile, it's called "Kudarikiri" directly from his voiceline while the translation of his voiceline calls it "Decapitator".
781** When Lava gains an alternate unit version, that version is called Purgatory. However, they're effectively still considered a same unit like the aforementioned friend's support and can't be deployed together both in battle and in the base. The same would apply to future alter operators such as Skadi the Corrupting Heart, but the release of Texas the Omertosa eventually removed this restriction.
782* OnlyKnownByTheirNickname: In the "Operator" business of the world of ''Arknights'', going by a ''nom de guerre'' or callsign is very common, and the playable characters of Rhodes Island are no exception; most of the names you recruit them by are their codenames, and their real names are sometimes provided in their profiles, in the plot, or in secondary materials (and this is why some of the character names can seem a bit silly at first glance). For some, though, their codename is all they have, for any number of various reasons, and some just use their given or family names as their callsigns.
783* OurAngelsAreDifferent: The Sankta race have floating halos and non-functional wings made of light. Other that that, they're a normal humanoid race, and their hat is firearms, instead of anything to do with religion or goodness. While they *can* wear hats under their halos, it's very uncomfortable and a common joke among Sankta.
784* OurDemonsAreDifferent: Some of the Sarkaz race are based on demons. They have horns and pointy devil tails, and are both better at Originium Arts and more susceptible to contracting Oripathy. They also have a tendency toward strange rituals and unusual sorcery, and many Sarkaz are of subtypes associated with other types of monsters, like Wendigos, Vampires, or Gargoyles.
785* OurDragonsAreDifferent: Unlike the trend of using umbrella names to refer to most operators' races regardless of their cultural background, there are several different species of anthropomorphic dragons, drakes, and wyverns in-universe. From three separate factions, we have Reed, Ch'en, and Saria, who are a Draco, a Lung, and a Vouivre/Wyvern, respectively. There's also the Sui (Dusk, Nian, Ling, Chong Yue) who are individually based off of Chinese mythological dragons.
786* OurDwarvesAreAllTheSame: The Durin are a zig-zagged version of the typical fantasy dwarves. They are a short, tough people who are mindbogglingly skilled architects and mechanical engineers who have an intense love of alcohol. However, they generally don't seem to have beards beyond mustaches and tend to look almost childlike, and spend a lot of their time drunk and having endless parties, and their government is an open, pure democracy. In other words, they are a fusion of the industrious engineering genius of dwarves and [[{{Hobbits}} the egalitarian carefree lifestyles of Hobbits.]]
787* OurElvesAreDifferent: [[HiddenElfVillage Elves are an exceedingly rare race who keep their distance from most civilization]] due to extreme sensitivity to Originum. They are almost extinct, or at least very few are known to exist. They are so rare that Muelsyse is surprised that someone even recognizes her species.
788* OurHumansAreDifferent: All of Terra's LoadsAndLoadsOfRaces are sometimes referred to as "humans" as an umbrella term. This includes the race that resembles demons, the race that resembles angels, and the various LittleBitBeastly and BeastMan characters. Ironically, humans - as in, ''Homo sapiens'' - exist in the form of Team Rainbow, but they are outsiders from Earth.
789* OurVampiresAreDifferent: Vampires are a subrace of Sarkaz. While still living humanoids, they are nocturnal, blooddrinking, and pale.
790* PermanentlyMissableContent: Some story cutscenes (like the prologue scene "0-0") and miscellaneous dialogue (like Closure's introduction and RIIC tutorials) can no longer be viewed on the same account after the player has watched them for the first time. The only ways to see them again is to create a fresh account, or better yet, search their videos on the Internet.
791* PhysicalGod: There are hints that various regions and races on Terra have living gods that represent the "will" of that land. The Yan government has designated them as "Feranmuts" and has an entire government agency centered around containing their local god. Known Feranmuts include [[spoiler: Kjera for Kjerang, Kaschey for Ursus, the fragments of Sui (Dusk, Nian, Ling, and their siblings) for Yan, Alive Before Sunset for Aegir, the King of the Nachzehrer for Kazdel, and the Will of Sami for Sami.]]
792* ThePlague: One unfortunate side effect of Originium is that exposure may lead to Oripathy, a disease where active Originium assimilates with cells and turns them into more Originium until the organs are too crystallized to perform vital functions. It is incurable (though, with Rhodes' technology in particular, treatable and manageable depending on infection progression) and is theorized to have 100% mortality rate. Since living and dead Infected serve as vectors of the disease, many cities have taken measures to segregate them from the general populace, which has, as noted, led to [[LaResistance problems]]. One of the narrative thrusts of the game is helping Rhodes Island develop new treatments with an eye toward maybe, possibly, finding a cure.
793* PlanetOfHats:
794** Unlike other races, the Sankta race hails universally from the nation of Laterano. Most playable Sankta characters exhibit said nation's unique trait of firearms production by using guns and are classed as Sniper operators. The three remaining Sankta operators who don't use guns in gameplay still have a connection to firearms in their lore. Adnachiel only uses a crossbow because he hasn't finished paperwork for his gun license and his village specializes in producing bootleg gun parts, Mostima's token states she no longer uses her personal blunderbuss [[spoiler:which is revealed in "Guide Ahead" as the Laterano "Law" disowning her when she pointed her gun at her former team captain, becoming a fallen Sankta and losing the ability to use firearms]], and Arene's family studied heritage guns.
795** Durins zig-zag this trope. Whenever they show up en masse in stories, they're often shown playing around and chugging beer with the implication that most Durin societies are like this down to a tee. However, none of the playable Durins adhere to this: Durin spends most of her time sleeping (and prior to Myrtle's arrival, Rhodes Island thought being sleepy was the Durin hat), Myrtle comes closest but is more interested in helping out with fights, Minimalist is an avowed teetotaler, and Chestnut is completely dedicated to his work as a doctor.
796* PlanetTerra: The world that the game takes place in is called "Terra", and is for all intents and purposes modern-day Earth with a dash of future tech and fantasy races.
797* PlayEveryDay: There are daily log-in bonuses and daily missions that reward useful items. For the first week of play, there is an additional week-long log-in bonus that awards Cliffheart on the last day. Many mini-events tend to encourage this in general, offering significant incentives for the player to check in each day, such as free sanity potions, headhunting tickets, rare resources, and usually an exclusive operator outfit and article of furniture at the higher tiers.
798* PlayerHeadquarters: Rhodes Island Infrastructure Complex (RIIC) serves as this. It contains production workshops, trading posts, dormitories for your operators, and a host of other facilities.
799* PointAndClickMap: Missions are presented as nodes of a map.
800* PointyEars: One of the [[LittleBitBeastly physical traits]] associated with the Ancients, or races based on [[AnimalMotifs animals]] or [[MythicalMotifs mythological creatures]].
801* PopCulturalOsmosis: Following the English release of this game, a Google Image Search of "Lappland" would show you more of the ''Arknights'' character over the real-life location in Sweden. Ditto for searching "Ptilopsis", showing the character herself more than her namesake species.
802* POVSequel: Ceobe's Operator Record follows the same events as Gummy's segment in ''Children of Ursus'', only with the focus shifted from Gummy struggling with her lingering trauma from the Chernobog Incident to Ceobe and her [[ParentalSubstitute mother-and-daughter-esque relationship]] with Vulcan.
803* PowerCreep: Just have a cursory look at the [[GameBreaker/{{Arknights}} Game Breaker]] page and despair at how broken some units are, and the page itself isn't even up to date with the CN build. If the newest 6-star operator isn't horridly unbalanced, somebody at Hypergryph is not doing their job properly.
