In addition to or instead of using the basic wealth system, which assumes each character has a worth or real amount of gold pieces, it's also possible to use other forms of currency. This could be anything from regional coins, gemstones, works of art, or even more basic commodities like livestock or food. Simply replace or supplement the wealth value with other values to represent the other forms of currency. Here are some examples:
Artwork
Blessings
Boons
Capital
Cattle
Cheese (seriously)
Credits
Land
Lifedebt
Gems
Scrip
Souls