I'm no fan of this kind of horror game, actually, but I think this is professional made like the others in the comment said. Maybe I accidentally found the secret path so I reached to the end without doing much tasks beside took a drawer key and some batteries.
Not sure if you want this, but you can add a "dim light" around the player character when they are in the dark and no light at all, like what Amnesia: The Dark Descent did, so that the player do not get lost at all even in the dark, and the player still feel tense when navigating the house.
Anyway, good luck with your game dev journey!