Game have potential, I like the game as an old school dungeon crawler, good thing you didn't made it as a VN, I have some feedback/suggestions, as the game is a horror haunted house theme, then you can make the story about a satanic worshipping lunatic that worshipped baphomet for satanic magic powers that passed away a decade ago, so the backgrounds inside the house would be filled with satanic symbols, like inverted cross on wall, baphomet's status, sexual satanic rituals pages scattered from a magic book in the map, inverted red pentagram on the floor, etc
Plus adding multiple ending? Like either purging the house from the satanic creatures and demons, or try learning and gaining a satanic powers with a random chance risk of being corrupted the more power the protagonist gain (become a succubus/bad end)