Kingdom Hearts[a] is a series of action role-playing games developed and published by Square Enix (originally by Square) and owned by The Walt Disney Company. A collaboration between the two companies, it was conceptualized by Square employees, Japanese game designers Tetsuya Nomura and Shinji Hashimoto; Nomura serves as the series' director.

Kingdom Hearts is a crossover of various Disney properties based in an original fictional universe. The series centers on the main character, Sora, and his journey and experiences with various Disney characters, as well as some from Square Enix properties, such as Final Fantasy, The World Ends with You, and Einhänder, in addition to original characters and locations created specifically for the series.

The series consists of thirteen games available for multiple platforms, and future games are planned. Most of the games in the series have been positively received and commercially successful. As of March 2022, the Kingdom Hearts series has shipped more than 36 million copies worldwide. A wide variety of related merchandise has been released along with the games, including soundtracks, action figures, companion books, light novels, a collectible card game, and a manga series.

Media

Main article: List of Kingdom Hearts media

Games

Release timeline

Main series in bold

2002Kingdom Hearts20032004Chain of Memories2005Kingdom Hearts II20062007Re:Chain of Memories2008CodedMobile2009358/2 Days2010Birth by SleepRe:coded20112012Dream Drop Distance20131.5 Remixχ20142.5 Remix2015(Unchained / Union) χ201620172.8 Final Chapter Prologue20182019Kingdom Hearts III2020Dark RoadMelody of MemoryTBAKingdom Hearts IV

• Kingdom Hearts is the first game in the series, released in Japan on March 28, 2002, for PlayStation 2.[1][2] Tetsuya Nomura served as game director, his first time in this position. Kingdom Hearts introduced the main characters (Sora, Kairi, and Riku) of the series, and established the plot's framework involving hearts and dark beings known as the Heartless. It also established the role of Disney characters in the series, with character cameos from the Final Fantasy series. Kingdom Hearts was released in North America on September 17, 2002,[1][2] and featured additional content that was not in the original Japanese version. The game was later re-released in Japan as Kingdom Hearts Final Mix on December 26, 2002.[1][2] Final Mix includes the content from the North American release and additional enemies, cutscenes, and weapons.[3]

• Kingdom Hearts: Chain of Memories is a direct sequel to the first game. It was released on the Game Boy Advance in Japan on November 11, 2004.[4][5] Chain of Memories was touted as a bridge between the two PlayStation 2 games, introducing and previewing plot elements that would be explored in the next game.[6] The gameplay system is a departure from the original and employs card game mechanics in real time. Players construct decks out of cards that correspond to different actions in battle, such as attacking or using magic. It was remade into a PlayStation 2 game titled Kingdom Hearts Re:Chain of Memories, which contains polygonal graphics instead of the sprites used in the original game. The remake was released in Japan as a second disc packaged with Kingdom Hearts II Final Mix on March 29, 2007, and in North America as a standalone game on December 2, 2008.[7][8]

• Kingdom Hearts II takes place one year after the events of Chain of Memories. It was released for the PlayStation 2 in Japan on December 22, 2005.[9][10] The game further explores the "heart" concept by involving a new group of enemies, the Nobodies, which are the cast-off shells of those who have become Heartless. The gameplay is similar to that of the first Kingdom Hearts game, with the addition of the Reaction Command, which performs reflex-sensitive actions in battle. Kingdom Hearts II was revised into Kingdom Hearts II Final Mix, which contains more material than the original release, such as additional cutscenes and bosses. Kingdom Hearts II Final Mix was released with Kingdom Hearts Re:Chain of Memories in a collection titled Kingdom Hearts II Final Mix+, which was released in Japan on March 29, 2007.[11]

• Kingdom Hearts Coded is an episodic mobile phone game that picks up directly after Kingdom Hearts II. The "preinstall" episode was released in Japan on November 18, 2008, and eight episodes were released between June 3, 2009, and January 28, 2010.[12] The game was remade for the Nintendo DS as Kingdom Hearts Re:coded, and features updated gameplay combining that of two later entries in the series, 358/2 Days and Birth by Sleep. Unlike the original version, Re:coded was released internationally: October 7, 2010, in Japan;[13] January 11, 2011, in North America;[14] and January 14, 2011, in Europe.[15]

• Kingdom Hearts 358/2 Days was released for the Nintendo DS in Japan on May 30, 2009. It is primarily set between Kingdom Hearts and Kingdom Hearts II, focusing on Roxas' time in Organization XIII and his motives for leaving. It is the first game in the series to feature cooperative multiplayer in addition to the traditional use of AI-controlled partners.[16][17] Gameplay is mission-based with optional objectives that yield additional rewards. The game also has a unique panel system which governs character improvement, special abilities, and equipped weapons.

• Kingdom Hearts Birth by Sleep is a prequel to the series, released for the PlayStation Portable in Japan on January 9, 2010, and in North America on September 7, 2010, with additional content.[18] The game is set ten years before the events of the first Kingdom Hearts game, revealing the origins of the villain, Xehanort.[19] It consists of four scenarios, three of which focus on one of the game's three protagonists, Terra, Ventus, and Aqua. The game was re-released in Japan under the title Kingdom Hearts Birth by Sleep Final Mix on January 20, 2011, with the content from the English versions as well as new features, such as an additional fifth scenario.

