The game's economy revolves around kamas, the currency of the World of Twelve.
Merchants and NPCs
Merchant NPCs in each city buy and sell basic items: potions, scrolls, common resources.
The trade channel / Market
To sell items between players, the most common way is using the trade channel in chat or each city's market spaces, where you list your items for other players to buy.
Ogrines and Stars: the site's currency
Besides in-game kamas, on the Donefus website we have two of our own currencies: Ogrines (which you can buy) and Stars (which you earn by voting for the server). With either one you can buy VIP, character transfers and other perks directly from the site.