Aion is an MMORPG from Korea's NCSoft, built on CryEngine. It launched in Korea on 25 November 2008 and in North America and Europe in September 2009. The Elyos hold the bright lower half of the world, the Asmodians the dark upper half, with the Abyss between.
The central idea is PvPvE: in the Abyss players fight the opposing faction and NPC forces at the same time, and legions capture fortresses for taxes and vendor discounts. Six starting classes branch into twelve at level 10. Flight is limited to special zones and starts at just one minute, while gliding works almost everywhere. There are seven crafts.
Aion suits fans of faction war and sieges. It has been free in the West since 2012. The Russian 4game servers closed on 21 January 2026 and players were pointed to Aion Classic.
