This was excellent, awesome job by the devs! I had a blast playing it; it's spooky, short but very well done. The only real complaint is the lack of checkpoints but really, it's only like 5-6 minutes to get back to where I died, so it wasn't a huge deal.
Keep it up, this team knows what it's doing. I would love a longer version of this game, and a lot more added to it. Solid 8.5-9/10 experience!