Doom is nothing's sequel.
Spiritual successor, built by the same company, in the same nebulous genre. Wolf3D was a FPS, it was the first successful one. Anyways, this 'genealogy of games' thing is a semantic argument, and so is kind of pointless. What criteria determine if this game is grandfather to that game, and so on? Anyway, if we're going to have it, I don't think we should be having it in Zolthorg's thread.
Anyway, I like your runcycle, Zol. It's got a sort of charm to it.