An epic bug hunt featuring a unique blend of co-op play and squad-level tactics. With your friends, form a squad of four distinct IAF Marine classes. Plan your attack using an unlockable arsenal of weapons with countless loadout configurations against a wide variety of aliens. Blaze your way through an overrun, off-world colony, eradicating the alien infestation in environments ranging from the icy planet's surface, to a subterranean lava-flooded mining facility.
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Hypovolemia
Third Person ShooterHYP is real time tactical shooter with chess like awareness and high skill ceiling. The game focuses on intricate game design while offering a unique...
Borealis
First Person ShooterSet sail on the legendary Aperture Science Research vessel, the Borealis.
Vectronic
PuzzleVectronic is a first-person environmental puzzle mod using Valve's Source Engine. Players must solve puzzles using special power balls that effect boxes...
Cubed
First Person ShooterUse the power of building to solve puzzles. With 4 different types of bridges, you can accomplish anything. Reach the highest heights, and the lowest...
Lambda Wars
Real Time StrategyLambda Wars (formerly Half-Life 2: Wars) brings the struggle between the human resistance and their Combine overlords to a multiplayer real-time strategy...
Alien Swarm: Reactive Drop
ArcadeAdds new maps, 8 player support, deathmatch, single-player, Antlion Guard into Alien Swarm without changing its concept.
Apocalypse-22
First Person ShooterApocalypse-22 is a survival game, you control a woman called Abigail in year 2022 in order to stop the infection, look for resources, food, water, make...
SourceForts 2
First Person ShooterRedefine the environment around you. SourceForts 2 is a FPS game designed around building your base and battling against the opposing team in order to...
Marine retexture
Third Person Shooterthis addon makes the marines look more dirty & the sarge has a camo now,
Enhanced Interstella Armed Forces
Third Person ShooterA new MOD based on Alien Swarm 2011 version. It is an independent game that does not need a installed Alien Swarm. Many data about marines and equipments...
Serious Swarm Marines
Third Person ShooterThere new mod for Alien Swarm, with new models and other changes.
Swarm Director 2
Third Person ShooterAlien Swarm with a twist. Better AI, new mutations, new mapper tools.
Chaos Swarm Marines
Third Person ShooterThere new mod for Alien Swarm, so on release we have new models and custom particles. More new portraits and other changes.
Black Mesa Swarm
First Person ShooterBlack Mesa Swarm is an Alien Swarm total conversion remaking Valve Software's award-winning PC game, Half-Life.
The Survival
First Person ShooterThe Survival is an episodic Source Engine total conversion mod with an original storyline and unique cast of characters. Play your way through a post-apocalyptic...
Alien Swarm:Silencer Mod
Third Person ShooterDo you think the aliens are deaf?Unfortunately,they have perfect hearing ability.In another word,the huge noice comes from your weapons can attract the...
Alien Swarm: Rifle Mod
ArcadeRifle Mod is an Alien Swarm server-only mod that forces players to play with assault rifles only, harder aliens, more ammo, smarter bots. However rifle...
Alien Swarm Director Mod
Third Person ShooterWelcome to the Alien Swarm Director Mod! ASDM is a single player Alien Swarm mod focusing on increasing replayability by creating a dynamic experience...
Zombie Swarm.
Third Person ShooterGreetings, members of ModDB. My name is Kenny, and I am currently the sole team member of the Zombie Swarm team. I originally started this project in...
Lylat's Last Stand
Third Person ShooterSFR (WIP title) is a mod for the Source Engine. It's based on the 3d shooter game Starfox. It will be mostly based on the 1993 nintendo power comics...
Alien Swarm:SP
Third Person ShooterPlay the official Alien Swarm maps and any addons through the Offline Practice mode. Alien Swarm:SP also supports a large amount of configurable changes...
ALIENS
Tactical ShooterA mod for Alien Swarm that is based on the ALIENS movie but for a set of new marines to go and investigate LV426 and see what happened there! (This is...
Swarm Keeper
Real Time StrategySwarm Keeper is a Dungeon Keeper inspired modification for Alien Swarm. It offers the following features: Build a dungeon for your creatures (aliens...
B.R.I.S.k.
ArcadeB.R.I.S.k. is a game with unique gameplay developed by a team «Two On The One Box», which has created a modification for the game Portal 2 - Afterword...
Brawlers
Third Person ShooterAfter the dust had settled from the worlds greatest war, stockpiles of defunct weapons and ammunitions around Europe were scheduled for destruction. Private...
ASB² mod
Tactical ShooterASB² mode (alien swarm beyond brutal) is a reborn ASBi game mode emphasizing the higher degree of difficulty, which includes the invalidity of such options...
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