How can you forge ahead through the jeweled walls of the mine shaft? Shift them! Rotate a game tile a quarter turn to move the mine wall and allow your gemstone access. Or rotate tiles to prevent your opponent from moving. There are walls everywhere, but strategic miners can successfully make their way through to the other side. With 27 game board tiles, the set-ups are unlimited for a brand new game every time you play. Plays best with 2 players.