Really? I don't know what he's done aside from id and Armadillo, and he's obviously a mathematical genius, but I can't quite see Doom, Quake, etc. and their underlying technology as "prime mover" material. And I actually think it's kind of hilarious that Fountainhead Entertainment would make "Doom RPG", or even be an entertainment company to begin with. Rand, I'm sure, is rolling in her grave.