This game is great.  The sound is terrific, the graphics are good, and the interface is very easy to use.  The best thing about it is the creepy feeling you get when you play it. Try it with the lights out, late at night, when no one is home.  One minor problem that novice players should  note. This game can be very hard. If you are used to Quake-type games, be  prepared to change your style of play. The guns in this game degrade and  break VERY quickly, and there isn't that much ammo to go around anyway. You  should find other ways to get around this problem. It is more realistic in  a sense, because who in the hell is going to want to take on all of these  zombies and killer robots anyway? Part of the fun is avoiding and getting  away from these nasty monsters. Other than the difficulty factor, this game  is near perfect.