This is a great game. Plot and gameplay are a ton of fun. My only complaint us that energy costs WAY too much. I have NEVER experienced a game that is more expensive to play. As one advances in the game, blocks require more energy to dig...at this point, I can play for about 2 minutes before running out of energy. Once a grid has started, it's no fun to clear 1 row of blocks per hour. I feel the cost really takes too much away from a super fun and relaxing game.