Resource Overview History
Rubber is one of the 31 rare resources. It only becomes visible once a nation has entered the Industrial Age Industrial Age; until then it appears as a rocky patch, as with Oil Oil. It appears as a small group of rubber trees with some tire stacks and latex barrels around it.

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

The gather rate of rare resources can be increased in various ways, as described in the main article; Oil Oil production from rare resources is actually affected by Refineries.