• Kingdom Hearts 3D: Dream Drop Distance was released on March 29, 2012, in Japan for the Nintendo 3DS. The game focuses on Sora and Riku's Mark of Mastery exam under Yen Sid in anticipation of Xehanort's return and their subsequent conflicts with enemies from their past.[20] In addition to similar systems inherited from Birth by Sleep, this game features "Dream Eaters" which serve as both enemies and allies. Players may collect and breed friendly Dream Eaters and train them to become more powerful. The English edition came out on July 20, 2012, in Europe while it came out on July 31, 2012, for North America.

• Kingdom Hearts χ: At Tokyo Game Show 2012, Square Enix announced Kingdom Hearts χ, previously known as Kingdom Hearts for PC Browsers.[21] It is a browser game for PCs, and was only playable in Japan from July 2013 to September 2016. It features cartoon-like 2D models and is a prequel to the series, detailing the events leading up to the Keyblade War.

  • Kingdom Hearts: Unchained χ: An international port of Kingdom Hearts χ that was released for Android and iOS devices.[22] Unchained χ was released in Japan on September 3, 2015,[23] in North America on April 7, 2016,[24][new archival link needed] and in Europe on June 16, 2016.[25] Later in April 2017, it was rebranded as Kingdom Hearts: Union χ, featuring an all-new story that expanded and diverged from the original.[26] In January 2019, the game was available on the Amazon Appstore for Amazon devices.[27] The app was rebranded once again to Kingdom Hearts: Union χ Dark Road with the release of Kingdom Hearts Dark Road.[28] The game was shut down and converted into a cutscene viewer in May 2021, and delisted in August 2024.[29]

  • Kingdom Hearts Dark Road is a mobile game accessed within Kingdom Hearts Union χ[Cross],[28] which released worldwide on June 22, 2020.[30] The game is set 70 years before Birth by Sleep and explores the origins of Xehanort and his eventual turn to darkness,[31] and was developed by the same team working on Union χ.[32] Following the shutdown of Union χ, Dark Road was converted into an offline game and received its final story update in August 2022.[33]

• Kingdom Hearts III: In September 2010, Tetsuya Nomura stated that his team was too busy with other projects such as Final Fantasy XV (known as Final Fantasy Versus XIII at the time) to work on Kingdom Hearts III. He also stated that his team was researching how to create the high-definition graphics of the game, which depended on the technical restrictions of the next generation consoles.[34] On June 10, 2013, at the E3 Sony press conference, after years of rumors and speculations, Nomura introduced a teaser for Kingdom Hearts III, which stated it was in development for the PlayStation 4. It was announced the next day to be in development for the Xbox One as well.[35] In Kingdom Hearts III, Sora embarks on a journey to regain his lost "Power of Waking" while Riku and Mickey search for Aqua, Terra, and Ventus in preparation for their final battle against Xehanort. The game concludes the "Dark Seeker Saga".[36] The game was released on January 25, 2019, in Japan and on January 29 worldwide.[37][38]

  • Kingdom Hearts III + Re Mind: A port of Kingdom Hearts III with the Re Mind DLC included that was released for Windows and the Nintendo Switch. It was initially released on Windows exclusively via the Epic Games Store on March 30, 2021, followed by a Steam release three years later on June 13, 2024.[39][40] A cloud version for the Nintendo Switch was announced during Sora's reveal as the final DLC fighter for Super Smash Bros. Ultimate on October 5, 2021, and released as part of the series' 20th anniversary celebration on February 10, 2022.[41]

• Kingdom Hearts: Melody of Memory is a rhythm-based game for the Nintendo Switch, PlayStation 4, and Xbox One.[42][43] It released in Japan on November 11, 2020, and worldwide on November 13.[44] Featuring 140 songs, it sees players travel to each stage in a Gummi ship, and features gameplay similar to Theatrhythm Final Fantasy.[42][43][45] Melody of Memory continues Kairi's story from the end of Kingdom Hearts III,[45] with Nomura saying the Kingdom Hearts III Re Mind title screen laid "some of the groundwork for it".[32]

Future games

Though Kingdom Hearts III was the end of the "Dark Seeker Saga", which revolved around Xehanort, it had been decided where certain characters end up in order to potentially continue their stories in future games.[74] In January 2020, Nomura said there would need to be "more time" before the next main entry in the series,[32] later noting in September that Yozora would "definitely... be involved" in the future of the series, in an unexpected and surprising way.[75] In April 2022, Square Enix revealed Kingdom Hearts IV was in development, confirmed that Sora, Donald, and Goofy would return, and that the game would be set in Quadratum, a realistic world inspired by Tokyo. Kingdom Hearts IV will be the start of the "Lost Master arc".[76] In March 2023, during a Kingdom Hearts Concert Breath Concert, Nomura vaguely announced something happened that determined the "direction of the series" going forward.[77]