The Abyss

DOOM The Abyss, also known as The Abyss, is a 24-map megawad released in September 1995 for Doom II by J.M.P van Waveren (MrElusive) and H2SO4, co-creators of the Omicron Bot for Quake. As of this writing, The Abyss is their only known Doom work. The Abyss was relatively unknown for years after its release, and was never released in any known compilation, nor mentioned in any Usenet posts. It was rediscovered in the mid-2000s through a crawl of an id Software public staff server. The majority of the maps are non-linear "dungeons" which rely on secret passageways and switch puzzles, and have multiple paths that the player can take to complete a level.

Levels

 * MAP01: Pink Horde by H2SO4
 * MAP02: The Catacombs by H2SO4
 * MAP03: Avernus by H2SO4
 * MAP04: The Nunnery by MrElusive
 * MAP05: Imp Madness by MrElusive
 * MAP06: Not Level by MrElusive
 * MAP07: The Cube by H2SO4
 * MAP08: The Theatre by MrElusive
 * MAP09: Bloodstream by MrElusive
 * MAP10: Hangar by H2SO4 (Modified John Romero level)
 * MAP11: Stone Henge by MrElusive
 * MAP12: The Square by H2SO4
 * MAP13: The Library (joint effort)
 * MAP14: Arabesque (joint effort)
 * MAP15: Satan's Cross by H2SO4
 * MAP16: The Grand Tower (joint effort)
 * MAP17: Light And Darkness (joint effort)
 * MAP18: Short 'n Sweet by MrElusive
 * MAP19: The Pits Of Doom by MrElusive
 * MAP20: The Cray (joint effort)
 * MAP21: Heretic Factor (joint effort)
 * MAP22: Basilica (joint effort)
 * MAP31: The Temple by H2SO4 (Modified Sandy Petersen level)
 * MAP32: Spider Bowl by MrElusive

Bugs
Some older source ports, such as Skulltag, may read in the graphics incorrectly due to the arrangement of the lumps in the WAD directory, causing all textured surfaces to be out of place or corrupted. A fixed version was distributed as, but has since been lost due to the shutdown of several community file hosting services.

Trivia

 * J.M.P van Waveren went on to work at id Software as Technical Director during 's development, where he developed the AI system used there and in Doom 3. He is now Senior Engineer at.
 * Two of the maps are modified id Software levels. This may explain its lack of inclusion in archives.
 * Notable editors used include, a landscape generation program used to create the title screen, help screen, and in-game skies, and (listed as T-DRAW in the TXT, possibly from the default directory name), an ANSI editor used for editing the ENDOOM text.

Links

 * The Abyss at van Waveren's personal website.