Digging was actually super satisfying, nice work :D

Didn't work very well on my browser as the edges of the interface were clipped. Thankfully I could still see the tools and likely most of the mining field so it was functional. The game is simple and the functionality is polished. I did not find it very engaging or challenging as my tactic was just to use only the most precise tool and punch evenly spaced holes through the walls in search of the big gems. That strategy took very long though and by day 5 I had 10000 gold which suggests this would go on for long. I gave up after day 7 but there may be more interesting things further ahead in the levels, apologies for not going very far. Maybe if there was a timer or only one instead of 3 mining sessions per day it would require a more balanced strategy between speed and accuracy and would go faster and be more challenging for me. The point where the tools hit was a bit confusing, the chisel looked like it was pointing to the lower left edge (like a pointer) but it hits from the middle of the sprite - maybe you could move the tool selection to just highlight the tool and then have a more accurate pointer or make an animation for each tool that swinga it where a more generic pointer clicks.

Interesting simple game. Not sure when the pickaxe could be useful, the only time I used it, i did not find any treasure and the counter went down quite quickly. However, I saw the difference between the two other tools.

Not sure about the cumulative gains day after day, why not reset progress so we really need to do the quota the current day instead?

Nice little game, the different types of treasure that you could find was a nice mixture! I didn't swap tools much at the start of the game and mostly just smashed tiles with the hammer but had to change tools more often later on to make sure I was meeting quota.