Short answers, pulled from the story.
The Kingdom Hearts series consists of thirteen games available across multiple platforms, with future games planned. The series began with the original Kingdom Hearts in 2002 and most recently includes Kingdom Hearts IV, which Square Enix confirmed was in development in April 2022.
As of March 2022, the Kingdom Hearts series has shipped more than 36 million copies worldwide. Most games in the series have been both positively received by critics and commercially successful.
Kingdom Hearts was conceptualized by Square employees Tetsuya Nomura and Shinji Hashimoto. Nomura serves as the series director and directed the first game, which was his first time in that position. The series is developed and published by Square Enix and owned by The Walt Disney Company.
Japanese singer Hikaru Utada wrote and performed the main theme songs for Kingdom Hearts. The three principal themes are "Hikari" from Kingdom Hearts, "Passion" from Kingdom Hearts II, and "Oath" from Kingdom Hearts III, each with English counterparts titled "Simple and Clean", "Sanctuary", and "Don't Think Twice" respectively. Kingdom Hearts was the first time Utada had produced a song for a video game.
Kingdom Hearts III was released on the 25th of January 2019 in Japan and on the 29th of January 2019 worldwide. The game concludes the Dark Seeker Saga, the narrative arc revolving around the antagonist Xehanort that spans the entire original series.
Yes. Shiro Amano adapted Kingdom Hearts into manga form, originally serialized in Monthly Shonen Gangan in Japan, with the first collected volume released in October 2003. The series spans five manga adaptations covering the main games, and a parallel light novel series written by Tomoco Kanemaki and illustrated by Amano also adapts each game. Yen Press currently holds US publishing rights.