Rage, John Carmack's MegaTexture technical spectacle, is not the alpha and omega of its intellectual property, id Software co-founder Tim Willits told us during this week's QuakeCon 2013 event in Dallas, Texas.

"I'm proud of what we did, I'm proud of the universe that we built. The franchise is not dead," Willits said. "We're not doing anything immediately with it, but when I designed the universe, I designed it in such a way that it would be easy to step back into. I'm still proud that we did something that was different - it wasn't like the games that we've done in the past."

Willits also said that Rage's development fueled innovations in id Tech 5 that continue to pay off as the engine is adapted for use on next-gen consoles and in other Bethesda products. "We really tried to do one engine that worked for everything," he said. "It really helps establish a robust tech that, as John [Carmack] said last night, we're adding stuff into it based on the new consoles, and it's allowed people to make different games because the technology is flexible and robust and works on everything."