Interesting! I’ve toyed with the same thought, although as a 2D game and not 3D. I’ve considered trying to reimplement Zork as a top-down game, similar to traditional roguelikes (which are turn-based dungeon crawlers). I actually think that would work surprisingly well as a game (non-IF as it might be).
This question (albeit reversed) is currently being discussed here: Opinions on Bitsy? Is it IF? - #17 by pbparjeter – I also linked to here from there.