Left 4 Dead is a first person shooter game for PC and XBOX360, created by the developers who made Counter Strike:Condition Zero and Counter Strike:Source (the most popular first person multi player shooter ever).
In Left 4 Dead, you can play as the good guys, shooting zombies, OR the Zombies themselves and be mad eating brains. (Correction: sorry, no brains are actually being eaten in the game) You either play as one of the Survivors or the Infected.
If you are into Zombie killings game, don’t miss out the demo that has just been released from Valve through Steam.
Go to Left 4 Dead official page for more details about the game and to download the demo.