I liked the setting and the background music was quiet fitting but I am not a big fan of fake "retro look" shaders.
Movement could be snappier and I ended up looking at the mini map most of the time, so the diminishing sight at lower sanity levels did not really had much of an impact. Its a nice touch tho. The mini map can be off by an tile but you already noted that in the description. I found another bug that could be related to that. I ended up being on the same tile as a skeleton which then shred me to peaces but I could not harm it.
Nitpicking aside in overall a solid entry.