Moon Tycoon is a strategy game reminiscent of SimCity. Instead of building a city on Earth, you're colonizing the moon.
The game is entirely 3D, which gives the player a freedom of movement not usually present in a SimCity type of game. Players have to accommodate the various needs of the colonists with finite resources that can be dedicated to developing things like mining, tourism, and habitat.
Diplomacy and trade are also major components of the game. The moon colony can interact with the folks on Earth or with other space colonies.