Plot: Brutal Doom is a game mod for the 1993 first-person shooter Doom created by the Brazilian developer Sergeant Mark IV. It adds numerous gameplay elements and graphical effects. The mod has been in development since 2010, and continues to release new updates. Wikipedia
Plot: Doom II, also known as Doom II: Hell on Earth is a first-person shooter game by id Software. It was originally released for MS-DOS computers in 1994 and Macintosh computers in 1995. Unlike the original Doom, which was initially only available through shareware and mail order, Doom II was sold in stores...
Plot: Doom 3: BFG Edition is a remaster version of Doom 3, released worldwide in October 2012 for Microsoft Windows, PlayStation 3, and Xbox 360. The BFG Edition features enhanced graphics, better audio, a checkpoint save system, and support for 3D displays and head-mounted displays. Wikipedia