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.

worth a try..

http://psteamproxy.yuanyoumao.com/app/630/

Go ahead and invite anyone you know that lives, (or used to live) in the state of wyoming. all current members are now promoted to officers and can approve new members.

http://gbxforums.gearboxsoftware.com/showthread.php?t=79043


Thanks Goes to Rubber Duck... Thanks Ducky!