Doom 2 is being integrated with the packages for Doom 2 (Enhanced), the Master Levels for Doom 2, and Final Doom.

Doom RPG is one of those odd side-stories in videogame history, a project born from id Software co-founder John Carmack's relentlessly tinkering nature.

Doom and Quake developer id Software is bundling multiple versions of its games together on Steam to make the consumer experience a little less confusing.