Very satisfying digging game, a little simple but gets you thinking about how to efficiently dig your tunnels to move around and how to best efficiently hoard the gold around. Very addictive *numbers go up* kind of game. I don't really have any complaints outside of the camera being a little finicky when you get back on the surface from the edges of the map. Game was so good I struggled to put it down so that's about as high a praise I can give it.