Theory of Planet Evolution is an Android game that falls under the educational subcategory of games. It is developed by UnknownProjectX and is available for free. The game is a highly customizable solar system building game that allows you to use your imagination to build your dream universe.

One of the main features of the game is that there are no limitations to building the solar system. You can customize it in any way you want, and the only limitation is the time you have to do it. The game provides a fun and engaging way to learn about the planets and the solar system. It is a great way to spark curiosity and interest in astronomy and space exploration.