RS3 gold is a form of in-game currency used in the MMORPG RuneScape 3, while OSRS gold is the same type of currency used in the older game RuneScape Classic. The two currencies are not interchangeable, as the values and economies of the two games are significantly different. However, some players do trade their RS3 gold for OSRS gold on third-party websites, or use services that convert one type of gold to the other.