The gameplay is good. I liked the sense of progression with the upgrades. It was a bit tedious to click the shovel icon for every hole you wanted to dig, would've preferred to place as many as I want/can after one click. The game gets a bit tiresome after you get max out all of the upgrades, because then it's very easy and lasts quite long. Maybe have fewer waves, or make the waves stronger and give the player ability to buy some one-shot items, like catapult ammo or some magic thing you can do with the Excalidirt. The core gameplay is pretty fun though!