You can't help but love this game. Instead of being like some other boring first-person shooter that only allows you to play the same levels in a campaign over and over, Left 4 Dead is like Team Fortress 2-A co-op, although, completely unique and different. You get to be 1 of 4 characters, choose from 4 game modes, and play in 6 diverse maps, fighting off infected in a movie-like scenario, with an AI dubbed the "Director" changing up the outcomes and placements of enemies, increasing replay value, and creating a divergent experience each time you play a level. Left 4 Dead has received the honor of Best Multiplayer Game of 2008 and Computer Game of the Year numerous times with many more awards, and I recommend it to you!