"EDuke" was a semi-official branch of "Duke Nukem 3D" that was released as a patch as "Duke Nukem 3D" v2.0 for "Atomic Edition" users on July 28, 2000. It included a demo mod made by several beta testers. It focused primarily on enhancing the CON scripting language in ways which allowed those modifying the game to do much more with the system than originally possible. Though a further version was planned, it never made it out of beta. It was eventually cancelled due to programmer time constraints. About a month after the release of the "Duke Nukem 3D" source code, "Blood" project manager Matt Saettler released the source code for both "EDuke" v2.0 and EDuke v2.1, the test version of which would have eventually become the next "EDuke" release, under the GPL.