Age of Conan is Funcom's MMORPG set in Robert E. Howard's world of Conan the Barbarian. Launched in May 2008 on subscription, it became Age of Conan: Unchained in June 2011, free with optional premium. It is set in the Hyborian Age a year after The Hour of the Dragon, and you start as a slave with no memory on a ship off the Barachan Isles.
There are twelve classes, from Barbarian to Demonologist. Combat is active: you swing in one of three directions and chain the hits into combos rather than relying on auto-attack. Guilds build their own walled cities and fight over battlekeeps in the Border Kingdoms.
It suits fans of grim low fantasy who don't mind a mature rating. Caveats: it is nearly twenty years old, which shows, and there is no Russian.
