"Carmack: On the thematic side of things, I pushed certainly for the demonic aspect of it. That's still something that I feel good about, looking back: In later games and later times, when games get attacked with some of the moral ambiguity or actual negativity about what you're doing, I always felt good about the decision that in Doom, you're fighting demons. There's no gray area here, it is black and white, you're the good guys, they're the bad guys and everything that you're doing to them is fully deserved. There was the little bit of undercurrent, especially when I was younger and I was a bit more aggressive. I think at one point, I said it was fun offending the easily offended. Poking at the fundamentalists was at least a sub-current of picking the demons, and the pentagrams, and the goat's heads and all the things in there. So I was certainly supportive in pushing that but obviously all the actual instantiations of them were done by the artists, Kevin and Adrian."