Remove all cards and reveal the three towers. You can remove cards from the game by clicking on cards that are 1 higher or 1 lower in value than the open card at the bottom. Click on the closed stack to get a new open card.
Combine cards (or coins) to a total value of 11 to remove the cards (or coins) and built a Ice Pyramid. Click on 2 or more free cards/coins and reach 11 in value.