I was addicted to Vampire Survivors for a while so I enjoyed playing this :D I think you got the main part of the mechanic very well, it felt good to run around and defeat the other enemies, and anytime I stood still the enemies damaged quite a bit, so it felt balanced
my main feedback would be that some additional sound effects would have been very cool, I felt like a lot was happening but I only heard a squishy/liquid blood sound. This would have made it more immersive, but overall this was a complete game and it was fun to play