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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![ASW Styled Antlion Guard [ASW:Reactive Drop]](https://media.moddb.com/cache/images/downloads/1/227/226339/crop_120x90/guards.jpg)
ASW Styled Antlion Guard [ASW:Reactive Drop]
NPC SkinSimple reskin which purpose is to make Antlion Guards to fit style of the game. To install it, put it in "reactivedrop\addons".
Blood_Wraith's Random Source Map Compilation
Singleplayer Map 1 commentAn assortment of Source maps I've made over the years. (Half-Life 2 / Garry's Mod, Counter-Strike: Source, Team Fortress, Left 4 Dead 2, Alien Swarm...
Flynn as Vegas!
Player AudioReplace Vegas with Flynn from the Alien Swarm mod for Unreal Tournament 2004.
Topic of The Walking Dead
GUI 1 commentThe portraits of marines are changed into the topic of The Walking Dead. Sarge-Rick Jaeger-Daryl Wildcat-Maggie Wofle-Abraham Faith-Tara Bastille-Glenn...
Female Marines' Superstar Plan
GUIWe all know that Wildcat and Faith are soldiers. Soldiers should be wild and tough, but female ones can be pretty. This addon adjusts the portraits of...
particles addon
Multiplayer MapThis file is used to enable custom particles on upcoming asw maps like Forbidden_outpost and on some old like Absolute_madness in easier and better way...
Evilcorp
Multiplayer MapEvilcorp is a one map campaign for Alien Swarm by GRRRR aka Schleicher. This is the original version but packed in VPK with fixed file conflicts, crashes...
Midnight Harvest
Multiplayer MapMidnight Harvest is a two map Alien Swarm campaign by Jarhchief. This version has the unchanged BSP files but fixed TXT files. Fixed file conflicts and...
Orion's Threat Sepia Color Correction
Effects GFXReplaces color correction to sepia effect in Orion's Threat campaign map 1.
Hessian Border Station
Multiplayer MapHessian Border Station is a two map campaign by Johannes Lerch. This is the original campaign with a fixed download link, included AIN files, fixed marines...
Orion's Threat
Multiplayer Map 1 commentNew fresh Alien Swarm map. Many unique ideas and stuff, huge scripting usage. Enjoy and have Fun!
Nitro Canister Case
Multiplayer MapNitro Canister Case is a one map campaign for Alien Swarm created by Tien. The map is very hard with lots of ambushes. This is the original version with...
Research 7
Multiplayer Map 1 commentResearch 7 is a four map campaign for Alien Swarm created by Will "Issus" Rogers. This is the original version of this campaign with a fixed download...
Infected Lab X
Multiplayer MapInfected Lab X is a one mission campaign for Alien Swarm made by Herezy. This is a map into an underground laboratory, your squad need to find the exit...
Larnok
Multiplayer MapPlay through three intense missions about the planet Larnok in the galaxy of Vidarnaq. This is the original campaign with a fixed download link, included...
The Beginning
Multiplayer MapThe Beginning is a four map campaign for Alien Swarm by Kenny_WWE. This is a version with a fixed download link, included AIN files. Fully compatible...
Outpost 5
Multiplayer MapOutpost 5 is a one mission asw_tilegen based map by larrybrains. He tried to add enough detail and change it up enough to make it worthwhile. This is...
City 17
Multiplayer MapCity 17 is a five mission Alien Swarm campaign by Mixmedia. It features content from Half-Life 2.
Paranoia
Multiplayer MapParanoia is a three mission campaign created by Eclipse. This is the original Paranoia campaign with a fixed download link, included AIN files and removed...
Tears for Tarnor
Multiplayer MapAn Alien Swarm campaign taking place on the hostile desert planet of Tarnor.
Lana's Escape
Multiplayer MapLana's Escape is a five mission campaign created by JG Finat as Hephalistofene. This is a version with a fixed download link, included AIN files. Fully...
Clear Vision Config
Effects GFX 1 commentThis config turns off some of postprossessing what makes the picture more clear. It turns off bloom, blur, grain and vignette.
Bright Parasite
NPC SkinChanges parasites to render them bright and noticeable. Useful for low end PCs which have Shaders setting on Low. And for players who play on hardcore...
Black and White Color Correction
Effects GFXChanges all color correction in Alien Swarm to black and white
Greenish Color Correction
Effects GFX 2 commentsChanges all color correction in Alien Swarm to be greenish. Feel the game in a new way!
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Popular Addons
EXP & Kills Farm Map
Singleplayer Map 17.47kb
The labyrinth
Multiplayer Map 3.01mb
Beyond Limits -> Updated
Multiplayer Map 151.04mb
Map Overview Loading Screen
Texture 1.35mb
Absolute Madness 4.1
Multiplayer Map 227.45mb
Puzzle Bundle
Multiplayer Map 14.92mb
Blood_Wraith's Random Source Map Compilation
Singleplayer Map 48.31mb
Nest
Multiplayer Map 1.79mb
particles addon
Multiplayer Map 19.56kb
Dead City v 1.2
Multiplayer Map 45.79mb
City 17
Multiplayer Map 201.93mb
Alien Swarm MapPack 1.2
Multiplayer Map 811.8mb
Alien Swarm MapPack 1.2+ to 1.4 Update
Multiplayer Map 658.28mb
Team Fortress 2 Alien Swarm Soundpack
NPC Audio 7.88mb
Orion's Threat
Multiplayer Map 51.01mb
The Beginning
Multiplayer Map 14.98mb
Russian Translation \ Русский перевод
GUI 111.11kb
Ancient Ruins
Multiplayer Map 5.94mb
A Custom HUD
HUD 393.44kb
Delusion
Multiplayer Map 1.08mb