History VideoGame / Arknights

* ''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 chapters at most. This 4-koma series is illustrated by [[https://twitter.com/kyo_zip 狂zip]].

* 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. 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.

A manga anthology adaptation [[https://twitter.com/ArknightsStaff/status/1273540971523829761 was announced]] on June 18, 2020. It should be noted however that it is non-canon to the story.

The official "Terra Historicus" website [[https://terra-historicus.hypergryph.com/ here]] publishes a number of webcomic spinoffs. Unlike the anthology above, the below spinoffs are considered canon supplementary material:
* ''A1 Operations Preparation Detachment'', a side story centered on Rhodes Island's Reserve Op Team A1 operators Fang, Kroos, and Beagle.
* ''Rhodes Island's Records of Originium - Black Steel'', a side story centered on Blacksteel-affiliated operators Franka, Liskarm, Jessica, and Vanilla.
* ''Rhodes Island's Records of Originium - Rhine Lab'', a side story centered on Rhine Lab-affiliated operators Ifrit, Silence, Saria, and Ptilopsis.
* ''Rhodes Kitchen -[=TIDBITS=]-'', individual side stories about Rhodes Island's operators and their daily meals.
* ''Angelina - Sketches of THIS Messenger's Journey'', a side story centered on Catastrophe Messenger Angelina.
* ''Prelude Suite: Cadenza Virtuosa'', a side story centered on Laterano-affiliated operators Virtuosa and Executor.
* ''Prelude Suite: Sharp Blade, Silver Edge'', a side story centered on Karlan Trade-affiliated operators [=SilverAsh=], Gnosis, and Degenbrecher.
* ''Let's Have a Dinner Together'', a side story centered on Sui siblings Nian, Dusk, Ling, and Chongyue.

An official anime adaptation, ''Arknights: Prelude to Dawn'', [[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.

[[https://www.youtube.com/watch?v=a2fYkEgZqTM The teaser trailer]] for the second anime adaptation, ''Arknights: Perish in Frost'', 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.

A SliceOfLife short animation series initially based on the ''[[https://www.youtube.com/watch?v=MdBbLUdB4LQ Kay's Daily Doodles]]'' short animation released April 21 2023, was [[https://www.youtube.com/watch?v=_9Q1Z65Ul8Q teased on October 23 2023]]. 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.

A spinoff[[spoiler:/seeming StealthSequel]], ''[[https://endfield.hypergryph.global/en Arknights: Endfield]]'', [[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.

* ArtEvolution: 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.

* CrapsackWorld: 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 AristocratsAreEvil that litter the world. 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 stuck in the orbit of a supermassive black hole, and it's only a matter of time before the planet is sucked into it]]. "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 intelligent life in the form of the first Ancient races... 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.]]

** The "Extreme/Inferno Mode" stages that begin in Chapter 5, denoted by the "H" in front of their name (eg. H5-4). These maps feature incredibly tough enemies configured in even tougher formations, and may even bring back a stronger version of the chapter boss for you to fight, with later chapters outright giving the bosses entirely new abilities. Beating them awards you with an extra Originite Prime each and a Medal if you clear all of them in a Chapter.

* CrapsackWorld: 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 AristocratsAreEvil that litter the world. 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 stuck in the orbit of a supermassive black hole, and it's only a matter of time before the planet is sucked into it]].

* 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 suddenly is reduced to four after he is transported to Terra).