The Moon, also known as Luna, is Earth's single natural satellite and is the setting of The Alien Intruder by Robert Parker. Taking place in the future when Russia and the US operate manned lunar bases, the adventure deals with dangerous alien beings penetrating the base.
Other authors mention the Moon in their adventures:
- The Rescue Mission by Donald Brown includes "a glorious painting of the Earth rising on the Moon."
- Artemis, virgin goddess of the moon, appears in DharmaQuest.