Gravity Co., Ltd. develops and publishes online games in South Korea, Japan, the United States, Canada, Taiwan, Hong Kong, Macau, China, and internationally. It offers online games; mobile games and applications; and other games and game-related products and services, including character-based merchandise and animation. The company's massively multiplayer online role playing games include Ragnarok Online, Ragnarok Online II, Requiem, Dragonica, and R.O.S.E. Online. It also provides console games and a game for Internet protocol television; and licenses the merchandizing rights of character-related products based on its online games. In addition, the company markets dolls, stationery, food, and other character-based merchandise, as well as game manuals, monthly magazines, and other publications. Further, it provides Website development and operation services; and sells goods related to mobile phones, such as ornamental accessories and USB data cables. The company was founded in 2000 and is headquartered in Seoul, South Korea. Gravity Co., Ltd. operates as a subsidiary of GungHo Online Entertainment, Inc.