Kingdom Hearts is a series of crossover action role-playing games owned by Disney and developed and published by Square Enix (originally by Square). It is a collaboration between Disney Interactive and Square Enix, and is under the direction of Tetsuya Nomura, a longtime Square Enix character designer.
Kingdom Hearts is a crossover of various Disney properties based in a fictional universe tailored to the game narrative. The series centers on the main character Sora and his journey and experiences with various Disney, Final Fantasy, The World Ends with You and Pixar characters, whilst stopping the various incarnations of the primary antagonist Xehanort throughout the series. All characters original to the Kingdom Hearts franchise are owned by The Walt Disney Company.
The series consists of nine games available for multiple platforms, and future titles are planned. Most of the games in the series have been positively received and commercially successful. As of November 2017, the Kingdom Hearts series has shipped more than 24 million copies worldwide. A wide variety of related merchandise has been released along with the games, including soundtracks, figurines, companion books, novels and manga series.