804* PowerEqualsRarity: Higher-rarity operators have higher level caps, more promotions and consequently, higher stats compared to the low-rarity operators.
805* PowerUpFood: Some Sanity restoratives come in the form of edibles, such as burgers, chocolates or cookies.
806* PrisonRiot: The ''Mansfield Break'' sidestory event is based around one of these going on, with most of the enemy units being inmates attempting to escape.
807* PrisonShip: Mansfield State Prison takes advantage of the technology used for [[MobileCity nomadic cities]] to serve as a land-based example. Most of the time, it can be found travelling deep within the badlands of Columbia. Dialogue during ''Mansfield Break'' notes that this is why, barring the occasional resupply trip, security tends to be so light; there's nothing but inhospitable wasteland as far as the eye can see, so a successful escape is effectively a death sentence.
808* PrivateMilitaryContractors:
809** Rhodes Island makes use of a few groups like this -- they have a small contingent from Blacksteel Worldwide helping them out (consisting of Franka, Liskarm, Jessica and Vanilla) and also make use of the services of Penguin Logistics (who aren't ''supposed'' to be a proper PMC, but their specialty in logistics in "danger zones" and the skills of their members make them quite handy in a fight) -- and their own security & defense force might qualify but they don't typically mean to use the Operations Teams like that. Rescuing the Doctor from their captivity(?) was meant to be a one-off thing, but it unfortunately gave Rhodes Island a new reputation as experts in fighting Reunion... and [[Characters/ArknightsOthers Wei Yanwu]] is eager to make use of those skills in defending Lungmen in a deal that Rhodes can't turn down following the events of Chernobog, transforming them virtually into a ''de facto'' PMC, even if legally they're still a medical company.
810** Blacksteel Worldwide is one of the more well-known security contractors in the setting. Aside from providing security work, they also take part in post-Catastrophe relief and operates a biochemical response unit. They seem to have close ties to Rhodes Island, given that four Blacksteel operators are currently under their employ.
811* ProductDisplacement: Oddly, when Cliffheart's ''[[https://gamepress.gg/arknights/skin/highlands-visitor Highlands Visitor]]'' skin made its way to the Global version, the artwork was altered to remove the WWF logos from her coat and bag, even though the outfit was still released as part of a cross-promotion with the WWF and is prominently labelled as such in game.
812* ProductPlacement: An interesting example, as the products in question are in-universe brands.
813** The skins that you can buy from shop, except for Rhodes Kitchen and Bloodline of Combat series, are Rhodes Island's in-universe sponsorship from those clothing brands. The splash art of the skins are the magazine photoshoots for each outfit's promotional advertisement.
814** In "Maria Nearl", the knights that compete in Kazimierz Major usually have sponsors. Expect the brand names littering the knights' armor and cape like a sportsman's jersey would. Maria is able to win an early fight specifically because her opponent is using a sponsor's prototype armor, and said opponent is dragging out the fight to show off thegear per his sponsor's request, which allows Maria time to figure out its flaws and exploit them.
815* ProlongedPrologue: The "Evil Time" arc makes up the game's prologue, as its entirety takes place in Chernobog, the starting area of the story. However, this arc is split into two parts, "Episode 0" and "Episode 1", with both episodes accounting for approximately 20 missions. Its only after Episode 1 when the protagonists finally return to their home base at Rhodes Island. Limited-time side story events such as "Grani & the Knights' Treasure" also require the player to clear the Evil Time arc, so a complete beginner with a fresh account has to sit through these 20 missions even before they get a chance to play these limited-time events.
816* ProtectionMission: Maps with Command Terminals turn into this. The terminals are stationary structures that can be damaged by nearby enemies. When they are destroyed, one Life Point is deducted, which also risks the 3-star rating for that run. The same applies for the Ursus Civilians in Chapter 8.
817* PunctuationShaker: Kal'tsit and Ch'en.
818* ThePurge: [[spoiler:In Chapter 6 Wei Yenwu uses the Reunion invasion of Lungmen as a cover for his specop units to purge the Infected inside the city.]]
819* PurposefullyOverpowered: 6-stars are the highest rarity units you could possibly have. They all have high stats, great abilities and passives. They are a cut above units of lower rarity, but have the [[NecessaryDrawback Deployment Points cost to match]].
820* RandomNumberGod: Aside from the typical gacha mechanic and [[RareRandomDrop item drop system]] which is given for this game's genre:
821** There are also RNG layers involved in the Recruitment feature, wherein Operator Tags are determined by chance (although they can be refreshed when you have an Office), the selected tags that remain in the end, and the resulting characters themselves.
822** The Workshop can produce "byproducts", or random additional materials. However, there's a visible rate at which byproducts appear, and that can be boosted by the assigned operator's base skills.
823** Even the operators' talents and skills can have RNG factors, such as [=FEater=]'s talent that gives her a chance to passively dodge physical attacks.
824* RareCandy: Make no mistake, there are ''a lot'' of rare things in ''Arknights'' that one will need at some point to raise an operator, but few match the sheer rarity of ''Chip Catalysts''. This is an item needed to craft Dualchips that are required to promote an operator of 5-star and above to Elite 2, at a rate of 1 Catalyst per 2 single chips, up to a total of 3 (4 for 6-stars) units. They are rarely given in tiny amounts as event prizes, or can be exchanged for using shop Vouchers at a rate of 90/1. Mind you, 90 Shop Vouchers translates to about 150 Sanity spent farming non-stop on a map that's not even open half the time. They're even harder to amass than LMD, but fortunately aren't typically spent in large amounts at once, either, with 5 star/6 star Operators needing only 3/4 respectively to promote them to Elite 2.
825* RareRandomDrop:
826** Missions have a chance to drop rarer materials apart from the regular drops. These can be checked on a per-stage/mission basis by tapping the Rewards icon before starting the mission.
827** Most missions also have an extremely rare chance to drop [[AndYourRewardIsInteriorDecorating Dorm furniture]]. These are called "Lucky Drops".
828* RealNameAsAnAlias: While almost every Operator uses a codename, a few go for this instead. Then again, some have excuses: for instance, Enciodas Silverash is a political figure and CEO of a major company, so he'd still be immediately recognizable even if he didn't go by "[=SilverAsh=]".
829* RedBaron: "Alter" versions of each Operator can be identified by having a title on the end of their regular name, such as Skadi the Corrupting Heart, Nearl the Radiant Knight, or Spectre the Unchained.
830* RelationshipValues: Called "Trust" in-game, which is increased simply by using a given operator often enough, or putting them in the base and collecting the daily Trust generation. Unlike most games, Trust has an immediate effect on gameplay in the form of flat stat bonuses that rise accordingly. As of current, Trust can't seem to decline, and actually goes way over 100%, up to 200% at max.
831* RescueArc:
832** The prologue and the first chapters (or collectively named as the "Evil Time" arc), where a rescue team from Rhodes Island was sent to retrieve the [[PlayerCharacter Doctor]] in the city of Chernobog.
833** Chapter 2 focuses again on another LivingMacGuffin - Rhodes Island is tasked by the L.G.D. to find Misha and turn her over to Lungmen, amidst fighting off the Reunion forces who are also after her. [[spoiler:It fails in the end when Reunion retrieved Misha after a successful ambush. The first half of the third chapter then involves Rhodes Island trying to rescue Misha again from Reunion. That ultimately fails as Misha is fought and killed as the boss of 3-8]].
834* RiddleForTheAges: Played in the best tradition of ''Film/PulpFiction'' in "Grani & the Knights' Treasure": [[spoiler:because of a TimeSkip that occurs near the finale, we never actually ''find out'' what the titular treasure was or why it was locked with a key that nearly drains a person's blood (or why Skadi was so interested in it until "Stultifera Navis", where the key locks the papers of the titular ship's designer), and in Big Bob's letter at the end, he even mentions how interesting it was but "that's a story for another time". All we know is that was valuable enough to get Bob & his group to Columbia and onto their own hops farm like they wanted, with some ''still'' left over for Dewville.]]
