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A / Xbox 360

"Everything changed with the arrival of Voyageur. It was originally a Golden Age that allowed our civilization to establish itself in the solar system. But it could not last. Something we put ashore broke. The survivors built a city in the Voyageur before returning explore our ancient worlds where only mortal enemies awaited them.
You are a Guardian, protector of last haven of life on Earth, armed with incredible powers. You must defend the city. Defeat our enemies. And look what we have lost. Be strong! "