A nice unity game.

Good game

I'm sorry for the lower rating, but this needs more work.
While I think this game has potential and set the atmosphere quite right, there was no clever tactic to avoid/escape the creatures (also, isn't there some text written next to their heads?), you just have to hope they won't be there when you enter a room. This is much harder in the first room, because you can't leave and you need to get the key on the other side, but there's a monster blocking your way. I never managed getting past it without losing a heart.
Then there's that distorted perspective when you go up/down; but that could work if you – let's say – meant to show that your mind is playing with you (since you see some scary faces from time to time). It's quite interesting until you get used to the effect.
Perhaps some of the items don't blend quite well in the surroundings (e.g. the first key) and the music might get repetitive after a while. Also, I had to play the game in fullscreen mode, otherwise I wasn't able to move after starting the game.

Like I said, I believe this could work very well, but it needs some tweaks.