Maximum Mine

The Maximum Mine is a new "premium" structure available to all users if they have ever purchased any currency pack in support of the game. Currently, it is only available on Plant Island. The Maximum Mine costs 40 diamonds and produces one diamond every 12 hours. Only one mine is permitted on each island, meaning you cannot have a Mine or a Mini-Mine on an island along with a Maximum Mine, and you must remove them in order to purchase and place a Maximum Mine. If you have a Mini-Mine, the Maximum Mine represents an upgrade because it produces each diamond in half the time. However, if you are a user with a regular Mine (now discontinued), the Maximum Mine represents a downgrade. (A regular Mine produces 2 diamonds every 12 hours.)