OGPlanet was a publisher of free-to-play, massively multiplayer online (MMO), downloadable PC games, based in Torrance, California, with offices in Vancouver, Berlin, London and Seoul.

OGPlanet was established in 2005 with the goal of bringing MMO games from around the world to North American and global audiences.

In 2007, the company launched the popular MMO fighting game Rumble Fighter, as well as Season 3 of Albatross18 and BB Tanks.

Shortly after, the online fighting game, Lost Saga launched with its closed beta in mid-October and final release in November.

On October 19, 2011, SD Gundam Capsule Fighter Online joined OGPlanet's game roster, through an agreement with Bandai Korea.