High Quality Content by WIKIPEDIA articles! The Exiled Realm of Arborea (officially abbreviated as TERA) is a 3D fantasy themed MMORPG developed by Bluehole Studio. The game was launched and published in South Korea on January 25, 2011 by Hangame, in North America on May 1, 2012 by En Masse Entertainment and in Europe on May 3, 2012 by Frogster Interactive Pictures with open and closed beta testings taking place before the launch dates. Possible localizations for other regions have been mentioned, but have not yet been confirmed besides Japan.