Alien Swarm, a brand new shooter game has hit Steam at an unbeatable price – Free! Yes you can download Alien Swarm full version game for free starting today! Alien Swarm is an Unreal mod that has seen some Source Engine enhancements, and was developed by members of Valve who were brought up from the community.

Just log into Steam, search Alien Swarm and start downloading. According to the games trailer, Alien Swarm contains 4 player co-op, swarms of aliens and a shipload of weapons. The game is only available for PC at the moment, but it contains free online co-op, Steamworks (access your save data anywhere you have Steam) and over 60 achievements.


AlienSwarm thrusts players into 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.

Check out the trailer of AlienSwarm if you prefer to have a look before downloading

Download Alien Swarm for free

To be able to play Alien Swarm, you would first need to download Steam. Download Steam for Windows XP/Vista/7 (or here for Mac).

Once you have installed Steam, you can Download Alien Swarm [Mirror]

Was this article helpful?