In the OS world you need gold to win the challenges

Fight against monsters or even other players, go on adventures or increase experience in any of the available skills. Buying OS Gold saves you time in farming, has access to the best items and skills and even gets much stronger.

OS Gold takes place in the fictional universe of Gielinor

Players can move around on foot, teleportation spells, balloons, ships and others. Each region offers different types of monsters, resources and adventures (quests), which challenge the player. Unlike other MMO's, there is no story to follow, although there is a whole story about the time before which the player is located.