Based on the events and characters of Robert E. Howard's Conan the Cimmerian stories, Age of Conan: Hyborian Adventures is a fantasy themed massively-multiplayer online role-playing game (MMORPG) that immerses players in a dark, expansive universe filled with ground-breaking brutal combat, dangerously intoxicating magical abilities, and the social and cooperative game features that MMORPG players crave.

Set in the later years of Conan’s life, after he has famously become king by his own hand, the game centers around the fragile state of Conan’s rule in Aquilonia. Surrounded by enemies and hostile nations, Conan’s rule hangs by a thread and in the end, it’s up to players, either singly or backed by their guilds to turn the tide for or against the embattled king.

Although Age of Conan contains a wide range of peoples, its playable cultures are currently limited to Aquilonians, Cimmerians, and Stygians. Within each of these players can choose from a selection of archetypal character classes, although available classes and subsequent subclasses are not necessarily the same within each culture. For example, archetypal classes for Aquilonians and Cimmerians are Rogue, Priest and Soldier, while Stygians are represented by Rogue, Priest and Mage. Further differences exist within subclasses for each.

Unlike most MMORPGs, Age of Conan: Hyborian Adventures includes a significant singleplayer experience as well as deep overarching multiplayer gameplay. This is an atypical MMORPG feature, but one that has a purpose. Players enter the game as a lowly galley slave with no memory of his/her past, and over the first five to 20 levels of singleplayer action build the skills necessary to survive in the game's multiplayer levels. During this time you will traverse a variety of rich environments including jungles, deserts, mountains, valleys, dungeons and cities packed with NPCs, beasts and monsters, before eventually leveling up and moving back to your chosen culture’s homeland. Because the only character-related choices that players have to make at the game’s opening are their looks, clothing and culture, this singleplayer mode is important in deciding what class and subclass to pursue and thus the level of impact your character will have in greater multiplayer portions of the game.

In-game levels 20 and above are strictly multiplayer. 20-40 introduce players to guilds. 40-60 deal with large scale combat. 60-80 have the player interacting with King Conan and levels 80 and up represent end-game play. Here gameplay changes as social aspects of MMORPG gameplay take over on a large scale.