After the earth had been destroyed by a huge wave of pollution, the surviving robots made an even bigger mess of it by destroying the planet completely with countless wars. A couple of surviving humans had escaped to the moon during the pollution wave. There, they'd gradually changed into aliens. One day, these aliens decided to reconquer the earth. It's 2110 now, and the robots don't know what's happening to them when a whole group of UFO's landing on the earth...! They decide to fight the aliens with what once had ruined the entire humanity: factories and pollution. You can play eight levels in this Tower Defense-like game. For further instructions: see the game itself.
Use your mouse to play this defense and strategy game.