Apart from the vibe-coded stuff (though I guess that was due to it being a test run rather than something solid) this is pretty neat! I don't think anyone will really use it for competitive games (since you can't edit the levels), but I see how that would make it much easier to do virtual walkthroughs. It's cheap, relatively easy and uses a lot less resources, I imagine, than using classic rendering techniques. The environment itself reminds me a bit of the levels in SteamVR, where Valve digitised some locations for you to visit on your own.