This is a first-person shooter in which players assume the role of interplanetary soldiers who must salvage mankind's future. Players use electricity guns, pistols, machine guns, flamethrowers, and plasma grenades to destroy robot drones and enemy soldiers. Frenetic battles are highlighted by realistic gunfire and screams of pain; enemies emit large splashes of blood when shot. The game also depicts intense close-up attacks against enemies: snapping necks, slicing throats, stabbing or gouging eyes. Some weapons (e.g., boltgun and sniper rifle) can decapitate enemy soldiers with headshots, and one blood-splattered environment depicts severed human limbs. Language such as "f*ck" and "sh*t" can be heard in the dialogue.