The idea is interesting, atmosphere is great, you did a good job there, i loved the narrator :p
There is some bugs, i clipped through the walls sometimes. This isn't a bug, but the camera field of view is very small, making the mouse sensibility looks high.
Music is cool, 3d models are ok, but could get some textures or more colors. Nice work! :D
You already rated my game, but will leave it here anyway: