Nitroplus

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Nitroplus

Native name	株式会社ニトロプラス[1]
Romanized name	Kabushiki Gaisha Nitoropurasu
Company type	Kabushiki gaisha
Industry	Computer games, Mobile Games
Founded	June 2000
Headquarters	Taitō, Tokyo , Japan
Key people	Takaki "Digitarou" Kosaka (President) Gen Urobuchi (Director)
Products	Visual novels
Total equity	¥10 million (US$121,418)(2012)[1]
Number of employees	70 people (As of July 2023)[1]
Website	nitroplus.co.jp

Nitroplus Co., Ltd., currently styled as NITRO PLUS, formerly stylized as nitro+, and formerly known as "OKStyle", is a Japanese visual novel video game developer that has developed a number of visual novels, including eroge. They have also collaborated with developer Type-Moon to create the light novel series Fate/Zero. Their works usually have dark themes such as reanimation of the dead, rape, and murder. They also have a branch of the company called Nitro+chiral, which focuses on boys' love visual novels. Writers aligned with the company, such as Gen Urobuchi, have also contributed to various manga, anime, novels, and television works.

Super Sonico is the mascot of Nitroplus's annual music festival event "Nitro Super Sonic" since 2006. Nitroplus has held their music festival every year since 2000. Ouka Satsurikuin was Nitroplus's original mascot before Super Sonico.