I like the athmosphere of the game, its very fitting for the theme. Feels quite frightening to roam through the after-world.
I was a bit confused at start, until I found out I am supposed to walk through walls. Well makes sense I guess, since you are a spirit in the afterlife, haha. The music is nice too and underlines the moot well. The step-size is a bit too small, I have to press w constantly like its one one of these hit-the-key games. :P I had no problems with the monsters, they are quit dumb and you can walk around them often. The game felt a bit like Doom at times, finding keycards keys to progress further in the 3D-world. :D
Overall a pretty nice game. :)