This is a great concept, and I definitely had fun playing it! Good ol’ dungeon crawling, hell yeah!
The navigation mechanic is an interesting one, and I enjoyed the challenge of having to manage my steps. Unless I’m missing something obvious though, I believe the map would’ve benefited from a marker showing where you currently were, as it didn’t seem to start me off at my current location, but rather in a corner.
SAPI speech may need a bit of adjustment, as currently moving to another menu item doesn’t interrupt the first one. Of course, when using NVDA, that is not an issue.