REVOLUTIONARY TOWER DEFENSE
DANGER! Earth is under attack from a vast armada of flying saucers. Only you can stop the invasion of these relentless alien monsters – don’t let a single one through!
Get ready for a revolution in tower defense that will send you spinning. Defend the solar system by sending satellites into orbit around planets, moons and space stations. Create the perfect defense by rotating orbits to move your satellites into the best positions.
Bellow you can see the release date and system requirements: