Can you name three reasonable-quality games out there like this that were definitely made in such a way? It costs only $100 to publish a game on Steam, recoupable if you meet a fairly low revenue threshold. You can publish elsewhere with no money up front (e.g. Itch). If this were actually true, and even if 90% of players would just pass based on the AI disclosure (doubtful, and also doubtful that _all_ games made this way would actually disclose it), you'd expect there to be lots of Myst quality games out there; hundred to thousands already, at least a handful of which should _already_ be successful.

Not entirely a rhetorical question. I've found any images need serious review and touch-up at a minimum and usually multiple rounds of revision. The topology on any generated 3D models is generally atrocious. TTS is not tuned for voice acting to an extent it's absolutely no good for that purpose as far I can tell, and that would be a cornerstone of any serious modern "Myst-class" adventure game. I can't comment on music and SFX in particular and have heard secondhand that current models are "all right", but imagine it's probably the same situation: no care taken, you get uselessly mid results. If it's really that easy and that cheap, I'd like to see it.