It's not just a game. It's The Greatest story ever. Once You start this game, You feel like You're one of them. You feel like You're in a real infected world. I played this game year ago and until now i can't stop thinking about it. I think there's no game can beat this one. Only who played this game know how perfection this game had reached. For those who look for good games and didn't try this masterpiece. This one not good, it's great.