A moon orbiting a gas giant.

This article is about natural satellites in general. For Earth's moon, see Moon (Earth).

Some planets in Spore are orbited by a moon. They are usually found right next to a gas giant, but are also located at your homeworld as well as a few other random planets. Other than the fact that the moons are orbiting another planet, they are the same as a regular planet.


In the 2006 E3 video, Will Wright pulls his UFO up to an inhabited moon orbiting a large gas giant. It is later revealed that the moon was a colony of an alien civilization called Greevils.

The surface of a T-3 moon.


  • On moons orbiting gas giants, at certain times of the day, the gas giant covers most of the sky and blocks out the sun, creating an artificial night.
  • Your homeworld will always have a T-0 moon. The gas giant in your Solar System will not, however many other gas giants do.
  • Destroying a planet with a Planet Buster will also destroy its moon, but destroying a moon will not destroy the planet.
  • Occasionally, the planets and moons may line up, make transitions around the home star or binary, and even undergo a solar eclipse.
  • The game does not appear to differentiate planets from moons; they are all referred to as planets.
  • Moons with a T-score of 1 are rare, and moons with a T-score of 2 or 3 are practically nonexistent unless terraformed by the player.
  • Empire homeworlds can apparently never be moons, unless uplifted by a Monolith.

A planet viewed from its moon.