First and foremost, this mod does its job good to an extent. It sets the atmosphere up very well. The fire going out in the beginning is a nice way to start it off and the whole "stuck with nothing but a bow and wit" idea is a good way to execute the gameplay itself.
But unfortunately that's as far as positives go.
You see, the actual area is so dark that a particular enemy is near impossible to actually see unless you have focus into what exactly you're looking for. Even then, it's a tiny enemy. The one I am referring to is the Creeper.
After that obstacle, you have a giant skull that teleports everywhere and a face that will scream nonstop. Unless you're on edge whilst playing this, those will just turn out to be annoying at a point.
Then there's the final boss. It flings random shock images at you, ranging from a picture of a clown, to random gore, to the classic picture of the girl from The Exorcist we've all seen plenty of times. Lazy, if anything, considering they're just images with no connection to the actual game whatsoever.
TL;DR: Great concept and beginning, poorer execution. Sure is great reaction material for the unaware, though.