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.
Simple reskin which purpose is to make Antlion Guards to fit style of the game. To install it, put it in "reactivedrop\addons".
An 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...
Replace Vegas with Flynn from the Alien Swarm mod for Unreal Tournament 2004.
The portraits of marines are changed into the topic of The Walking Dead. Sarge-Rick Jaeger-Daryl Wildcat-Maggie Wofle-Abraham Faith-Tara Bastille-Glenn...
We 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...
This 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 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 is a two map Alien Swarm campaign by Jarhchief. This version has the unchanged BSP files but fixed TXT files. Fixed file conflicts and...
Replaces color correction to sepia effect in Orion's Threat campaign map 1.
Hessian 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...
New fresh Alien Swarm map. Many unique ideas and stuff, huge scripting usage. Enjoy and have Fun!
Nitro 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 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 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...
Play 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 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 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 is a five mission Alien Swarm campaign by Mixmedia. It features content from Half-Life 2.
Paranoia is a three mission campaign created by Eclipse. This is the original Paranoia campaign with a fixed download link, included AIN files and removed...
An Alien Swarm campaign taking place on the hostile desert planet of Tarnor.
Lana'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...
This config turns off some of postprossessing what makes the picture more clear. It turns off bloom, blur, grain and vignette.
Changes 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...
Changes all color correction in Alien Swarm to black and white
Changes all color correction in Alien Swarm to be greenish. Feel the game in a new way!