Doesn't work when I add to worldbuilder, when I add any building via worldbuilder the game doesn't allow to have it after I exit, might be because of locked modified assets maybe?
the two cities can build a lead mine but not a salt mine. I had to cheat by adding bionic suits and exoskeletons ,etc into my cities via worldbuilder. It really ruins immersion for me when I have to cheat in order to get the units I want.....
BTW, the A.I. can't build it either. None of them have lithium, exoskeletons, mechs, and all the other bunch of resources needed from lithium.