Let the Obsession begin. Again. This time, the entire forces of the netherworld have overrun Earth. To save her, you must descend into the stygian depths of Hell itself! Battle mightier, nastier, deadlier demons and monsters. Use more powerful weapons. Survive more mind-blowing explosions and more of the bloodiest, fiercest, most awesome blastfest ever! Play DOOM II solo, with two people over a modem, or with up to four players over a LAN (supporting IPX protocol). No matter which way you choose, get ready for adrenaline-pumping, action-packed excitement that's sure to give your heart a real workout.
D2 Extreme is a 32-level Doom 2 game created on August 12, 1996. It replaces all monsters, weapons and levels, and uses a DeHackEd patch. It is a follow up to Doom2X and Ultra Doom2X. While Ultra Doom2X focused on all new gameplay with the original Doom 2 levels, Doom2X-treme focuses on these weapon and enemy enhancements in "Best Of" series of 32 levels created by other designers.