It's really good. I love it.
Took me a few tries to finish this game. It wasn't a huge challenge but you're putting both our skill and mind to a good test.
The graphics weren't "woah" but I'm sure it wasn't meant to look glamorous anyway. The fact that you've managed to create a creepy atmosphere in a simple vision amazed me. Great job.
I was planning to suggest using music but... then I died. I died again. And again. It got intense even more intense by the count of my deaths. Not a bad idea, especially if you're doing it with an eerie music like this.
All aside, it was too short. That's half a star gone. Overall, four and a half. Keep up the good work!