It features fourteen new levels, a new soundtrack composed by Method of the W.O.R.M, replaces the original Quake weapons with new designs, and all of the enemies in the game have been replaced with cyborgclones of popular X-Men characters, each with their own super powers; for example, Wolverine has his healing factor, Archangel is immune to rockets, etc. X-Men: The Ravages of Apocalypse was one of the first total conversions to feature a high profile property.
X-Men: The Ravages of Apocalypse was released as freeware in July 2006. The game's source code was also released, but under an ambiguous license. Modifications have been made to the game to allow it to run as a standalone title. The freeware release includes a walkthrough of the game's levels, as well as a patch which adds new gameplay features and fixes glitches from the original version.