To set up the game, players create a pillar of discs, with each disc having four colored plastic “gem” pieces slid into notches on its side. On a player’s turn, the player takes two swings at the disc tower with a plastic pickaxe. If any gems or discs fall from the tower, the player must keep them. Red gems are worth 3 points, pink gems 2, and transparent gems 1, while the center disc is worth -10 points.
When no gems remain in the tower, the game ends and the player with the most points wins!