Kotaku

Alien Swarm

All the Latest Game Footage and Images from Alien Swarm 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 ...
GameSpot

Alien Swarm: Reactive Drop

Seven long years – or rather eight, at this time of writing – were enough to brood over how much one’s expectations had been let down. To me, Alien Swarm represented so much promise, not only for ...
Digit

Valve’s free-to-play Alien Swarm co-op shooter also features FPS mode

The absolutely free 4-player co-op from Valve, entitled Alien Swarm, also offers first person shooter gameplay, if the player so desires. Using simple console commands (listed below), a player can ...
Kotaku

Alien Swarm: Reactive Drop

All the Latest Game Footage and Images from Alien Swarm: Reactive Drop Alien Swarm: Reactive Drop is a FREE and open source cooperative top down shooter. The player plays with other marines against ...