The money system in Order and Chaos is arranged much like World of Warcraft. You have three different coins: Copper, Silver, and Gold. 100 Copper equates to 1 Silver, and 100 Silver equates to 1 Gold.
Also see: Currency
You can earn money a number of different ways in the game. You can earn generous amounts of money from questing, and many enemies usually drop money when killed. You can also find a profession, and sell your creations. If you are in a bind, you can kill enemies, pick up everything they drop (even useless items), and sell them to stores. This makes for an easy way of making money, and there are no special requirements.