Luna Online is a free-to-play massively multiplayer online role-playing video game developed by EYA Interactive. After a three-year development phase, starting
in 2004, the game was initially launched in South Korea in 2007, but first became successful with its launch in Taiwan in October 2008.
The game's North American version, which was published by gPotato, was first announced on July 21, 2008, and received a closed beta that began on April 17, 2009, while an open beta started on May 14, 2009. An expansion pack, titled Luna Plus, that includes additional game areas and levels, as well as cosmetic items, was released on January 20, 2011.