Gold is one of the three main resources that are used in the game, produced by Residential Areas. With evenly leveled production buildings gold is produced at a much higher rate than your other resources. This is because gold is among the most valuable resources as it is the only free resource you use can use to trade. Gold is used in all construction; from buildings to ships, blueprint research and to purchase items from the Trading Center.
Gold can also be obtained by successfully attacking other players and destroying their Space Station, and in treasure boxes from instance raids.
See Also: Currency