$FDM is the main currency on the Moac, and the expanded FDM universe. It's used for barter, trade, to invest in coconut workers, who mine STONE, lumber WOOD, and husk COIR, the underlying materials of the Moac. $FDM can be spent to buy resources in the market, or in later stages of the game spent on research, crafting, building, or wagered in the Arena. As the game develops we'll be creating more function for $FDM.