Legacy was originally written as a fork of DOSDoom introducing mouse-look, jumping, a console, 32 player deathmatch, skins and a native win32 mode. Fabris developed a glide front-end, one of the first hardware-accelerated renderers. Hurdler was originally introduced to develop GL support, however as time went by, Hurdler increasingly maintained the project. Fabris has now moved on to pastures new, with Boris making an occasional appearance.
Boom compatibility was introduced later by Stephen "SoM" McGranahan, who also introduced Heretic support by merging in code from Heretic/Hexen; and FraggleScript from the port SMMU. SoM also developed some novel modifications, including several varieties of 3D floors and deep water before settling on the current implementation.
Since 2003, the Legacy code-base is being re-written in C++. This is designed to improve the tolerance of the code base to new features.
* TCP/IP multiplayer networking (including a master server for Internet game searches)
* Nearly complete Boom and Heretic support
* OpenGL rendering
* Higher resolutions
* DirectSound 3D
* Console with support for key bindings (Quake-style bindings)
* FraggleScript for scripting
* 3D floors, water, and coloured lighting
* Free look and crosshairs
* 32 Players (including support for custom skins)
* Supports Linux, MacOS and Windows and others
* 2 player splitscreen co-op or deathmatch
* Ability to play Audio CDs during play