When the moon tore apart, the sky bled red with light, ushering in an apocalyptic new age…and to survive, you must fight. As a mercenary, defend Earth through high-speed combat against corrupted robots in a series of missions from the cockpit of your Arsenal, a fully customizable mech. Equip your Arsenal with a vast array of parts and weapons, obtain more from downed enemy Arsenals, and swap them on the fly to suit your strategy in the face of ever-rising threats.