You are the sun in Orbitrunner, which means you control all the planets! To play the game, just use your mouse to move the sun around. The planets will adjust. Each level has a goal, and you have to meet that goal to move onto the next level. For instance, the first goal is to make one planet revolve around you. You just keep your sun in the middle of the screen and the planet will create its own revolution pattern. However, after that, you have to deal with multiple planets. Each planet has its own gravitational field, and these fields can act on each other.