trade

Have printer. tired of wasting plastic! I am looking for the best orientation for the Torso, I have tried downside up and on its back but both destroy the detail on the back.

On discord, i got this thought about markets, where player trade goods with other player. WITH WHAT? MONEY? Though i remember something about minerals as currencies. So how many of these minerals can be stored? Like 500 each? Where others minerals need to be refined for better quality. 1...