Reputation and Trade

Reputation
Your reputation has a general score and a specific score for each civilization you have formally introduces yourself to.

You can only trade with active civilizations. A civilization is considered a political body whose power and/or influence spans multiple regions. You can find a list of civilizations here.

A formal introduction means meeting with a representative of that government and agreeing to establish a relationship. Your introduction will determine your reputation with them; it starts from an assumption of matching your general reputation and gets bonuses or penalties depending on how the introduction goes. If your general reputation goes up or down, so do your specific reputations by the same amount.

Civilizations you have a relationship with will occasionally give you requests. If you meet these requests your reputation with them will go up. However, some of these will penalize your reputation with other civilizations.

Trade
You may trade with any civilization with whom you have a reputation score. The base cost is 50gp per point of basic resources, 100gp per point of advanced resources. One exception: you cannot buy population.

Most civilizations you meet will be able to sell or buy anything a small settlement might need, assuming they have something to offer. In some cases the DM may determine a special situation exists that limits a civilization's ability to sell or buy, or affects what price they are willing to pay. A civilization that is losing a war, for example, might be unwilling to sell Security, but might be willing to pay more than normal to buy it.