If you are looking for multiplayer, then Left 4 Dead. That is what this game was made for. Single player is ok, but playing with friends makes the game fantastic.

I am not sure which system you use, but I have played both the X360 and PC versions. The PC version is far superior both in graphics and the way the game handles. Plus there will be free mods to help with replayability.

I don't have a Xbox 360 and I say Left 4 Dead!!! XD

i honestly think you should get left 4 dead

i guess left for dead