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3D Engine: id Tech 1

Group Description

Games using the id Tech 1 graphics engine (formerly known as the "DOOM engine") (original or modified) by iD Software, Inc..

Doom's source code was released to the public on December 23, 1997 under a license allowing noncommercial use; in 1999, it was re-released under the GNU General Public License. This led to the development of numerous source ports adding new features to the engine.

Some facts:
  • It was the first 3D game engine that allowed variable heights for floors and ceilings. However, it only allowed one floor or ceiling per area, making multi-storied levels impossible.
  • John Carmack experimented with 16 bit textures, but found the overhead unacceptable for the game.

Selected Covers

Strife DOS Front Cover
Front cover for Strife
Delaweare Macintosh Front Cover
Front cover for Delaweare
DOOM Classic Complete Windows Front Cover
Front cover for DOOM Classic Complete

Selected Screenshots

Title sequence
Screenshot from Foreverhood
Title picture
Screenshot from Harmony
Title Screen
Screenshot from Strife
Starting screen
Screenshot from The Adventures of Square
Intro sequence
Screenshot from Nocturne in Yellow
Game group created by Riamus (8519), additional games added to group by Shoddyan (14312), Plokite_Wolf (34459), Alsy (18647), Sciere (663723), erc (484), Kabushi (248946), Scaryfun (17979), JudgeDeadd (26771) and Ace of Sevens (4471)