835* {{Roofhopping}}: To the surprise of the Rhodes Island rescue team escorting Misha, this is how Exusiai planned their evacuation procedure within the slums of Lungmen.
836* RooftopConfrontation:
837** The latter half of Chapter 2 takes place on the rooftops of Lungmen. Fittingly, this is the point where the player is introduced to [[BottomlessPit Bottomless Pits]] and the push/pull mechanic.
838** The final battles of Chapter 5 take place on the rooftop of [[spoiler:the L.G.D. Headquarters that was taken over by Mephisto and Faust]].
839** The final battle of Chapter 8 takes place on the very top of [[spoiler:Chernobog's Control Tower. A notable visual effect is that since they're fighting Talulah and her forces on the very outer edge of the roof, the roof will occasionally shake from all the chaos taking place and if the player uses Operator selection to tilt the camera on the right tile, the map will reveal Chernobog distantly below, obscured by smoke and haze.]]
840[[/folder]]
841[[folder: S-Z]]
842* SanityMeter: The Nervous Impairment mechanic introduced in "Under Tides" functions as one to fit the Lovecraftian aesthetic of Sea Terrors and Sal Viento. As Sea Terrors attack Operators, they will chip away at the meter and cause a massive amount of True Damage and stun them for a time when it's emptied. This can be countered with Iberian Emergency Aid Buildings on the map which will restore the meter when activated, or Wandering Medics.
843* SceneryGorn: Terra's landmarks are already devastated by both the Catastrophes and the riots caused by the Reunion Movement.
844** As seen on the in-game backgrounds and various promotional materials or videos, the landscape has already turned into a barren wasteland with gigantic Originium crystals looking like mountains.
845** The rescue mission in Chernobog shows a glimpse of what some Catastrophes look like (something that's also shown in loading screens). A giant funnel tornado looms over the city, spawning lightning in its "eye", while birds flee from it.
846** Chernobog is no longer inhabitable with all the destroyed and burned structures, as well as the protruding Originium crystals making it look like a warzone. In Chapter 4, [[spoiler:Mephisto even burned an entire building with the logo of Reunion on its front. Around it are several effigies made of crucified civilians. When [=FrostNova=] arrives, she freezes the building and surrounded vicinity, turning it into a different kind of scenery gorn]].
847* SchizoTech:
848** The level of technology presented in the setting varies wildly. A typical battle may see an operator wielding a handgun fighting side by side with operators armed with bows and spears, fighting enemy swordsmen who are dressed in modern tactical gear and accompanied by gun-armed drones. Because one usually needs to know Originum Arts to be able to fire most guns, ranged weaponry tends to involve bows, crossbows, and throwing weapons. Only Sankta seem to use firearms regularly.
849** Despite the high-tech setting, operators still have to watch [=VHS=] tapes to gain NonCombatEXP. Somehow these tapes are not reusable. Despite this, they have smartphone and touchscreen as seen in Chapter 3, when [[spoiler:Misha says her goodbye to Amiya through the phone before her suicide charge against Lungmen Guards]].
850** This comes to head in "[[VideoGame/RainbowSixSiege Originium Dust]]" event story. Team Rainbow go through a multitude of culture shock because while the technology ''looks'' similar to real life from the outside, everything uses Originium as power source so their real life knowledge is useless to operate or fix Terran appliances. They end up sheltering in place for half a year because they don't know anything about the world and they can't resupply their ammo and electronic batteries because there's no industry that caters to their equipment, until they're rescued by Rhodes Island. Even then, Rhodes Island can only rig Originium-based equipment in approximate replacements because it turns out Terra has different periodic table than real world (they don't know what [[https://en.wikipedia.org/wiki/Nitrocellulose nitrocellulose]] is). In the end, everyone gives up trying to understand each other's technology, and Team Rainbow [[GoingNative assimilates with the locals' way of life]] out of necessity until they return to Earth.
851** In a smaller note, Terrans consider HighFantasy's healing spell and potion as "science fiction" because magic/Originium Arts is a realm of science in-universe.
852** Despite the incredibly advanced technology necessary to create Mobile Cities, there's no global mapping, GPS, or satellite telecommunications systems, nor is there any other form of working space technology. This is because of an artificial barrier around Terra's orbit that distorts attempts to map the stars and prevents anything from reaching orbit. All long-range communication is line of sight or done through messengers. Even aircraft travel is relatively short-ranged because of a lack of global positioning data, and significant areas to the north of Ursus and Yan or south of Sargon are unknown.
853* SchmuckBait: Some of the nodes in the Integrated Strategies stages entice you into investigating an event more thoroughly in order to trick you into a gimmick stage with unique challenges.
854** The DamselInDistress scenario first appeared in Ceobe's Fungimist featuring a Cautus girl, then made a reappearance in Crimson Solitaire with the Chained Sarkaz Girl. Should you attempt to free them from their peril, they will leave the scene and let you deal with a bunch of strong enemies.
855** There are several scenarios that will pull you into a special fight with the Gopnik or the Duck King if you interfere with them.
856* ScienceFantasy: The setting is a melting pot of a modern-day world, ScienceFiction[=-level=] technology and AppliedPhlebotinum, and fantasy races and FunctionalMagic.
857* ScratchDamage: All attacks deal a minimum of 5% of the attacker's attack in damage. Thanks to how the damage formula works, this means your attack needs to be at least 1.05x that of your target's defense to deal more than scratch damage for physical attacks [[note]] any less and attack-defense would be lower than 5% of attack, such as 1.04-1<0.05 [[/note]], and any Arts resistance above 95% is useless unless some kind of RES debuff exists. There are exceptions to this, such as Projekt Red, Aciddrop, Ifrit, Surtr and Goldenglow, who cannot deal this in any way because of their talents [[note]] Project Red and Aciddrop's talents flat out state that each of their attacks guarantees a certain percentage of their ATK, Ifrit's RES debuff prevents ScratchDamage from her (and any other Arts attacks that land on the enemies in her range) outright, and Surtr and Goldenglow's RES ignore talents have the same effect as Ifrit's RES debuff, but only for themselves [[/note]].
858* ScunthorpeProblem: The custom profile message and custom squad name features leave a lot to be desired as the game would reject your input if it detects certain words within that string of text.
859* SensibleHeroesSkimpyVillains: Both [[AvertedTrope averted]] and one could say almost [[InvertedTrope inverted]]. Many Reunion members tend to hide their face (and even Crownslayer, who hides her mouth, and Skullshatterer get in on it) and are just as covered-up as the members of Rhodes Island.
860* SentIntoHiding: In Chapter 2, it's revealed that [[spoiler:there are Infected who managed to sneak into the slums of Lungmen after the fall of Chernobog. Unfortunately, this also includes Reunion members who disguised themselves. The latter group revealed themselves after panic ensues as a result of Rhodes Island and the L.G.D. conducting a search operation in the slums]].
861* SeriesContinuityError: The final chapter of the ''Rhodes Kitchen'' manhua shows ''regular'' Kroos, when Dusk and Ling only boarded the landship after Kroos became the Keen Glint.
862* SignatureSoundEffect: Skills have different sound effects depending on if it boosts attack or healing, or generates DP. Using this, you can easily pick out what's happening on the field, as they will usually cut through other operators' voicelines if they're playing. Notably, there are a few operators who have specific, different effects, like Suzuran (similar to a bell), both Sora (either OneWomanWail or crowd cheering) and Skadi the Corrupting Heart (ethereal choir taken from the Under Tides theme), and more. Others have sound effects upon landing, like most Executor Specialists and Ethan. The sound effect [=Mon3tr=] being deployed is the same as Red landing with her second skill.
