I'm sorry, but this is simply not engaging enough. The slow walking speed, complete lack of action, tension, danger and clear goals will make most people (including me) quit before finishing. I'm sure it's possible to make an effective horror game in this style, but you'll have to create tension somehow. I'd add a flashlight and maybe some other movement abilities like dashing that would make the levels more interesting - and make it more scary when you suddenly can't use those abilities anymore. You could always do the old trick of "look away- and when you look back something has changed". You'll have to hook your players in with a mystery or a scare early on for them to keep playing.