Fun game. Terrible customer service. There are user interface TRAPS. For instance the module reset button is extremely close to the top right module purchase. If you purchase top right module & brush against the 100 reset button (it's a trap and value questionable); there is no confirm reset screen unlike the module purchase. I complained to customer service: 'Our system recognizes that you have used 100 gems to reset the module. We're sorry we weren't able to undo a valid transaction. 'F' me.