I came to the app listing to look for similar games. I love the game, but all of the other reviews are correct. The energy system is beyond ridiculous. If energy usage/replenishment were even close to reasonable, this would be a five-star game. The developer will comment on this review how I can get energy; one-time options (connect to Facebook), usually unavailable (ads), or are purely luck based (contests on Facebook). Just make it playable and stop making excuses!