Pit a squad of brave Space warriors against the menace of the alien Overlord and his robotic footsoldiers. A fast-paced cooperative game for 1-4 players. There are three levels to complete, each offering a different challenge. In order to win a game you must successfully fulfill the mission objective for a level. Advance rules and challenge cards allow you to tailor the difficulty of each level, and all three levels can be combined into a single campaign – the true test of a Space hero.