Going back to the OP, in fact, I have absolutely nothing against "demake"-ish ports to less advanced engines (remember that
unauthorized Sega Genesis port of Duke Nukem 3D?), it's that
ROTT and
Doom feel very different despite being generally in the same genre category. While using the
Doom engine for a
ROTT remake is obviously advantageous (as proved by
Return of the Triad), doing the opposite seems a wee bit strange to me, although come to think of it, if you imagine a game with
Doom monsters and
ROTT gameplay, that could have been really awesome
