You can trade with your friends in trade nations.This is one of the best methods for active players
Trading is very simple, just go to a friend interface and tap a shop to initiate a trade. once a trade has been accapted the person trading with you pays for the meterials visa versa, and you and him/her both pay the time it requires. both get full profit afterwards. this is best for the night profit way of getting cash so both players get something instead of 1 person.You may also trade supplies if you have the builds (ike the lumber mill),but the physics may be different.
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