The Empire uses coins of Copper, Silver, Gold and Platinum. The values are simple.
- 10 copper = 1 silver
- 10 silver = 1 gold
- 10 gold = 1 platinum
The Orc tribe is a fairly primitive culture, using raw materials like minerals and cloth and occasionally shiny coin, to trade for goods with those merchants brave enough to interact with them.
Empire of Crowns is a sim on the cusp of the industrial revolution. Clockworks and very simple machinery are becoming more and more commonplace in the EoC universe, as are magical machines such as warforged.