Resource Overview History
Copper is one of the 31 rare resources. It appears as a patch of slightly shiny yellow-orange rocks with some green and grey sprinkled in, somewhat resembling the Amber rare resource.

Like all rare resources on land, Copper can be obtained by sending a Merchant from the Market to the resource location. Copper provides the following benefits:

The gather rate of rare resources can be increased in various ways, as described in the main article. Note that Metal Metal is not gathered until a nation has entered the Classical Age Classical Age and linking a Copper resource while still in the Ancient Age Ancient Age might provide no benefits at all.

Copper is especially valuable and sought after on all sea map types, improving the important naval units and making them much more durable in combat. Transport vessels like the Transport Barge are also affected by this resource, making them slightly less vulnerable.