Kingdom Hearts Union χ
Kingdom Hearts Union X Logo KHUX
キングダムハーツ ユニオンクロス
Kingudamu Hātsu Yunion Kurosu
Developer(s) Square Enix
Publisher(s) Flag of Japan Square Enix
Release date(s) Flag of Japan March 23, 2017

Flag of the United States/Flag of Canada April 6, 2017
European flag.svg/Flag of Australia April 6, 2017

Genre Smartphone RPG
Game modes TBA
Ratings CERO:
ESRB: E10+
Platform(s) iOS, Android

Kingdom Hearts Union χ, stylized as Kingdom Hearts Union χ[Cross], is a Kingdom Hearts game exclusive to the iOS and Android smartphone platforms. It is a sequel/continuation of Kingdom Hearts Unchained χ.


  • Union χ retains the gameplay found in Unchained χ, with all in-game data being carried over.
  • Multiplayer is introduced: players are able to team up with up to five members of their Party and tackle special Quests together.
  • Theater Mode is introduced: story cutscenes of completed quests can be viewed at any time.
  • Medal Traits are introduced: fusing a medal with the same name and rarity will add a random trait.
  • Tutorial Quests have been added.
  • Buffs can now stack up to 7 times instead of 3.
  • Medal cost can now be reduced by a maximum of 20 instead of 10.
  • Special Attack Bonuses can be unlocked by completing quest 34 instead of 200.
  • New parameters have been added to the medal filter.
  • Pulled medals now display their Special Attack Bonus tier.


On August 6th, 2018 Square Enix hosted a collaboration event featuring Disney/Pixar's new film Incredibles 2. The event runs through August 19th, 2018. Players can take part in a variety of events including Banner Medals featuring the Parr family, a 'High Score Challenge' that rewards "Bob & Jack-Jack" Medals, and VIP rewards from the Weekly Jewels Extravaganza bundle. [1]

External linksEdit


Kingdom HeartsChain of MemoriesKingdom Hearts IIcoded358/2 DaysBirth by Sleep3D: Dream Drop Distanceχ [chi]Back Cover0.2 Birth by SleepKingdom Hearts III
Other titles
Remakes and Remasters
Re:Chain of MemoriesRe:codedUnchained χUnion χDream Drop Distance HD
Trinity Master PiecesII Final Mix+10th Anniversary BoxHD 1.5 ReMixHD 2.5 ReMixHD 2.8 Final Chapter Prologue1.5 + 2.5 ReMIX
Final Mixes
Final MixII Final MixBirth by Sleep Final Mix
Non Canon Titles
V CASTMobileMagical Puzzle ClashGummiship Studio
Plot elements
Characters | Heartless | Nobodies | Unversed | Dream Eaters | Replicas | Heart | Soul | Body | Memory | Keyhole | Gate | Keyblade | Light | Darkness
Mark of Mastery | Book of Prophecies | χ-blade | Foreteller
Game elements
HP | AP | Munny | Magic | Heart Points | Save Point | Gummi Ship | Cards | Medal | Level | Flowmotion | Jiminy's Journal | Point of No Return