Since that dark day, almost all of the human race has mutated into zombies hungry for brains! You are now alone and will have to try to survive as long as possible by fending off the countless waves of undead. Select your playground (Park, Train Station, Cross Road, Maze, ...) as well as the time of day (a xp bonus is granted at night). Collect various items and new weapons (shotgun, sniper, submachine gun, ...) to enhance your chances of survival. As you level up, you'll gain skill points that unlock new abilities.