Worlds of Kingdom Hearts is a large project representing the worlds that appear throughout the Kingdom Hearts franchise. The aim of this map is to combine locations from different games to create much more explorable and bigger worlds, while trying to stay true to most of the actual in-game locations.
This map was started in the mid-2017.

Worlds: Currently there are only seven worlds available; Destiny Islands, Disney Castle, Traverse Town, Wonderland, Olympus Coliseum, Deep Jungle and Mysterious Tower. Each world has combined environments from different games they appear in. For example, Wonderland has locations from both KH1 and Union X, with portions from Days being added in future updates as well.
Each world currently is widely explorable and playable, but also more or less partially unfinished, which will be fixed soon enough.
The map utilizes command-block systems for entering worlds from the Stations of Awakening as well as entering and exiting different interior locations. If someone finds their command block codes missing, ill add a list below the describtion.

Twilight Town, Radiant Garden, Data World copies, Dwarf Woodlands, Castle of Dreams, Keyblade Graveyard, Enchanted Dominion, Atlantica, Halloween Town, Christmas Town, Pride Lands, Agrabah, Pranksters Paradise, Monstro, La Cite Des Cloches, Space Paranoids, The Grid, Castle Oblivion (with its floor copies of other worlds), Underworld, Disney Town, Land of the Dragons, Beasts Castle, Deep Space, Mirage Arena, End of the World, Neverland (with the additional islands and Hooks ship), The World That Never Was, Symphony of Sorcery, Country of the Musketeers, Port Royal, Timeless River, Daybreak Town and any other additional world that comes along the way will all eventually be added in upcoming updates.

Do also check out my Steven Universe map, if you haven´t already ;)
Everyone have fun and may your hearts be your guiding key!