Loading...

Alien Swarm is a game and Source SDK release from a group of talented designers at Valve who were hired from the Mod community. Available free of charge, the game 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 coun...
Also known as: AS
Alien Swarm was released on July 10, 2010.
Alien Swarm takes about 4 hours for the main story, or around 4 hours for full completion.
Alien Swarm is available on PC (Microsoft Windows).
Yes — Alien Swarm supports Multiplayer, Co-operative.
Alien Swarm was developed by Valve.
Alien Swarm is rated M by ESRB.