Royal Exchanges are what you are looking for. Starting at 20 coins, you can buy a royal exchange (i.e. Fairy Exchange, Elven Exchange, etc) which will increase your overall production by 10%. The cost of each Royal Exchange increases progressively with each purchase.
Royal Exchanges are what you are looking for. Starting at 20 coins, you can buy a royal exchange (i.e. Fairy Exchange, Elven Exchange, etc) which will increase your overall production by 10%. The cost of each Royal Exchange increases progressively with each purchase.