Medusa is a region or planet under a twilight shroud. Liquid water can be found on its surface, which features basins and cliffs.
It features as a multiplayer map in StarCraft: Brood War, supporting up to six players.
Brood War Enlarged Map Images. StarCraft Compendium. Accessed on 2008-30-09
The planet is likely named after Medusa herself, one of the three Gorgon sisters of Greek mythology.