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Trade is one of the ways to generate income. Trade occurs by creating trade routes between two planets belonging to different civilizations. Both civilizations receive a financial benefit. If either party has the Entrepreneurs ability, both planets also receive +1 Unrecognized icon nameGC3 Approval Stat Icon.png Approval.

The trade income from each individual trade route is shown on the Trade tab in the Govern Civilization screen.

Creating a trade route[edit | edit source]

Creating a trade route requires sending a Unrecognized icon nameFreighter Icon.png Freighter to a planet controlled by another civilization. Establishing a trade route consumes a trade license, of which only a fixed number are available, represented by Unrecognized icon nameGC3 Trade Revenue Stat Icon.png Trade Licenses Max.

Value of trade routes[edit | edit source]

The amount of income generated by a trade route is computed separately for each planet and depends on the type of trade route (see below), according to the following formula:

(A + B + C)*(1 + D)


  • A is sum of the Unrecognized icon nameGC3 Raw Production Icon.png Raw Production of the two planets multiplied by the income percentage (2.5% for basic trade routes),
  • B is based on the distance between the planets; it is product (bounded between 1 and 250) of the number of tiles and the per tile modifier (0.1 for basic trade routes),
  • C is based on the age of the trade route and accumulates at a rate of 0.1 per turn (bounded between 1 and 250)
  • D is the Unrecognized icon nameGC3 Generic Stat Icon.png Trade Route Value bonus for the planet, plus 0.15 if the planet belongs to the initiating civilization.

Types of trade route[edit | edit source]

A civilization can have one of three types of trade route: basic, luxury and slave. All civilizations create basic trade routes initially and switch based on ideological choices. Each type provides unique bonuses and generates income slightly differently, according to the following parameters.

Type Income percentage Per tile modifier Requires Bonus
Basic 0.025 0.1
Luxury 0.1 0.05 Luxury +5% Unrecognized icon nameGC3 Influence Stat Icon.png Influence Growth, +5% Unrecognized icon nameGC3 Approval Stat Icon.png Morale
Slave 0.05 0.01 Slavemasters +2% Unrecognized icon nameGC3 Raw Production Icon.png Raw Production