863** There are exceptions, where the sound effect doesn't quite match with the actual skill. For example, Warfarin's second skill is activated with the sound effect of a healing skill, yet it drains health and grants an attack steroid instead. Activating the Imprisonment Device also goes along with the sound of DP generation skills.
864* SheatheYourSword: Played with, as to get a secret cutscene in chapter 8, [[spoiler:the player must allow Mephisto's mutated form to pass into the player's box. But because he's still counted as an enemy, this means the player will still get penalized for letting someone through their defenses and will need to play it again for a perfect clear if it's their first playthrough.]]
865* ShoddyKnockoffProduct: Ironically, it has gotten one in the form of [[https://www.youtube.com/watch?v=Zd8WqhRBMi8 War of Embers]]. The system is the same, including the Deployment Points and the Potentials, and even the maps were barely disguised versions of the ones in ''Arknights''. [[CaptainErsatz Characters weren't immune to this either]], they became [[MovesetClone Moveset Clones]] with a different name (Haze became Sia Niro, with an equivalent Crimson Eyes, Skyfire became male with a version of Fire From Heaven called Apocalypse, and even the three Rhine Lab characters got an overhaul, with the "Silence" even summoning a "Leafy Fairy" to heal everything in the eight tiles around it) and even enemies got onto it, i.e hounds, slugs, but boss enemies got onto it too. [[https://www.youtube.com/watch?v=esZWgkpQguo See here]] for the equivalent for the 5-10 stage ([[AdaptationDistillation but without Mephisto and ballistae]]). While it has changed those things, but released under the name 'Watcher of Realms'.
866* ShopFodder: Pure Gold and Originium Shards cannot be used for anything else other than being sold in the Trading Post for LMD and Orundum, respectively.
867* TheShortWar: According to Kal'tsit, Chernobog fell to the Reunion Movement within ''one night''.
868* ShownTheirWork:
869** Ptilopsis and Silence not only look a lot like the owls they were based on, but they also have orange eyes, which is a real trait possessed by both of their owl species.
870** Some of the firearms used by the operators are actually based [[https://i.redd.it/us1pkb05ggm41.png on real-life models]].
871** There are plenty of medical terms and concepts inserted into the setting and dialogue, some major and easily noticeable such as the Hippocratic Oath in Rhodes Island's motto, to minor stuff like Kal'tsit mentioning "rubor, hypothermia, necrosis, and frostbite" after inspecting corpses on Chapter 4.
872** The Chinese words used in signs in Lungmen are correct, which would not be surprising if one knows the Chinese origins of the developers. However, the cyrillic words concerning Ursus and their operators (Gummy is a special case) are also without error.
873* SocializationBonus:
874** You can borrow other players' support operators for as long as those operators aren't already present in your current squad.
875** Adding other players as Friends allows you (and vice-versa) to visit each other's Base and gift excess Clues for extra Credits.
876* SomeDexterityRequired: Timing is crucial in this game, as in the timing of operator deployment and the usage of skills. A LoadingScreen tip even gives this tip to the player.
877** The game does give you a bit of a [[BulletTime slow-mo effect]] when you tap on your operators to view their stats during a mission.
878** If you mistime the placement of Roadblocks and put them on top of an enemy (even by an inch), that enemy will just destroy the roadblock, wasting your 5 Deployment Costs.
879* SpellLevels:
880** All Skills have numerical values representing their upgrade levels, which range from 1-7. Three additional upgrades beyond 7 are still possible, but these would be denoted by hexagon icons instead.
881** When comparing operators' similarly-named skills, there's actually a distinction on whose skill is stronger than the other. This is made possible using the skills' names having Greek letters as their suffix. For example in ascending order, "Healing Up α", "Healing Up β", "Healing Up γ".
882* SpellMyNameWithAThe: Grand Knights of Kazimierz are distinguished from regular Knights by having "the" before their title. Characters like Greynuty and Sona may have titles of "Ashlock Knight" and "Flametail Knight" respectively, but Nearl is ''the'' Radiant Knight and Droste is ''the'' Candle Knight.
883-->'''Greatmouth Mob:''' Today will see this Major's first clash of Grand Knight on Grand Knight! With the honor of 'the T, the H, and the E' on their titles, that's all you need to hear to know what these knights are about!
884* StarterMon: The game will hand you a sizable amount of basic units as you progress through the first few chapters and completing the relevant tutorial missions. These starter units are actually rather BoringButPractical, and will serve to keep you viable until the harder maps are concerned. Aside from them, for a limited time an early Global event gave new players the choice between four free 5-star operatives (Pramanix, Silence, Projekt Red, and Liskarm) after creating their account.
885* StatusEffects: Several.
886** [[TheParalyzer Stun]] - Anyone under this status is unable to do anything. For enemies, this means that they will stop moving and stop attacking while they're under it - even if they're about to attack, they can be stopped mid-attack. Operators under this status effect are unable to block and attack but still can recover HP and be healed. Stun usually lasts for a very short time.
887** Slow - The slowing down of an enemy on hit. When an enemy is hit with slow, they will move slower and attack slower. There are two flavors of slow; the one mentioned and slow that reduces enemies' movement speed such as Saria can induce. There is a difference between them and their effects can stack when applied together. To distinguish them, they are called Sluggish and Slow - Movement Speed, with different visual effects.
888** [[PowerNullifier Silence]] - Seals the target's 'gimmick'. For example, if an Infused Originium Slug is hit with this before it dies, then it will not explode upon death. Silence is typically induced on hit and there is no enemy yet that can induce this on operators. Not all enemies can be silenced, under which most of the newer types.
889** Bind - The other end of Slow. Stop an enemy entirely for a set duration. The difference between Stun and Bind is that enemies may be immune to Stun, but not to Bind. Therefor, Bind is rarer to find in operators than Stun. Operators under Bind (primarily caused by Sarkaz Casters) are unable to attack, block, and lose HP per second they're bound. They can still receive HP by Medics and/or regenerate passively if they have such talent, though.
890** [[HarmlessFreezing Cold and Freeze]] - Cold and Freeze are two status effects that are induced by enemies and ice crystals on the map, as well as certain operators. Anyone who is under the Cold effect will suffer from lower ASPD (and Move Speed in the case of enemies). If given the time, the effect will subsede. Freeze is the extreme version of Cold, and anyone will be frozen after having been hit with Cold a second time while still suffering from the effect. The affected target will stop attacking while under it entirely, but will not stop blocking (forming a substantial difference from Stun) and can still heal if they have a talent or a skill that allows them to keep healing. The target will receive increased damage from certain enemies/operators, and in the case of enemies have their RES reduced by a flat 15, but it will also subside if given the time.
891** [[ForcedSleep Sleep]] - The status Sleep makes enemies stop moving in place, but they will not be targeted by operators. Certain Operators have ways to bypass this restriction and attack Sleeping enemies regardless. There is yet no enemy that can induce this on operators, although an enemy-inflicted Stun has similar effects.
892** Poison - Three operators, Blue Poison, Aosta (his is labeled as "Bleed") and Thorns, have a Talent that causes their attacks to inflict Arts-based poison damage to whatever they attack.
893** [[DamageIncreasingDebuff Fragile]] - Increases damage taken by the enemy by a certain percentage, usually 20% at base. Typically purview of the Hexer Supporter subclass, but some Decel Binders like Suzuran and Gnosis can also apply it, and certain Casters or Medics like Ifrit or Reed the Flame Shadow apply Arts Fragility.
