This isn't your average zombie game. Set on a tropical island where things have gone awry, Dead Island ($60) puts you in the shoes of one of four people on the island who are immune to the zombie outbreak, and gives you an open, non-linear world to explore as you use objects and the environment to dispatch with the undead while attempting to defend survivors and learn the truth about what's really going on. For added fun, get a four-player co-op game going and share in the gore — after all, you wouldn't want to go an island vacation alone, would you?