History VideoGame / SvenCoop

** Jarringly enough, despite the variety in third-person models, players' soundboards will always have the same gruff-sounding marine voice.

* PurelyAestheticGender: Players can choose to play as male or female characters and still kick ass either way.

* ActionGirl / PurelyAestheticGender: Players can choose to play as male or female characters and still kick ass either way.

** For a specific example, the ''[[http://scmapdb.com/map:pizza-ya-san Pizza Ya San]]'' (Pizza Shop) map. It features strange customers (two examples are [[VideoGame/TeamFortressClassic the VIP from TFC who eats pizza with chopsticks]] and a random Black Mesa scientist that stretches his mouth trying to fit an entire pizza inside), [[EverythingTryingToKillYou surprisingly lethal obstacles to making a pizza]], and unbelievable justifications for the enemies ("Disgusting Vermin" and "Pizza Eaters"). Did we mention that [[WidgetSeries it's a Japanese map?]]

Released all the way back in 1999, Sven Co-op is a CoOpMultiplayer modification of ''VideoGame/HalfLife1'' that's been in development for well over a decade, constantly updated and improved.

* GiantMook: Those goddamn Human Sergeants, with their huge Gatling guns.

* BaitAndSwitchBoss: The "Monster Spleen" of ''Toon Run'' scenario is introduced as a generic Half-Life leech in a fish bowl. It's PlayedForLughs as it dies from a single blow from anything. Once you kill it, it is revealed that there is actually a very real Monster Spleen boss, to deal with and it's nowhere as easy as the fake one.

* KnifeNut: Subverted. In the ''VideoGame/AfraidOfMonsters: Director's Cut'' port, your primary melee weapon is a kitchen knife, as in the original, where it is encouraged to use it as much as possible to save on ammo, which is dangerously scarce. However, due to Sven Co-op being much more easier and generous with ammo due to the multiplayer elements, the knife is completely useless and should only be used to destroy breakable objects like boards and vent covers.

* FingerlessGloves: The HECU grunts.
** The female assassins as well, thanks to their new HD models.

** The HD pack's M16 assault rifle, which was originally a graphical replacement for the MP5 submachine gun, is now its own weapon here. Both weapons have undergone a number of gameplay changes to differentiate them.[[note]] The MP5 exchanges its grenade launcher for a scope, while the M16 is burst-fire and retains the grenade launcher.[[/note]]

* PragmaticAdaptation: ''Half-Life'''s campaign was never designed for co-op, which results in some of the levels being modified to be beatable by more than one person (such as altering ''On A Rail'' to make it possible to go through the level without using the tram at all). Some servers also disable certain gimmicks, such as the tripmine maze in ''Residue Processing'', to combat [[{{Griefer}} griefing]].

* PragmaticAdaptation: ''Half-Life'''s campaign was never designed for co-op, which results in some of the levels being modified to be completable by more than one person (such as altering ''On A Rail'' to make it possible to go through the level without using the tram at all). Some servers also disable certain gimmicks, such as ''Residue Processing'''s tripmine maze, to combat [[{{Griefer}} griefing]].

* DummiedOut: Inverted. Enemies, weapons, mechanics and other concepts cut from ''VideoGame/HalfLife1'' are integrated here, from new enemies such as the Kingpin and Panthereye to the Vortigaunt's revival ability are put back into this mod. The weapon models play it straight, having hidden content in their textures ranging from credits to anime girls.

* CanonForeigner: Some new enemies were created for the mod, such as the Baby Gargantua (a smaller, red Gargantua), and the Xen Commander. Some new human enemies include the Agent (who can use a variety of weapons), Otto, and Barnabus (the last two being [[EvilCounterpart enemy AI versions of Barney and Otis]]).
* CanonImmigrant: The Robot enemies from the German version of ''Half-Life 1'' make an appearance and have the same AI as human enemies - however, their movements are notably more robotic (obviously), they're given proper metallic properties, spark and smoke as they take damage, and when they're killed, explode. The cigar-smoking, gatling-wielding Heavy Weapons soldier cut from the final product of ''Half-Life 1'' also makes an appearance.

* ClumsyCopyrightCensorship: A ''VideoGame/SuperMarioBros1''-themed section of Toonrun had do be edited for the game to be added on Steam. It was done by having the bricks look like they were covered by blankets, and the backdrop was turned into a crude drawing - perfectly in-line with Toonrun's aesthetics and flippant gameplay.

* CurbStompBattle: Given that combat in ''VideoGame/HalfLife1'' and ''VideoGame/TheyHunger'' was originally balanced for only one player, and this mod allows one to get upwards of ''20 people'' to assist, battles quickly become one-sided, even when the mod incorporates ''Opposing Force'''s new, more powerful enemies. And if respawns are turned on, [[ForegoneVictory it's pretty much impossible to lose]]. There ''are'' options for servers to make enemies scale to team size, resulting in massive bullet sponges who'll kill anyone with a quick burst of their M16, and certain maps drop dead players in an unleaveable spawn area, with a game over if all players die.

** The HD pack's M16 assault rifle, which was originally a graphical replacement for the sub-machine gun, is now its own weapon here. Both weapons have undergone a number of gameplay changes to differentiate them.[[note]] The submachine gun no longer has a grenade launcher, instead having a scope, while the assault rifle is burst-fire and receives the grenade launcher.[[/note]]

* DummiedOut: Inverted. Enemies, weapons, mechanics and other concepts cut from ''VideoGame/HalfLife1'' are integrated here, from new enemies such as the Kingpin and Panthereye or the Vortigaunt's revival ability are put back into this mod. The weapon models play it straight, having hidden content in their textures ranging from credits to anime girls.

* EliteMook: Like in the original ''Half-Life'', the assassins.

* FacelessGoons / GasMaskMooks: As in the original Half-Life, some enemy grunts spawn wearing gas-masks and balaclavas, as are the assassins.

* FingerlessGloves: The grunts.

* GiantMook: Those goddamn heavy grunts, with the huge Gatling guns.
* GoodCounterpart: Friendly versions of the human grunt, black ops troopers, and aliens have lighter coloring. The friendly female assassins, in particular, have silver catsuits as opposed to the hostiles' black, and male assassins wear khakis and not skintight black fatigues.

* SoundtrackDissonance: Thanks to the built-in music player, you can put any songs that don't fit in to the Half-Life campaign or any other maps. Who would have the time to listen to [[VideoGame/BangDreamGirlsBandParty "Goka! Gokai!? Phantom Thief!"]] or [[Music/{{VOCALOID}} "Senbonzakura"]] while killing zombies or HECU grunts?

* VideoGameCrueltyPotential: The Stadium maps let you spawn any [=NPC=] you want in the titular arena. Which means you can pit a completely defenseless scientist against a horde of Gargantuans.

** For a specific example, the ''[[http://scmapdb.com/map:pizza-ya-san Pizza Ya San]]'' (Pizza Shop) map. It features strange customers (for starters, [[VideoGame/TeamFortressClassic the VIP from TFC is eating pizza with chopsticks]], and a random Black Mesa scientist that stretches his mouth trying to fit an entire pizza inside), [[EverythingTryingToKillYou surprisingly lethal obstacles to making a pizza]], and unbelievable justifications for the enemies ("Disgusting Vermin" and "Pizza Eaters"). Did we mention that [[WidgetSeries it's a Japanese map?]]