 Two game modes can be played, the first is Arcade Mode and entails surviving for as long as possible against an onslaught of zombies, this mode has been compared to "".In the Story Mode, the player must scavenge for supplies, eat due to hunger and sleep to prevent fatigue, as well as improve skills to increase the chances of continued survival.In addition to the zombie horde, two factions are present on the city streets; the Rebels and SWAT.