894** [[LastChanceHitPoint Critically Wounded]] - Upon receiving a fatal blow, Critically Wounded enemy has their HP reduced to 1 instead of being killed instantly, but they get slowed. They can either be killed by an allied operator to make them gain SP or left to die for real after few seconds.
895** [[BlowYouAway Levitate]] - An enemy hit by Levitate is sent to the air, making them unable to move. Additionally, they'll be treated as an aerial enemy, allowing modifiers against aerial enemies to affect them and Trapmaster Specialists to place a trap under the tile they occupied before Levitation. The effect lasts half as long if the enemy is heavy enough.
896** Weightless - An enemy affected by Weightless has their weight value reduced by 1, making them more vulnerable to shifters like Hookmaster/Push Stroker Specialists.
897** Enfeeble - An enemy's attack stat is lowered, this is currently only applied by Hexer Supporters after [[BalanceBuff their modules were patched]] into the game and then equipped.
898** [[MeleeDisarming Tremble]] - Tremble causes the enemy to be unable to attack when blocked.
899* StealthInsult: The ''Wrath of Siracusans'' item from Crimson Solitaire is the signature pasta dish from an [[ScareQuotes 'authentic Siracusan restaurant']]. Gaulish nobles praise its unique sauce made of [[CordonBleughChef thick chocolate sauce and Originium slug liver]]. Ultimately, the dish almost caused a diplomatic crisis between Gaul and Siracusa.
900* StopPokingMe: While most Operators will emit a generic grunt or noise when tapped on in the Base, some Operators will say something to this effect instead.
901* StoryBreadcrumbs: Much of the game's wider lore is mainly pieced together from all kinds of item descriptions, menu flavor text, and off-hand mentions in cutscenes. One notable example is how several non-playable members of Rhodes Island's Elite Operator team have ''only'' been characterized through the limited-time Rhodes Island Workstation furniture set and Ceobe's Fungimist Relics.
902* SuperDeformed: Operators have detailed artworks in menus and in the VisualNovel story parts, but they become chibi-fied in actual gameplay stages and in the base.
903* SuperNotDrowningSkills: Operators of aquatic origin (e.g. Skadi, Specter, etc...) are inexplicably able to breathe underwater, despite conforming to a visually human-like biology with no gills or other adapted respiratory systems. Stultifera Navis reveals that [[spoiler:most Aegir (aquatic) people can't breathe underwater, and that this is a unique trait granted by Seaborn integration such as the process to become an Abyssal Hunter, or consuming Seaborn flesh.]]
904* SuperpowerLottery: Arts ability varies wildly in function and power, and Oripathy can potentially help boost the power further if the Infected is lucky, as there is also a chance of the person not getting the boost, such as Fang, or even have their Arts weakened, as Astesia shows. For example, simple feats include Angelina's gravity manipulation, supportive Arts include Mephisto's necromancy and Faust's invisibility, while others like Blaze and [=FrostNova=] are known for their destructive and threatening Arts of fire and ice respectively. Some, however, are massively powerful ''without'' Oripathy, like Mostima whose max power is not quite defined since Rhodes Island had to stop testing before she break the testing area, or Nian, whose abilities are ''not'' Arts yet display abilities close to that of a PhysicalGoddess.
905* SuperStrength:
906** Some races, particularly Forte, have extreme physical strength disproportionate to their builds, and tend to use this to wield enormous hammers or swords in combat.
907** During "Originum Dust," Team Rainbow discovers that pretty much everyone from Terra has this relative to humans from Earth. Ash notes that a group of bandits that Team Rainbow fought were able to hurl javelins at shockingly long ranges, and when Tachanka tries to string a Terran heavy crossbow he can only barely get the string in place with massive effort. This is apparently why so many Snipers can use bows and crossbows alongside firearms with no real issue, as Terran strength means that their bows have massive draw weights and potential energy.
908* SuspiciousVideoGameGenerosity: The [[SanityMeter Light mechanic]] is a major challenge when going through the 2nd Integrated Strategy mode, as anything less than full can nail you with a crippling debuff and there are very limited ways to restore it. The second expansion introduces multiple Light sources, and going after the 4th boss gives you what is potentially the best Light restoration item, and can net you another item that further buffs your Operators' defensive stats. Sounds good, and they are good...but given what the 4th boss is capable of and the sacrifice needed to start going on its path in the first place, this should be the ''bare minimum'' to tackle it.
909* SymbolicallyBrokenObject:
910** In her home estate's bedroom, Ch'en has a photo of her and [[spoiler:Talulah in their younger days, a reminder that they were once friends and family]]. But there's a crack that splits the two in the frame, symbolizing how they're now in [[spoiler:opposing factions]].
911** [[spoiler:When Ch'en decides to desert Lungmen disillusioned by Wei's KickTheDog, Hoshiguma tries to stop her. Ch'en slices off the tip of Hoshiguma's shield Hannya to completely break her ties with her L.G.D comrades.]]
912* TakeMyHand: When the Doctor slowly regains consciousness in the prologue, the first sound and image that they perceive is Amiya pleading for the Doctor to wake up and grab her hand.
913* TakeOurWordForIt:
914** Due to its VisualNovel storytelling, the "fight scenes" are simply depicted using CG backgrounds, shaking sprites, flashing screens or are merely reacted to. The last part becomes blatant or obvious in the final cutscenes of Chapter 5, with the characters outright narrating or ''enumerating'' whatever feats or attacks the opposition does.
915** [=FrostNova=] [[MagicMusic sings in order to channel her ice magic]]. The narration then makes the other characters react to what she's doing, and having musical notes surround the lyrics in her dialogue.
916* TaxonomicTermConfusion: The game seems to play fast and loose with its cataloging of races, with operators based on a multitude of races tend to be lumped under an umbrella classification.
917** All operators based on felines go into that general group, regardless of whether they're based on small (''felinae'') or big (''pantherinae'') cats. This means that Mousse, who's based on a domestic cat, is of the same classification as [=SilverAsh=], who's a snow leopard. The sole exception to this rule seems to be Siege, who is strangely not a Feline, but an Aslan instead [[note]] Which might be special enough for the game to note, as those have a direct line to the Victorian throne [[/note]]. Folinic further sheds light on it, as she's a mongoose, yet a Feline, which confirms that the Feline race ''is not'' based on Felinae, but on Feliformia.
918** All remotely bird-like operators are Liberi, despite their species diversity running the gamut between peafowl and penguins. Hellagur and Archetto are also Liberi, despite their AnimalMotifs being hippogriff (half-eagle, half-horse) and griffin (half-eagle, half-lion) respectvely, being classified as per the 'head' of the animal.
919** All rodents are Zalak, and all mustelids are Anaty. The addition of Robin, who was based on raccoons, seems to suggest that the Anaty race actually contains representatives of the Musteloidea superfamily as a whole, and not just mustelids alone.
920** Asbestos is classified as a Savra, despite being based on an amphibian that's from a wildly different group than all the other Savra animals.
921** Tuye is classified as a Forte, while she is based on a camel (which aren't bovines).
922** Honeyberry is classified as a Zalak, even though she is based on a sugar glider (which aren't rodents, but marsupials).
923** When looking at [[https://www.reddit.com/r/arknights/comments/ohi5tu/phylogenetic_tree_20_now_with_more_sea_creature/ the phylogenetic tree]], it becomes fairly obvious that Hypergryph has been putting every operator that's based on an aquatic animal under the Aegir race [[note]] With the exception of the Abyssal Hunters, as their [[spoiler:different racial makeup makes them too different to be classified as Aegir anymore]][[/note]], no matter whether they are based on a sea dragon, jellyfish, squid, octopus, crab, seal, and more.
