I enjoyed this games of yours. It felt at times that you had to take a chance and may end up in a poor situation due to randomness outside of your control, but I may just need to learn the game better because as I played I was able to reduce these instances. I did have times where I would spawn on a level with no choice but to take damage, which can be frustrating and seems entirely out of the player's control (see screenshot below). It took a while to figure out all of the mechanics while dying along the way, a quick tutorial (even written) could go a long way for player retention.
I think it would be helpful if the player was given a little more information, particularly map boundaries, tiles that don't exist but are in your vision, and for QoL to reveal the tile under a wraith since it can be deduced from their threatened tiles already.
One thing I couldn't quite figure out is how new monster generation works, and also what it means for a tile to have the double wall around it (it seemed like this would show up after stepping onto a tile for the second time?). I guess there is still more for me to learn here.
Overall quite an enjoyable game, thanks for making it :-)