Analysis of information sources in references of the Wikipedia article "Build (game engine)" in English language version.
On April 1, 2005 3D Realms released the source code for SW's engine under GPL. The timing of the source release lead to believe it was an April fools joke, it spawned its first source port a day later entitled JFShadowWarrior and had the improvements of JFDuke3D and Linux support.
One of the team said to think of it a bit like BuildGDX, as Raze "shares the renderer, the sound system and the input/system interface code across games".
…I [JonoF] did have a week head start…
You're getting two builds: patched (Enhanced) and retail (Original) for those of you who prefer an unaltered experience as a bonus. Both builds are running on DOSBox with a custom configuration tool. The Enhanced build features fixes introduced in EGwhaven, a must-have community project, which addresses an array of bugs and issues with the game (we'd like to thank ETTiNGRiNDER for the contribution to this release). Additionally, the controls are re-mapped to what you'd expect to see as a default in a first-person game nowadays.
The only remaining part of the game is a 4-level demo with 7 weapons and 10 enemies, released just before IntraCorp's closure.... There's also a mod called Fatedoom that transports the demo's content into Doom.
…I [JonoF] did have a week head start…