924** On the opposite end of the spectrum are Lupo and Perro, based on wolves and domestic dogs respectively. Both wolves and dogs are canines, however, and can even interbreed, which makes them being split into different races unusual. The "Il Siracusano" side story implies that this is due to [[spoiler: the Signori dei Lupi, who seem to have some influence over the Lupo of Siracusa, and intentionally make them more aggressive and violent compared with the Perro as part of the Signori's games.]]
925** Draco, Voiuvre, and Lung all have a similar issue, with all three races being based off different types of dragons, with at least one Draco character being half-draco, half-lung.
926* TemporaryOnlineContent:
927** Limited-time story events, including their event exclusive-rewards including operators such as Grani. While Record Restoration has done away with some go this, crossover events are still examples - the devs have confirmed that these events will''never'' get reruns or be added to Record Restoration.
928** So far, the only operators whose availability are tied to a specific banner are Nian, [[spoiler:W]] Rosmontis, Dusk, Ash, Skadi the Corrupting Heart, Ch'en the Holungday, Nearl the Radiant Knight, and Ling, who can only be rolled during the duration of their rate-up.
929** Operator outfits are only available to purchase during the one-month period in which they're in the shop. Once this sale period is over, the costumes will leave with it and no amount of Originite Prime can get them back short of the developers releasing them again in the future. However, most outfits become available again for purchase. The outfits are usually rerun every year and the older outfits are in general available in every event with a limited banner.
930** The stages in the short Vignette events will become inaccessible after the respective event is over. This means that the Originite Primes from clearing these stages and their challenge modes can only be obtained during the event.
931* ThisLooksLikeAJobForAquaman: Chip Operation Maps are designed with specific gimmicks so that specific operator classes can clear them with ease than the rest. However, you can still bring in other classes and over-leveled operators to brute force your way into these maps, it's just that the game recommends you what classes should you bring:
932** Solid Defense - The map has a toxic haze that constantly poisons your operators, draining their HP. '''Defenders''' can last for long thanks to their naturally high HP pools, while '''Medics''' can continuously heal their allies.
933** Fierce Attack - The map spawns a large wave of enemies at a given time, including [[AirborneMook airborne machines]]. There are Air Defense Runes that boost an operator's attack power at the cost of attack speed, so it's recommended to bring in Ranged units. Fortunately, '''Casters''' and '''Snipers''' can deal with enemies from a distance, including the airborne machines. Some ranged units also have AreaOfEffect attacks that can deal with tightly-packed clusters of enemies.
934** Unstoppable Charge - The map spawns the faster types of enemies such as Hounds that can easily slip past your defenses if left unchecked. '''Vanguards''' have low deployment costs, so you can easily deploy them even before these fast enemies arrive in waves. While '''Supporters''' usually debuff or slow down the enemies, which make them useful in dealing with crowd control. While these two classes generally have average health, this downside can be countered by the maps' Medical Runes, passively healing Operators assigned on top of them, and the lack of ranged enemies prevents your ranged operators from getting attacked.
935** Fearless Protection - The map has a very limited number of platforms where you can deploy operators, but there are also BottomlessPits that you can use to compensate. Many '''Guards''' usually have ranged attacks despite being melee operators, so they can still cover a lot of ground even when the platforms are spaced far apart from each other. On the other hand, '''Specialists''' usually have abilities that can manipulate their target's position, allowing them to push or pull enemies to death towards this map's pits. There is much less ranged grids in the map which are best saved for Medics who will keep the Guards and Specialists alive.
936** Paradox Simulation stages are made for a specific operator. For example, Specter's makes heavy use of her invincibility by letting her tank several bombtails, Texas' uses her second skill in order to get rid of a lot of small fries easily, Angelina's makes use of Push Stroker, Hookmaster, and Executor Specialists and brings enemies that aren't easily shifted, etc.
937* ThreeApproachSystem: The 8 classes fit into one of three roles.
938** Casters, Snipers, Guards and the occasional Vanguard are oriented towards offense, being the main attack force either by MoreDakka or a large ATK stat.
939** Defenders and certain Guards (specifically Centurion Guards) are oriented towards defense, aiming to inhibit enemy access and to hold enemies back from the blue box.
940** Supporters, Medics and Specialists are oriented towards support, who cannot typically hold the fight on their own (excepting Summoner Supporters when done right), but their specialized abilities can tip the balance in your favor.
941** Furthermore, Vanguards also fit into these. Pioneer Vanguards are designed to hold off early pressure and about half of them are actually defensive, Charger Vanguards are fully offensively-oriented, and Standard Bearer Vanguards are practically made to support, as their pathetic stats and their trait that makes them stop blocking when their skills are active makes them a bad choice for attacking and blocking.
942** Some subclasses veer off into other roles. For example, Arts Protectors and Duelist Defenders are focused on doing damage when their skills are active and on survivability when they aren't. Incantation Medics deal direct damage to enemies. Summoner Supporters can hit both offensive and defensive roles if played properly and supported.
943* TimeSkip:
944** [[spoiler:The final scenes of the "Knights' Treasure" event take place months after treasure was opened, with the village now reconstructed, while Big Bob and his men are finally satisfied in Columbia thanks to their share of the treasure.]]
945** In "Darknights' Memoir", there are several time skips that scatter around the narrative. Several months passed between W's inclusion in Hoederer's mercenary group to W and Ines' first meeting with Babel, another several months passed when Hoederer and Ines leave Babel while W stays, Hoederer and Ines found W 6 months later after Babel scattered by Theresa's death, the 2 years of the trio working as part of Reunion, before the story reaches the Chernobog incident in the present. The entire story goes for the span of 3-4 years.
946** 9-20 establishes that [[spoiler:it's been 11 months and 27 days since the Chernobog incident (end of chapter 8) happened by the time Rhodes Island has prepared for their trip to Victoria that will be the primary focus of the second StoryArc.]]
947* TitleDrop: Present in the middle of the game's [[https://www.youtube.com/watch?v=mvivPy7j6_Q second Official Concept Trailer]], as quoted by Amiya.
948-->'''Amiya:''' With my companions, I am never alone. After all, we are... Arknights.
949* TranslationConvention: Aegirian is a foreign language that only some can understand, but the narration easily translates it to the game's local language for convenience. This fictional language's name is prefixed to the sentence as an indication that a character is speaking it. This happens in the "Grani & the Knights' Treasure" event, courtesy of Skadi and [[spoiler:Kal'tsit]].
950* TrueSight:
951** Reunion leaders as well as specialized techs could spot operatives who are cloaked or hiding in bushes. While the techs are of generally low threat, they are often priority targets due to them revealing your squishy ranged units to Crossbowmen or other high-damage enemies.
952** On the player's side, certain maps will have fixed Detectors that can be toggled for a short duration to reveal all cloaked enemies in range, and operators like [=SilverAsh=], Ines, Elysium, Tsukinogi and Scene have talents or skills that let them decloak enemies.
953* TheTurretmaster: Certain Operators have the ability to summon their own minions for further damage, which remain placed on a fixed tile. These minions usually cannot be healed directly by Medics, with the only way to restore HP being to retreat and replace them or using indirect healing like provided by Blemishine, Suzuran, or Bard Supporters. The Operators' skill typically is to buff their minion or grant them a new ability during the skill's duration. Furthermore, some Operators can infinitely deploy and redeploy their minions, while others only have a limited stock and require their own retreat in order to restock.
954* UndergroundMonkey: Stronger variants of some enemies come with different color themes, like the "leaders" which are red versions and "elites" which are white.
