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.

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Selected Covers

Heretic DOS Front Cover
Front cover for Heretic
DOOM DOS Front Cover
Front cover for DOOM
Sonic Robo Blast 2 Windows Front Cover
Front cover for Sonic Robo Blast 2
Hexen: Beyond Heretic DOS Front Cover
Front cover for Hexen: Beyond Heretic

Selected Screenshots

Title screen
Screenshot from Heretic
Title screen
Screenshot from DOOM
Title picture
Screenshot from Harmony
Title screen
Screenshot from Hexen: Beyond Heretic
Game group created by Riamus (8121), additional games added to group by WildKard (12130), Alsy (17979), Sciere (434696), erc (472), Kabushi (179288), Scaryfun (14670), JudgeDeadd (17353) and Ace of Sevens (4224)