What's the use of famine copper strings?

Go to the panda stand to buy what you need. Inquiring about official website information in the famine game shows that players can get a string of copper coins through the wishing tree. After getting a certain string of copper coins, players can go to the panda stall in Qingzhuzhou to buy what they need. Famine is an action-adventure survival game developed by KleiEntertainment, which was released on PC on April 23rd, 20 13.