Money trap. EVERYTHING must be paid for. Clear land to get chests, chests take money to open. It would be a decent game if it wasn't so excessively thirsty for money. I regret purchasing the daily pack- it doesn't give near enough to even put a dent in all the chests I've accumulated. Work for chests you can't open. So fun. So basically, you play for nothing unless you are willing to shell out MAJOR money for a sense of 'collection accomplishment'. Waste of space on my phone.