Purgatory

Purgatory is a volcanic planet in Unreal Championship, UT2003, and UT2004.

Although levels set on Purgatory appear in UT2003/4, the planet is only named in UC, and used only in its storyline. According to UC, a team of Nightmare (called "Black Legion" in UT2003/4, simply "Nightmare" in UC) is from Purgatory.