I thought the game design was quite elegant. The mechanics are intuitive and easy to grasp, the objective is clear, and the upgrades provide a satisfying sense of progress. The currency being the corpse of the very thing you need to protect is a great feature. I also really appreciated the display of the cooldown directly on the cursor.
It’s already quite fun as it is, but if you decide to add more upgrades and further balance the game, it has amazing potential! :)