- See also: Chrono Wiki's article
The Chrono (クロノ?) series is a video game franchise developed and published by Square Enix (formerly Square before the merger). The Chrono series started in 1995 with the time travel console role-playing game Chrono Trigger, originally released on the Super Nintendo Entertainment System. Chrono Trigger's success led to two sequels, Radical Dreamers and Chrono Cross. A promotional anime called Dimensional Adventure Numa Monjar was also made for Chrono Trigger. As of March 31, 2003, Chrono Trigger was, with 2.65 million units, Square Enix's 12th best-selling game (based on copies shipped); Chrono Cross was, with 1.5 million units, the 24th. The games have been subject to extremely positive reviews.
Chrono Trigger is a console role-playing game developed and published by Square Enix. Chrono Trigger was originally released on the Super Nintendo Entertainment System on March 11, 1995 in Japan and on August 22, 1995 in North America. Chrono Trigger was ported to the PlayStation in 1999 as a standalone title in Japan and in 2001 as part of the Final Fantasy Chronicles compilation in North America. A third version was released for the Nintendo DS handheld platform on November 20, 2008 in Japan and on November 25, 2008 in North America. The Nintendo DS version was the first installment of the Chrono series to be released in Europe and Australasia. In 2011, Chrono Trigger was rereleased on the Nintendo Wii's Virtual Console and the PlayStation 3's PlayStation Network. Today, Chrono Trigger is regarded as one of the greatest games of all time.
Radical Dreamers: Nusumenai Hōseki (literally "The Jewel that cannot be Stolen") is a game that was only released in Japan. Radical Dreamers is a text-based game released in 1996 through the Super Famicom Satellaview extension. The main character of the game is Serge, a young adventurer. Serge is accompanied by Kid, a teen-aged thief, and Gil, a mysterious masked magician. The story is narrated by Serge's grandchild. The story of Radical Dreamers is a side story to Chrono Trigger wrapping up a loose end from its Chrono Trigger's plot.
Chrono Cross is a role-playing game developed and published by Square Enix and was released on the PlayStation on November 18, 1999 in Japan and on August 15, 2000 in North America. The story is partly a remake of Radical Dreamer's story and is therefore the true successor to Chrono Trigger. On July 6, 2011, Chrono Cross was rereleased on the Japanese PlayStation Network. Two days later, Chrono Cross was rereleased on the PlayStation Network in North America. 
Chrono Break's fan made logo.
Chrono Brake and Chrono Break are the names of two trademarks previously owned by Squaresoft. Chrono Brake was registered in Japan on November 5, 2001. Chrono Break was registered a month later in the United States on December 5, 2001. No further news was given from Squaresoft and the American trademark Chrono Break was eventually dropped on November 13, 2003.
Chrono Trigger's DS cover.