A simple mod allowing trading one metal for the next.
Unlocked with the Launch Pad.
Each terminal takes 1000 resource and permits trading 10 of that resource for 5 of the next.
Tier 1: Copper -> Lead Tier 2: Lead -> Titanium Tier 3: Titanium -> Thorium
Simply download this repository as a zip, then import it through the Mods dialog in Mindustry. Or, unzip this repo inside Mindustry's mods/ folder.