Really like this one, the atmosphere, the sounds and the visual effects are amazing.
I do have to say the old-school adventure controls turn me off a bit though, especially at the start my head kind of spin a bit trying to remember the map, even though it's tiny. I wonder why you didn't do a normal FPS kind of control.
Also the first bit when the power goes down gave me a bit of jump scare with the loud noise so maybe you could adjust that a little bit :)