Short for The Exiled Realm of Arborea, TERA is a South Korean MMORPG by Bluehole Studio. It was released in South Korea on January 25, 2011.
Unlike most MMORPGs it uses a real-time, non-auto-target battle system.
Had a mobile game in China called Elin Expedition (艾琳传奇). A mobile spin off called Tera M (테라M) which was followed by a similar mobile entry Tera Origin. Also a mobile port of the original game as Tera Classic (테라 클래식).
Infamous for the Elin, an all-female race of prepubescent-looking nature spirits in rather revealing clothes (uncensored version only).