The annual Electronic Entertainment Expo is wrapping up today. At the event game developer, Deep Silver, released a new trailer for their upcoming zombie game, Dead Island. Watch the trailer below. Dead Island is a non-linear, open world game and features 4-player co-op, weapons customization, and upgradeable characters. In the game players are trapped on an island resort and must battle for survival against zombie hordes. Dead Island will be released later this year on PlayStation 3, Xbox 360, and PC.