Hey, this game is very nice. Nice interpretation of the theme and very simple and easy to learn. I liked that there were a small number of things you can buy so I didn't get overwhelmed, and also that the whole game is quite short. Very nice as a whole.
One thing that annoyed me a bit is that sometimes I spent a day accidentally digging when I didn't want to. So maybe you could be able to sheath your shovel to not dig by accident or highlight the diggable things a bit more. Some of the blocks were quite close to the background in color so I accidentally hit them.
Overall this game is very well done, nice job!