Your game has a really interesting concept! I really like the dungeon crawler / clicker game mashup :)
I really loved the music and found that I was clicking to the beat, which was very fun. The range of enemies was also interesting, and I liked the art a lot!
Only comment is that the scaling on the enemies started out higher at each level instead of increasing with the sword and my hand got a bit tired, since there was no way to automate the clicking. The upgrade noise was also a bit too loud compared to everything else.