Such a fun game!! This game is genuinely really addicting!! It feels like one of those games you'd play on CoolMathsGames and it's so much fun! I really like how you can upgrade certain stats as well as get special abilities that help you in different ways with drilling! I reached day 22 and I maxed out all of my upgrades and I was wishing there was even more to the game so I could play it more! It's way too much fun!