id Software reiterated at its annual QuakeCon event that still intends to release the Doom 3 source code after Rage has shipped. The company has been saying this for awhile, but fans were delighted to hear that the company is still thinking about it. During his QuakeCon keynote speech yesterday, id Software co-founder John Carmack announced that parent company ZeniMax had approved the source release, and that it will arrive some time after Rage's October launch.
While Zenimax has approved the eventual release of the code, Carmack said that it still needs to be "run by legal." Carmack also wants to take some extra time to clean the code up. Finally, Carmack called on other games developers to release their source code, as it helps those who want to get into game development learn the ropes with real-world game engines.
While the engine source code will be open and free, the DOOM 3's core assets (levels, artwork, sounds, etc.) will not be part of the package.