I liked the concept, and it would have been a really cool horror game...
...If it wewn't a dark maze, that is: mazes aren't usually fun game, espacially where your vision is strongly limited, both by the fact that the game is in first person and it's.... well, dark!!!
I'd have been al ot helpfull if the string won't have turned back after you find a dead end, ot at least i'd have leaved some sort of trace!!
To me, the monster wasn't that scary, especially because (at least in the first part of the game, i didn't managed to go to the second phase) i can't hurt you in any way
I liked the cockroaches, tho!!! :3