The game is divided into six rounds. On their turn each player must:

1. Mine a crystal: The player draws a crystal from the bag and places it on his cart. If the mined crystal is an unstable (black) crystal, the player receives a reroll marker. There is no limit to the number of reroll markers a player can have.

2. Roll the dice: Each player has up to three dice rolls per turn. In the first, all 5 dice must be rolled. In the second and third they can reroll as many dice as they want. If they have a reroll marker, the player can discard it to perform an extra reroll.

3. Perform actions: According to the result of the dice, the player will be able to perform one or more actions. Aside from the pickaxe symbol there must be at least a pair of dice for the action to be effective. More dice faces of the same kind can make the action more effective. Actions allow the player to mine more crystals, steal crystals, store crystals in the chest, or transfer unstable crystals to opponents.

At the end of the game, everyone receives points according to the value of the crystals they have, being entitled to bonus points for collections of crystals of the same colour. Each unstable crystal will penalize its owner 3 points, and the player with the fewest crystals in the chest loses 5 points. The player with the most points after 6 rounds wins.