955* UnexpectedGameplayChange: At its core, Arknights is a Gacha Tower Defense game. But events have introduced game styles ''totally'' different than its base game, [[ChangingGameplayPriorities with different requirements to complete it.]]
956** '''Integrated Strategies:''' The {{Roguelike}} mode. You are given choice on how to start, but what you encounter and what you get will be random, ensuring no two runs will be quite the same. While the items you get may boost your operators to ungodly levels, at times the random number god will be feeling cruel and give you the barest minimum. As a result, you can do everything right and still lose if the random roll isn't being kind to you.
957** '''Stationary Security Service:''' The Card Battle mode. Treat the Preparation zone and Recuperation zone as 'Library' and 'Graveyard' respectively, and you get an idea of what to expect. Operator can only be deployed in limited number, but they provide buffs to each other that stack, and it's more important to have 2 fully buffed Operators in place than 5 bare-bone ones.
958** '''Reclamation Algorithm:''' The GrandStrategy mode. You have to make sure your Food and Resource income are stable, as Food determines your Operators' Stamina for deployment, and Resource is used to construct buildings and tools to make your life easier in the long run. You can only take 2 actions per day, and strategic position is just as vital as tactical deployments. This mode forces you to diversify, as relying on the same batch of operators will only lead them to run out of Stamina and requiring downtime. Enemy Raids are usually too big to be defeated in one go and thus requires interception to whittle them down as damage done to them typically are permanent and carry over to the next encounter. Later on, you can also carry over supplies to the next run while granting various bonuses at the start, essentially a NewGamePlus.
959* UnlockableContent: Many features require you to beat certain missions in the earliest story chapters before they can be used:
960** Beating Operation 0-2 unlocks the Recruitment feature.
961** Beating Operation 0-10 unlocks the Store.
962** Beating Operation 0-11 unlocks the [[PlayerHeadquarters RIIC Base]].
963** Beating Operation 1-5 unlocks the Annihilation maps.
964** Beating Operation 1-10 allows you to join limited-time events.
965** Beating Operation 2-9 unlocks Challenge Mode for specific maps.
966** Beating Operation 3-8 currently unlocks the second main story arc from Episode 9 onward, to let you reach materials needed by newer Operators. The first main arc still requires you to play through Episodes 4 through 8 as normal.
967* {{Unobtainium}}: Originium, a black, crystalline mineral with incredible energy density, which can only be found in the site of great catastrophes, where it is available in a shockingly large amount (see the giant black crystals). It has seen use as everything from a power source to construction material.
968* UnusualHalo: The Sankta race is a [[WingedHumanoid race which looks similar to Christian angels]]. However, a few Sankta Operators have their halos clipped with tech devices, and Mostima, who is a Fallen Sankta has a black halo, which quite fits, since she was named from a FallenAngel in certain ancient archives (however, this also counts as IronicName, since Mostima in the game is a good guy). In the ''Guide Ahead'' side story, Cecilia is unusual as she is a Sankta with a halo that appears ''melted'', which is an indicator that she is [[spoiler:half-Sankta and half-Sarkaz]].
969* VagueAge: Most of the operators' exact ages aren't directly given, though some can be inferred based on the information that ''are'' available (e.g. the Ursus students being in "middle school", putting them between 12-18 due to how the Chinese school system works, and that Margaret Nearl is 25 and Maria Nearl is in her late teens based on when their parents died). This is [[https://www.arknights.global/news/110 intentional]], as it is irrelevant in the grand scope of things. If anything, it's a limiting factor when it comes to the range of themes illustrators could create their designs with, and also because the various races of Terra age at different rates to each other. This manifests itself in Warfarin having a different perception of how long ago they left from a certain place, and Kal'tsit even outright says that years are different for Sarkaz than it is for Feline.
970* VersionExclusiveContent: While it is of no surprise, given how the CN servers are ahead of the Global servers by several months, therefore, having certain content exclusive to them for the time being until Global receives them as well, there are some exceptions:
971** The KFC-themed skins are skipped and excluded from the Global servers, presumably because for CN, it required the player to go into a physical KFC store/ordering from KFC using their app.
972** There is an exclusive to CN Amiya skin tied as a bonus to the physical artbook, which is currently only available in print for Mainland China.
973* ViciousCycle: The relation between the Catastrophe and Originium works like this; the Catastrophe occurs in the place with high concentration of Originium, and the Catastrophe will rain the land with more Originium. People in Terra attempt to evade the Catastrophe with mobile cities, but the mobile cities need Originium to power their engine. This causes the Catastrophe to wreak more of the previously untouched lands when these cities traveled through them to avoid the Catastrophe in the first place. Rinse, repeat, and we have an almost dead world that taints its people with an incurable disease.
974* VideoGameCaringPotential:
975** The [[RelationshipValues Trust]] mechanic unlocks new voice lines and information about the Operator the more you use them in missions or in the base. Eventually from hearing the unlocked voiced lines, you'd realize that the Operator would express themselves more to the Doctor. One could even call it a gameplay mechanic that passively brings CharacterDevelopment the more you rely on the same operator.
976** Operators assigned in the Base facilities would gradually lose Morale overtime, leading to Fatigue, a state that disables their passive Base bonuses. You could assign them to the Dormitories to make them rest and recover Morale in order to become productive again. The game would even reward you for doing so via a Daily Mission.
977* VideoGameFlamethrowersSuck: Largely [[SubvertedTrope subverted]] with Ifrit's weapon; while it is only effective in the tiles directly in front of her, when using Ifrit's second skill it has afterburn damage, a DamageOverTime that can finish off your enemies even if they escape this condensed range.
978* ViolationOfCommonSense: The game seems to have a rather funny way of dealing with certain things.
979** Unlike many tower defense games, where ArbitraryWeaponRange can be handwaved as the traversal limitation of static defenses, it's a lot harder to justify the same concepts in ''Arknights''. Operators have clearly-defined ranges, and will do nothing when an enemy leaves their attack zone. Seemingly, these operators can't be bothered to turn around or look to the sides to attack targets well within their field of view, even when they or other teammates are being pounded into pulp by nearby enemies. If it's any consolation, the enemy (mostly) can't do this either.
980** Chapter 8 of the main story features secret unlockable scenes if you beat them with certain requirements. For most of them , they're normal challenge run stuff (let all NPC allies survive, use certain characters, etc.). The M8-8 secret, however, is unlocked by [[spoiler:letting the main boss get through, meaning you have to deliberately screw yourself out of a perfect score to get it.]]
981** Enemies have a predetermined path and will head for a specific blue square as their destination. On some roadblock-based stages, that means you can rewrite their pathing to go straight through other blue squares with zero consequences, since they're not their preset objective. This can actually be very helpful.
982* VirtualPaperDoll: Operators can be dressed up with outfits, purchasable for 15 Originite Primes (18 for outfits which add/alter certain special effects for an operator's abilities during operations, 21 for outfits with Live 2D art, and 24 for outfits with Live 2D and new voicelines) each in the Outfit Shop, or unlockable via in-game events such as cumulative log-in rewards or event shops.
983* VisibleInvisibility: Cloaked enemies are presented as their normal unit sprites with a black shadowy-smoky distortion around them. As long as this distortion effect is still active, they are treated by your operators as completely invisible unless revealed by blocking or by a TrueSight effect. Likewise, the few operators who can go invisible themselves (e.g. Firewatch, Manticore, etc.) are also presented like this.
984* WeHaveReserves: Considering the sheer number of followers they have, most Reunion leaders have little care throwing their troops at better armed and trained opponents like CannonFodder.
