The invasion was just the beginning. The ruthless XYRON empire is fleeing a dying star, and they've initiated the ultimate hostile takeover: the complete terraforming of our planet. They are draining Earth's core energy to fuel a terrifying process that turns our world alien. As an elite soldier, you must fight on two fronts: against the endless waves of invaders and against a planet that is itself becoming a weapon. Your mission: disrupt the terraforming, destroy their forces, and survive Alien Earth.