The list of worlds featured in Square Enix’s upcoming action role-playing game, Kingdom Hearts IV, have possibly been leaked.
An anonymous 4chan user has shared a screenshot containing details from an alleged internal Square Enix document, listing potential worlds for Kingdom Hearts IV. The leak dates back to the early stages of the game’s development, when the project was still being referred to as “Quattro.”

Kingdom Hearts IV Leaked Worlds List
The alleged list, which includes a mix of familiar Disney favorites and returning Kingdom Hearts locations, can be seen below.
- The Final World
- Quadratum
- The Mysterious Tower
- Underworld
- Moana
- Princess and the Frog (tentative)
- Game Central Station
- Niceland
- Cybug Sector
- Candy Kingdom
- Zootopia
- Metroville
- Merida (tentative)
- Inside World
- Land of the Dead
- WALL-E (tentative)
- Galaxy World
- Scala Ad Caelum
- Radiant Garden
- Destiny Island
- WF
Worlds such as Radiant Garden, Scala ad Caelum, and Destiny Island appear alongside new Disney properties like Moana, Zootopia, and Pixar’s Metroville from The Incredibles. There are also several entries tied to Wreck-It Ralph, divided into Game Central Station, Niceland, the Cybug Sector, and the Candy Kingdom. Other noteworthy names include tentative listings for The Princess and the Frog, Brave’s heroine Merida, and WALL-E.
According to the leaker, this document represents only an “initial” proposal of worlds and not the final confirmed selection. In the early stages of planning, the Square Enix team typically puts together a wishlist of films they would like to adapt. Disney then gives a preliminary greenlight before further meetings decide whether each scenario truly aligns with their standards. The anonymous source claimed that Disney has become much stricter in recent years, insisting that any chosen IPs must uphold the company’s “quality values.”
Worlds marked with the placeholder tag are said to have been under review at the time. The leaker also mentioned that Disney sometimes pushes Square Enix toward films not originally listed, even sharing unreleased footage to help the development team adapt the material faithfully.
The source connected the worlds list to Kingdom Hearts: Missing-Link. They noted that many discarded worlds from earlier planning phases were considered for the canceled mobile game, and that Square Enix is now attempting to salvage assets from that project for use in the mainline series. Some Keyblades and Heartless from Missing Link may also appear in Kingdom Hearts IV.