Ey, this was a nice game.
I thought the drills would end up being broken, but it turns out it was the pickaxe all along.
I did find a small issue. The progress to the next item is on the highest "layer" (I don't know godot terminology) i.e all other sprites are behind it. The issue is that, when you get the drone, it's behind the % number.
It doesn't take away from the experience, I had to look for it to even notice it, but it's there.