The game is extremely addictive at the beginning and I was instantly hooked. However once I was well past the tutorial I would run out of energy insanely fast. I want to continue playing but if I want to have more that 5 energy I have to pay stupid amounts of money. I know the creators wont acknowledge my complaint because they are too busy worried about how the game can make them more money, not how to make the game better. This game has the same feel for me as clash of clans, it becomes incredibly boring and useless to play unless you pay.