X-Men: The Ravages Of Apocalypse, developed by Zero Gravity Entertainment and released by WizardWorks Software, is a commercial total conversion of the Quake engine released in 1997. Replacing the old maps and weapons are new designs, and all of the enemies in the game have been replaced with cyborg clones of popular X-Men characters, all with their own special powers—for example Archangel is immune to rockets, Wolverine has his healing factor, etc. The Ravages of Apocalypse was one of the first total conversions to feature a high profile property.