This was amazing! Love the overall aesthetic, the sword design, monsters and some of the more secret alcoves were fun to find. I love dungeon crawlers and this definitely reminded me of my time playing shadow tower and stuff but with very satisfying combat ... which I'm not very good at.
I think my only real problem was with the final boss, I love it's design and the general idea for the game-loop but I found it so hard to hit especially in it's final phase I was spending ages just trying to hit it. Maybe it's something to do with difficulties judging distance for me, otherwise it was a really nice challenge!