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

Delaweare Macintosh Front Cover
Front cover for Delaweare
Perdition's Gate DOS Front Cover
Front cover for Perdition's Gate
Final DOOM PlayStation Front Cover
Front cover for Final DOOM
Hexen: Beyond Heretic DOS Front Cover
Front cover for Hexen: Beyond Heretic
Chex Quest DOS Front Cover
Front cover for Chex Quest

Selected Screenshots

Title screen. Unusually, there's no music playing.
Screenshot from Delaweare
Obligatory title screen
Screenshot from Perdition's Gate
Title screen
Screenshot from Final DOOM
Title screen
Screenshot from Hexen: Beyond Heretic
Baby Flemoids from the intro cutscene
Screenshot from Chex Quest
Game group created by Riamus (8121), additional games added to group by WildKard (12131), Alsy (17313), Sciere (408615), erc (472), Kabushi (170472), Scaryfun (14547), JudgeDeadd (16894) and Ace of Sevens (4225)