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Resource Extraction Upgrades
 
 

Develop mining

In order to intensify ore extraction, new tools and extraction methods were introduced in XVII-XVIII centuries. Miners used tubs and various lifting cranes for load deliveries. When it was impossible to extract minerals from an open pit, they built mines. Pumps were used to pump out water. These innovations significantly increased productivity of miners' labor.

Location: Academy
Action: Developing mining allows increasing stone extraction efficiency by 200%. After accomplishing this upgrade, Peasants will procure stone three times as fast, this increasing stone extraction.