Set in the immediate aftermath of the zombie apocalypse, Left 4 Dead's survival co-op mode lets up to four players blast a path through the swarming zombie hordes and terrifying mutant monsters. Guide your survivors across the rooftops of an abandoned metropolis, through rural ghost towns and pitch-black forests in your quest to escape a devastated Ground Zero crawling with infected enemies.
Left 4 Dead is a Zombie FPS by Valve for Windows and Xbox 360. It's a great game and has very fun multiplayer. This game is about, well, zombies! Who try to kill and eat the survivors.