Sadly this won't work with NVDA or Narrator, but if you have JAWS, or at least the demo version of JAWS, it works with that, up until you get to the parts using the inventory at least, including the cauldron, unfortunately, which is why I couldn't get past the first quest.
Navigation is difficult because moving doesn't pan the sounds that environmental landmarks make, meaning that you don't have a good idea of your location in comparison to other objects in the room. Also, there is no wall bump sound, so it can be hard to tell when you are at the edge of a map, and important interactables like doors and items don't seem to make any noise.
The accessible indicator with V didn't really pan enough to give a good direction, and partly this is do to the small size of the maps I think. It also didn't use the lower pitch to indicate when the objective was behind the player, so I couldn't really tell what direction it was easily. The volume did go down based on distance though, so that was good.
You can't repeat the last spoken message if you missed it, and you can't check your current objective again.
The tutorial doesn't show the keys in a list, so if you can't remember it all at once, you are kind of out of luck. It also doesn't include the speech keys like T and R.
The theme is really cool, and I like the general atmosphere.
The music is excellent and the sounds are high quality.
The dialogue seemed a bit stilted, with too much repetition, but still connected me to the characters.
The ability to stop speech was a nice touch.