BATTLE FARM CURRENCY SYSTEM
All vegetables, fruit, fish, animal products, farm goods, factory output, workshop goods, and other production are sold only for Silver. Player markets, supplies, shops, and logistics also settle in Silver. Quests, referral rewards, and lottery currency prizes do not create USD; they award or convert to Silver.
The only way to create withdrawable USD is the state purchase of physical pearls. Pearls must be mined on a captured island or obtained through the Pearl Auction for Silver. Mined pearls must be loaded into a ship hold and delivered through the sea port. Delivered pearls can then be sold to the state on the Pearl Exchange page. Payment depends on the rate, fee, limits, and available state fund.
ECONOMIC LOOP
Production and trade → Silver → development or Pearl Auction purchase → pearl delivery to port → state buyback → withdrawable USD balance.
Buying pearls from another player does not itself create USD. USD appears only when the state actually purchases and consumes delivered pearls.