Pyramid Solitaire Cube is a fast and fun card game that is perfect for those looking for a quick entertainment during their free time. Developed by Tether Studios LLC, this game is available for iPhone users and can be downloaded for free.

The game follows the classic pyramid solitaire gameplay where players must match cards that add up to 13 to clear the pyramid and win. However, Pyramid Solitaire Cube has a unique twist with its special "free" slot that allows players to solve the trickiest decks. The game features super smooth animations and fluid touch controls, providing players with the best experience possible.

What sets this game apart is its multiplayer feature that allows players to compete head-to-head with other players or join large multiplayer tournaments. In head-to-head games, both players solve the same deck, and the player who finishes with the most points wins. The game also features Skillz, a competition platform that offers leaderboards, trophies, physical or virtual prizes, and an amazing loyalty program that rewards players for playing. However, prize tournaments are not available in some states.

Overall, Pyramid Solitaire Cube is a fun and addictive game that offers a unique twist to the classic pyramid solitaire game. It's perfect for those looking for a quick game to play during their free time.