Too expensive in energy
When I started playing the game, I really enjoyed it, but as I progressed and played more, I grew frustrated. It has great elements of play, but the energy consumption is way too high for a casual player like me. In fact, I got bored and finally deleted the game today. Requiring 42 energy to clear a rock, and then 30 energy to clear other obstacles before you can actually get to elements you need to finish a task is extremely expensive. For tasks you often need to find anywhere from 4 -16 things to build often frivolous things that have nothing to do with a quest or event. It is clear that the developer is pushing for in-app purchases and I for one will never pay to play a game. It is sad really because I enjoyed the game but in the end the price of energy consumption became too high.