Hello everyone. Any idea of which lvls of iron storage are requiered to reach the upgrade cost?
I have two advanced iron storage at lvl 5 , the others at lvl 20(lvl 23 only allows to have two advanced)
Is it more efficient to build a third one and lvl it to 5? Should be enough? I think that upgrading times are higher to upgrade my lvl 5 storages than a third one from 1
Thanks in advance!