UFO: Aftershock GOG.COM Key GLOBAL

The year is 2054. Fifty years ago, something terrible happened, resulting in the Earth's surface becoming uninhabitable. The remnants of humankind escaped to an immense flying island, the Laputa. However a revolt against increasingly rigid and corrupt human leadership of the island escalated into a conflict that eventually destroyed it. The survivors of the survivors flee once again. Can they reclaim the Earth from the unknown forces now holding her in their grasp?