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 in relation to Valve's engines. 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 the Quake engine, is an engine created by  id Software for Quake, and later modified with new features & improvements 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 (colloquially id Tech 2.5), developed for Quake II and used by several other games

Both version of 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