the only kingdom hearts game not on any other platform is the rhythm game melody
and i guess that mobile game
otherwise they're all on xbox, playstation, pc, and switch
https://www.playstation.com/en-us/games/kingdom-hearts-iii/?pid=UP0082-CUSA12031_00-COLLECTION300000&pdpr=1
https://www.xbox.com/en-US/games/store/kingdom-hearts-hd-1525-remix/9NHDF1Q6HGMH
https://www.xbox.com/en-US/games/store/kingdom-hearts/C08MW8XHQN9G
https://www.kingdomhearts.com/switch/en-us/
https://store.epicgames.com/en-US/discover/kingdom-hearts
oh actually looks like the melody one is on pc too, and the other consoles, so it's really just the mobile game then
see my gundams here
https://imgur.com/a/F7xKM5r
updated 2/28/24; hg rising freedom