International Superstar Soccer (known as Jikkyō World Soccer in Japan) is the name of a series of football video games developed by Japanese company Konami, mostly by their Osaka branch, Konami Computer Entertainment Osaka (KCEO). Titles in the series appeared on Super NES, Mega Drive, Nintendo 64, PlayStation, PlayStation 2, Xbox, Nintendo GameCube and PC formats. International Superstar Soccer should not be confused with Konami Computer Entertainment Tokyo's Pro Evolution Soccer series (also known as Winning Eleven), which was originally developed for the PlayStation.