I'm thinking: have all of the ores be alloys and you have to put them through a machine to get the basic metals.
Want Iron? You need to mine some steel ore then unsmelt it to get iron and carbon.
I'm thinking: have all of the ores be alloys and you have to put them through a machine to get the basic metals.
Want Iron? You need to mine some steel ore then unsmelt it to get iron and carbon.