are we only allowed to buy 3 endless copper mines with gems?
are we only allowed to buy 3 endless copper mines with gems?
Yes.
There is really no need to buy more than three mines as once they are upgraded (note upgrading these is quite expensive but worthwhile), and if you buff them regularly then you will have more than an ample supply of copper ore. There are ways to increase the supply as well. Have one of your geologists upgraded to find a copper ore deposit location that can be mined faster. This will also vastly increase your copper output. Here is a link to learn more. http://thesettlersonline.wikia.com/w...ss_Copper_Mine
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