I'm not the best at these kinds of games (only got to the slimes...) but I still had a bunch of fun! The presentation is pretty good, you've got a nice UI that doesn't beat around the bush and the attacks each have really nice looking effects that don't take up 90% of the screen like most other survivor-games fall prey to. I'm not sure how deep you wanna go with this since I assume you're still hard at work on Yark but with a little tweaking you could have a pretty solid side-hustle with this! That being said, here's some things that need spicing up:
-Please put descriptions on abilities. Sure, the pictures are descriptive enough but those first few playthroughs I was pretty confused on how to spec.
-Make the upgrades feel more impactful. I chose fire 5 times in one run and it never felt any bigger or stronger. It made getting to the slime section really difficult.
-Are there supposed to be keys in the game? The chest wouldn't open without one but I never managed to see one (maybe a skill issue on my part)
-If you walk into Monsieur Void at the start he just snatches you and the game ends. Ruined my first run in seconds.
-Please have mercy on my CPU :(
-Maybe another error on my end but I could only select upgrades/abilities using the mouse despite playing on keyboard. Not an end of world kind of deal just annoying.
-The music is awesome! Not a complaint, just had nowhere else to put this.