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Your mission as the human supreme commander in this exciting solitaire game is fourfold: First, rebuild and retool the peaceful human economy and set it on a war footing. Second, develop and build mighty starships of war to bring the fight to the Xyl. Third, develop new technologies that could turn the titide of the war.. or turn out to be worthless dead-ends. And finally, destroy the 4 Flagships of the 4 Grand Fleets, or if you are bold (or desperate) enough, send an fleet to destroy the AI Core.