Forge points are mainly used to research technologies and upgrade Great Buildings.
Players receive supplies by placing orders in production buildings. Unlike residential buildings players need to set those orders manually.
Goods are produced in goods buildings. They are unlocked through advancing in the technology tree. Goods buildings are usually very costly and require a large amount of population to be built. Enthusiastic population does not enhance the production from the goods buildings.
Players in SAM and SAAB can put goods buildings on the colonies. Those you can not see. Also special event buildings can give a lot of goods. A recent event building like the Airship you place because of the 9 fp, but it also gives 20 goods.
To help construct a Great Building, simply visit a city of one of your friends, neighbors or guild-mates in which a Great Building construction is present, and click on the Great Building. You may now donate Forge Points, and also view which reward you will receive (if any) for your current donations.
Forge Points Buildings Arctic Orangery. Winter Wonderland Pyramid. Abandoned Asylum. Innovation Tower.
To buy Forge Points, you just click/tap on the plus sign next to the FP bar. A window will show giving you the option to buy FP with coins or Diamonds. To invite players that do not currently play, I believe you have to provide their email for Inno to send them an invitation.
Goods Spent Whenever a good is spent, its point value will be added to the ranking (research tree, Great Buildings, sector negotiation, donations to the Guild Treasury and so on).