This is a first-person shooter in which players assume the role of civilians and mercenaries fighting a zombie outbreak in Europe. Players use firearms, explosives, flamethrowers, and melee weapons (e.g., swords, buzz saws) to kills waves of mutated zombie creatures. Battles are frenetic with realistic gunfire and large explosions; certain attacks are highlighted by slow-motion effects. Large blood-splatter effects occur frequently as zombies are decapitated and/or dismembered; several environments depict large blood stains amid mutilated bodies. Some zombie creatures are depicted partially nude with exposed buttocks (no genitalia is shown). The word “sh*t” is heard in the dialogue.