Music and sounds were a bit out of the balance - some sounds (especially one when you finished dodging after an attack) just much louder than everything else. Would love to put music a bit higher (music is good, by the way!) and that sound of dodging to put a lot down. It is just too sharp and loud compared to everything else.
Combat was a really nice concept. I am not sure why would anyone want to use anything but the sword, though. Bow was too fast and because of it - hard to use. Magic was way too slow to use and sword seemed to do more damage overal (maybe different enemies take different damage from weapons, but difference in speed was so huge that it was not so tempting to test around - couple of tries with magic didn't show me anything good and bow was just... too fast to react!)
Collected 12 shards and got to the room - already saw comment that that is where it ends for now.
Monsters not always attacking - by design? I was running atfter one for a long time until I just decided to walk past and ignore everything, unless they will trigger combat themselves.
Had fun reading the notes too!
Pills - do they decrease which mobs spawn or how many of them around? I wasn't sure, because ghosts were always running, then skeletons appeared and after I took pill - skelletons were still running. But concept of mobs spawning based on sanity levels is a nice touch!
Overall, I enjoyed the run. Maybe it would be better to make some indication that you can swap weapons (hints with arrows on book while in selecting mode?) and also put some hint that i NEED to press spacebar to start the battle :) A lot of embarasing staring contests with the mobs were there for me!