maybe try out Unreal or Unity, since they should be the easiest to make the scene real-time renderable, walk troughs I've always skipped, animation in general is terrible for me, I can't leave my pc rendering for two days just to have 30 seconds of 1080p video :D although that's 600 frames, 5 minutes each for all the effects(GI, AO, high AA ...)
RE: Murphy House Walk Through Part 1 - WIP