Star Ocean: The Second Story is an action role-playing video game developed by tri-Ace and published by Enix for the PlayStation. It is the second game in the Star Ocean series and the first game in the series to be released outside Japan, arriving in North America in May 1999 and Europe in April 2000, courtesy of Sony Computer Entertainment. Taking place in a science fantasy universe, the story centers around a young man named Claude Kenny, a cadet from a space-faring Earth organization who is stranded on an undeveloped, medieval-level planet. There, he meets several companions and must stop a plot from an evil organization that spans multiple worlds before finding his way home. The game was the basis of manga and anime adaptations.

An enhanced remaster called Star Ocean: Second Evolution was developed by TOSE, later released for the PlayStation Portable in April 2008 in Japan, and 2009 in North America, Europe, and Australia. It features newly animated cutscenes by Production I.G, a re-recorded soundtrack, and additional story elements.

Second Evolution was released for PlayStation 4 and PlayStation Vita in Japan during October 2015 and later PlayStation 3 in December 2015. The Download Version features enhanced graphics and BGM, a new theme song and DLC to help you in the game.^[4] Square Enix currently has no plans to release it outside of Japan.