Update: Shacknews has quote from 3D Realms' George Broussard saying that this is the result of some confusion, and is not true, the story going on to clarify that DNF is using a 100% in-house engine. - Original story: Listening through the entirety of the Take Two quarterly earnings conference call (thanks GameSurf) offers a startling revelation. A question about a Duke Nukem Forever release date, which naturally was not provided, elicited the casual remark that the game is "using the DOOM 3 technology, which is finished." 3D Realms' long-in-development shooter started as a Quake engine game, before switching to the Unreal engine. There you go -- proof that even dry conference calls can be exciting.