985* WhamEpisode
986** Operation 3-8. [[spoiler:Misha disguised herself in Skullshatterer's clothes following his death, marching in the battlefield and rallying the remaining Reunion forces. The Reunion obviously had their morale boosted and claimed this scene as a miracle, while the Rhodes Island and the L.G.D. forces were left in shock at how the events unfolded. Amiya is the one who's hurt by this the most, as she killed Skullshatterer in the first place, and that she had a strong feeling that it's actually her friend Misha in disguise]].
987** Chapter 7 drops a ''lot'', to name a few:
988*** 7-1: W triggers her plan to [[spoiler:kill Talulah with rigged explosives, but fails as Talulah sees through it in advance. A fight between the two ensues, ending in an explosion that blows W away, seemingly killed.]]
989*** 7-2: Ch'en and Wei Yenwu have a heated argument over who should stop Talulah and the Chernobog city block headed towards Lungmen without compromising Lungmen's diplomatic status. [[spoiler:Ch'en herself reveals she is infected, and discards her LGD badge to go after Talulah alone.]]
990*** 7-7: We learn from Wei about a certain "Duke of Kashchey," an Ursus political figure whose death still looms over Wei for some reason. Wei connects the dots and notices that the way the current Talulah is acting is [[spoiler:way too similar to the Duke of Kashchey's persona, hinting that she might be possessed by the dead Duke]].
991*** 7-18: By the end of the fierce battle between Rhodes Island and Patriot, Patriot discovers that Amiya may be the [[spoiler:''Demon Lord of Sarkaz'' as foretold by an ancient Sarkaz prophecy, through hallucinations seemingly (and unknowingly) triggered by Amiya, before finally dying]].
992*** 7-20: Flashback time: we see what happened on the night when the Duke of Kashchey took away [[spoiler:Talulah in a power play against Wei Yenwu, kicking off his grand plan of bringing Ursus back to power. Then the Regent and Confessarius of Ursus hint of their plans with a glimpse of what seems to be the body of the dead Sarkaz queen Theresa]].
993** The entirety of Chapter 8 surpasses even Chapter 7 in terms of sudden revelations. Not only do they shed a massive amount of light on Reunion's history and eventual fall, as well as the various geopolitics of Terra, [[spoiler:but they also delve into the Doctor's past, the true nature of the Sarcophagus, the Ageless like Kashchey, and Amiya's role as the Lord of Fiends with regards to her future conflict with Kazdel.]]
994** ''Darknights Memoir'' and to an extent ''Vigilo'' are generally considered to be two of the most essential stories to read in order to understand some of the later story beats, as they both go over the Doctor's history with [[spoiler:Babel, and the circumstances that led to Babel's destruction, W and Kal'tsit's vendetta against the Doctor, and their relationship with the Sarkaz, among other things.]]
995** '''Lone Trail,''' quite possibly the mother of all lore bombs to date as well as (as of the release of Episode 13) the longest piece of text in the game's history. To wit, Lone Trail is not only a conclusion of the Rhine Lab storyline, but opens up a whole other can of worms with the revelations about [[spoiler:the Doctor's origins, the space-faring precursor species that predated Terra, Priestess and the birth of Originium, the true nature of the Seaborn and Collapsals, the universe beyond Terra itself, and far more. Kristen's shattering of the fake sky at the end also means that Terra is now finally free to advance into the stars, with all of the implications that it provides. On top of that, the events of the story provide an unclear but most definite link to ''Endfield'', the currently unreleased spinoff.]]
996** "Babel" completely recontextualizes the Doctor and the Precursors' backstory and the history of Terra itself. [[spoiler:The Doctor and Priestess were responsible for seeding Originium on Terra in the first place under orders from their fellow Precursors in a bid to preserve their own species, knowing it will infect the native life with Oripathy. The Doctor was then tasked with overseeing and ensuring the progress of Originium's spread, manipulating the races of Terra to be in a state of eternal war to promote the spread of Originium and disrupting attempts to find a cure to Oripathy. This comes to a head when they join Babel and assassinate Theresa to sabotage her attempts to find cure. As her last act, Theresa erases the Doctor's memories so they can start over from a blank slate, explaining their sudden amnesia at the start of the game. ]]
997* WhamShot:
998** Due to their obscure nature desptite their seemingly massive lore significance, any scene or CG showing [[spoiler:Priestess]] is inevitably this for lore enthusiasts.
999** A lot of shots from [[https://www.youtube.com/watch?v=_fHizOtMLnM Concept Trailer 3]] are these, but arguably the biggest one is [[spoiler:an older-looking Amiya with Theresa's pink eyes and white Arts.]]
1000** [[https://www.youtube.com/watch?v=IAY3qnoBxHA The Concept PV]] that is released to commemorate the release of Chapter 10 in the Chinese server shows [[spoiler:a silhouette of Theresa walking under Theresis' shadow and the final shot of the PV shows a now resurrected Theresa standing next to Theresis as they overlook Londinium]].
1001* WhatMeasureIsANonHuman: "Ancient" in this case that border on CarnivoreConfusion. In a world where most of the population is made up of anthropomorphic animals, the one true question is "what do they eat?". The common knowledge is that most Terrans have the same general diets as us humans, which consists of meat and vegetables, so where does that meat come from? Or rather, ''who'' does that meat come from? Since they do rear cattle for meat, then what's the dividing line between them and the typical Terran? Does it count as cannibalism if they eat meat from the same animal species as their own? Do those same species exist on Terra? Ethan (who is based on a lizard who normally eat insects as their diet) likes to eat smaller lizards, and Gummy very visibly grills a beefsteak on her pan (she's based on a bear, a species whose diet normally consists of fish and honey), so it ''can'' be inferred that there exists both Ancients and normal animals, and some of those animals are kept for food, but it doesn't make consuming your own non-sentient counterparts any less wrong from a non-Terran perspective.
1002* WingedHumanoid:
1003** Those from the Liberi race are based on birds, and several of them have feathered wings. Some operators choose to fold theirs into cloaks or coats instead.
1004** The Sankta people are modeled after Abrahamic angels and thus have glowing wings and (presumably decorative) {{Holy Halo}}s. Exusiai complains at one point that she can't turn hers ''off''.
1005** Certain varieties of Sarkaz can also manifest wings, and as you might expect from demon people, these look suitably demonic. Warfarin is one example in her Elite II art.
1006* WinsByDoingAbsolutelyNothing: The Survivalist hallucination in Integrated Strategies imposes a constant HP drain on both player and enemy characters on the map. While the player has Medics to counter this condition, enemies do not. Depending on the map and enemy behavior, it's a viable strategy to just deploy no one and let all enemies simply die when their HP drains to zero.
1007* WorthlessYellowRocks: Played with. Gold Bars are effectively worthless in-game, with no real use outside of selling them for LMD at Trading Posts, so in that sense they are worth ''something'' to ''someone'', just not Rhodes Island. Part of the reason is that Rhodes Island has the capability to mass produce gold, and because of this mass production, they sell for a pittance per unit, with trade values of 1,500 and 2,000 LMD being a relative rarity and barely covers the price of anything of importance.
1008* YouMeanXmas: ''Code of Brawl'' [[HalloweenEpisode takes place on the 31st of October, amidst an annual festival commemorating the dead]]. While there are allusions to modern Halloween traditions, such as candy being given out to children and costumed partygoers wandering the streets after dark, the holiday is referred to as Sauin, named after the ancient Celtic harvest festival believed to have been the root of what we know today as Halloween. [[AvertedTrope Christmas itself, however, is still known as Christmas]].
1009* ZergRush: The most common tactic for Reunion forces. What they lack in training and equipment, they make up for in sheer numbers and suicidal devotion to their cause.
1010[[/folder]]

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