Orbital Defense

This is a 2.5D tower defense game set in a fictional solar system. The system is under attack from an advanced alien race whose goal is to bombard and sterilize all planets. The player must build weapon platforms and resource stations around the various planets, moons, and asteroids.

Contrary to typical tower defense games, most build locations are not static. They rotate around their host object which in turn rotates around either its host planet or sun. This means you need to strategically place weapon platforms to ensure all areas are covered.