Well Done, Your game has everything to be good! I like it, but i can fix some things to be better
1) The monster is spawning with no reason on player's feet.
2) the monter algorithim needs to be polished, maybe making him more slow and hunting us by sound or something.
3) We don't have indicators about where to do the objectives, we have a list of "things to fix" but in game, the elements are all green wich causes confision
4) i won the game just by fixing 3 things
I don't know if you want to fix it, but i felt your game has a crazy good atmosphere, you should ship it when finished :)