Welcome. I'm the resident banhammer and general antagonist. As for currency, we've kept the trackable stuff as plain old GP. As for in-thread, I've written my own personal touch on currencies. Each nation using something different or exotic. Raiaeran coin is imbued gold that never wears worth more than trade gold. Fallien trades in rare glass. Deathain would be more of a barter system of oddities or commodities.

But, that's my own personal headcanon. Many people stick to flattened yellow metal.

Feel free to add your own personal touch. If it catches enough sway, we can always adopt it to official canon.