Stone is a minor currency. It is obtained through Mining. Stone is used for Mining Upgrades. Each stone may also be sold for 1,000 Gold. Stones are also used to upgrade Guild Buildings. Other sources of Stone are: Participating in Events Entering Codes Retrieved from "https://iourpg.fandom.com/wiki/Stone?oldid=13604" Categories: Currencies Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.