Aion: The Tower of Eternity - known more simply as Aion - is a subscription-based massively-multiplayer-online role-playing game (MMORPG) published and developed by NCSoft. It was released in South Korea in 2008, and in North America, Japan, Australia, and Europe in 2009. Aion is also in development in Russia with a mixed-model payment system.
The game is know best for its PvPvE system (player versus player versus environment), a three-faction competitive system in which players must not only battle AI-controlled enemies, but each other as well. With two factions, a flight system, and in-depth gameplay including crafting, pets, and more, Aion has won multiple awards from the online gaming community.