The atmosphere looks wonderful, but I did get warnings the entire time that I had run out of video memory and a warning that I would likely have horrible performance. It looked great, and it would be nice to see the final once the mechanics are fully functional in the game as right now the only thing that appears to be happening is you can find the entity and then it kills you.
Great horror atmosphere though; I definitely felt claustrophobic and like something was going to get me at any moment.