WP - "Pocket Mine is a new speed-digging game for the iOS and Android platforms, and it combines the mechanics of Dig Dug with the frantic pace of an endless runner game. Chests come in four materials (wooden, iron, gold and diamond) and will earn you anything from cash to rubies to rare cards. Keys are needed in order to open the chests. Cards will give you boosts at the beginning of each round, three boosts per round. Energy is needed in order to play a round."