The game was announced during E3 2015 to be coming to North America and other territories, though no release window has currently been announced outside of Japan and North America. The game features a few differences in gameplay, the most major being the change of the card gameplay into medals this change was made because of the negative reaction to card mobile games, and the first impression to playtesters was that χ was one, because of the gameplay style. Kingdom Hearts Unchained χ is a mobile remake of the PC-only game Kingdom Hearts χ, released in Japan in 2013.
