id Tech 2

id Tech 2 ▶

GoldSrc ▶ Source ▶ Source 2 id Tech 3 ▶ id Tech 4 ▶  id Tech 5 ▶  id Tech 6 ▶  id Tech 7 ▶  id Tech 8

id Tech 2

Developer(s)

id Software

Release date(s)

21 December 1999 (Source code release)

Platform(s)

MS-DOS, AmigaOS, Windows, macOS, Linux, Xbox 360, Xbox One, Xbox Series X/S, PlayStation 4, PlayStation 5

Written in

C, Assembly (for software rendering & optimization)

License

GNU GPL-2.0-or-later

Links

Quake source code
Quake 2 source code

Successor

GoldSrc
id Tech 3

Todo: Mention FTE, a notable fork of the Quake I engine. See Quake#Source ports for more info.

This page documents information about an engine not developed by Valve. This information is documented here because it has technical and/or historical relevance to Valve's engines.

id Tech 2, also known as Quake engine, is an engine created by  id Software for Quake, and later modified for Quake II. It was used as the foundation for GoldSrc and all subsequent Valve engines.

id Tech 2 consists of the following two "branches":

• The Quake Engine, developed for Quake and used by several other games
• The Quake II Engine, developed for Quake II and used by several other games

Both id Tech 2 engines were later made open-source under the GNU GPL 2.0 (or later) license.

See also

• id Tech 3, the successor to id Tech 2 developed for Quake III.
• id Tech 4, developed for Doom 3