This is the universe that all worlds in the Kingdom Hearts universe are located in. The locations include the usual ones revealed in both games as well as ones yet to be discovered.

Sora, Kairi, and Riku's current home world, as well as where several others live. It was where they'd started their first journey into all the other worlds with the Keyblades.

This is the underwater world that King Triton and Ariel belong to. (Any character that comes here will get turned into a sea creature, or a merperson-ish creature, but you pick the creature they get turned into.)

This is where Jack Sparrow lives and where pirates run rampant, as well as sea creature, including the Kraken and Davy Jones. Also has Blackbeard's Curse, that turns you into a skeleton in the moonlight.

A field that has the Three Legendary Keyblades in the middle of a cross pathway, along with an endless sea of Keyblades in every direction, in every shape and size. An excellent battleground for Keybearers who want to spar or actually fight.

The place where Sora encountered several Organization XIII members and ended up getting his memories unchained. It is an entirely white castle and currently abandoned, spanning several floors.

This is where Simba, Nala, and their other Pride Lands friends live. (Any character that comes here will be turned into a prairie creature, but you pick the creature.)

This is where Aladdin and Jasmine live, and it is situated in the middle of the desert. Also includes a magical carpet and a Genie.

Riku's home and where he feels safest other than being around Sora and Kairi. It is decorated in bright colors and is very much crisp-cut. Empty save for Riku, due to his parents getting turned into Heartless.

The castle inside of the World That Never Was where all of the members--or former members, if they happen to return--live in. It is also where they held meetings and such.

The world that Organization XIII usually did all of their work from, moving to other worlds from here using their portals of darkness.

The town Roxas had stayed in while DiZ and 'Ansem' along with Namine were piecing together Sora's memories again.

This is Roxas' house, where he stayed in temporarily, and which is decorated with stars and moons and outer space. It is now his permanent residence and where he tends to retreat to sleep.

Sora's home and where he feels most safe, other than around his friends, Kairi and Riku. It is decorated in a very beach-like manner, although Sora's room happens to be a mess. Empty save for Sora due to his parents getting turned into Heartless.

Kairi's home and where she feels safest other than around her friends Sora and Riku. It is decorated with flowers and plants and is very bright-colored. Empty save for Kairi, as her guardians had been turned into Heartless.