UFO ENEMY KNOWN
SCIWORLDS
MoreHelp the aliens invade Earth in this procedurally-generated, infinite, 3D shooter game. Featuring fully destructible cityscapes and a wide variety of destruction-wreaking, sometimes comical, weapons. Visit (rampage and destroy) the cities of future Earth and Mars block by block. Chaotic battle scenes as rubble and military vehicles pile up. Customize your UFO and character with a wide choice of ships, wraps and character accessories, all available for free by completing in-game missions.
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