Also known as: アンチェインドキー, ユニオンクロス, キングダムハーツユニオンクロス, KHx, KHUX
Mobile phone (formerly browser-based) social RPG, eighth title and prequel of the KINGDOM HEARTS videogame series. Players are custom Keyblade wielders organized under five Unions. Various Disney worlds and characters return, and a wide variety of new Heartless (Kingdom Hearts) are featured. The featurette KINGDOM HEARTS χ Back Cover expands on events of this game.
Versions
- KINGDOM HEARTS χ[chi] (Browser, 2013-2015)
- KINGDOM HEARTS Unchained χ (Mobile, 2015-Present)
- KINGDOM HEARTS Union χ[Cross] (rebranded since 2017)
Characters
- Player Character (Kingdom Hearts X)
- Chirithy
- Ephemer (Kingdom Hearts)
- Skuld (Kingdom Hearts)
- Ventus (Kingdom Hearts)
- Brain (Kingdom Hearts)
- Lauriam
- Strelitzia (Kingdom Hearts)
- Elrena
- Maleficent
- Darkness (Kingdom Hearts)
Foretellers
