Telenet Japan Co., Ltd. (株式会社日本テレネット, Kabushiki-gaisha Nihon Terenetto) was a Japanese video game and software developer founded in October 1983 by Kazuyuki Fukushima.^{[citation needed]} The company had several video game divisions including: Wolf Team, Laser Soft, Renovation Game (Japanese publishing division), Renovation Products (North America publishing division), Riot, Commseed, and Telenet Jr.^[1] Telenet Japan's North American subsidiary, Renovation Products, was acquired by Sega of America in 1993.^[2] With debt of ¥1 billion, the company ceased operating in late September 2007 and closed its doors on October 25.^[3][4] Sunsoft acquired Telenet's entire software library in December 2009, citing plans to remake or re-release (via Virtual Console) the old titles.^[5] The Japanese company Edia acquired Telenet's catalogue from City Connection in January 2020.^[6]

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The Riot division came into existence in 1991 when Telenet Japan was expanding in the country.^{[citation needed]}

However, because Telenet was starting to lose sales in 1993, the company went through extensive restructuring which resulted in the closing of a few subsidiaries. Some staff employed at Laser Soft and Riot were transferred to another subsidiary, Wolfteam. The same year, several key developers of the PC Engine games Tenshi no Uta I & II left Riot to found Media.Vision and work on a new RPG franchise, Wild Arms.^{[citation needed]}

Riot was also known for employing graphic artist and later game director Eiji Kikuchi, as well as music composer Michiko Naruke.^{[citation needed]}