Played your game, very nice atmosphere, and very challenging enemies. Took me a while to figure out how to kill those ghosts without losing all the health from the first couple of enemies, seeing that I don't play Dark Souls-type games, more of a shooter guy.
Looks like from the comments that you're working on the defense system. The game would really benefit from that. Also, there was a situation where I was swarmed by enemies but couldn't move, don't know if it's by design or not, but you should look into it. And movement while in combat in general.
With those graphics, the game works flawlessly with all the graphic settings turned to max - i5 4590/RX480. Looking forward for more of GKV.