Technology-driven global war has left most survivors living in ruined cities sealed behind steel gates, separated from each other and from the deadly creatures that roam the wastelands. The only thing standing between the city and what is outside are remotely operated war machines called ARMZ. You are their operator. A VR wave shooter that puts you inside a heavily armed Battle Mech defending the city walls against an endless assault of human-machine hybrids with no self-preservation instinct and nothing but the drive to destroy.