Nexon Group was established in Korea on December 1994 and is currently based in Japan. It also has offices located in Korea, the United States, Europe and Taiwan. Nexon developed and published its first title, Nexus: The Kingdom of the Winds, in 1996, which the company continues to service. Many title releases followed such as Dark Ages: Online Roleplaying, Elemental Saga, QuizQuiz, KartRider, Elancia, and Shattered Galaxy; some of which are maintained by a company spun off of Nexon, Kru Interactive. In 2003, Nexon developed MapleStory in Korea, which later became its one of the most successful titles and has been serviced for more than a decade. The game was localized in many locations such as Japan, China, Taiwan, Thailand, Singapore, North America, Europe, Brazil, and Vietnam. Nexon is also the developer of Dungeon&Fighter, through its wholly owned subsidiary, Neople. Dungeon&Fighter is one of the most popular free-to-play PC online games in China.
Nexon went public on the Tokyo Stock Exchange on December 14, 2011 in an initial public offering, the largest in Japan for 2011 and the second largest by a technological company for 2011 worldwide.
On March 9, 2016, Nexon acquired Big Huge Games, a mobile game developer in Maryland.
Nexon currently has the following subsidiaries: Nexon Korea Corporation, Nexon America Inc., Nexon Europe GmbH, Nexon Taiwan Ltd., Nexon Networks, NEXON M Inc., Nexon Communications, NEOPLE, NDOORS, Lexian, Rushmo, Rushmo America, Neon Studio, NEXON GT, gloops, COMLIER, gloops Vietnam, Nexon Space, THINGSOFT, Boolean Games, Fantage, Big Huge Games, and wellgames.