Kingdom Hearts 2.5 HD Remix included Kingdom Hearts II, Kingdom Hearts Re:coded, and Kingdom Hearts Birth by Sleep, and shipped in 2014.
Kingdom Hearts 1.5 HD Remix included the original Kingdom Hearts game, as well as Kingdom Hearts: Chain of Memories and Kingdom Hearts: 358/2 Days, and shipped in 2013.
The game includes Kingdom Hearts: Dream Drop Distance HD, Kingdom Hearts χ Back Cover, and Kingdom Hearts 0.2 Birth by Sleep -a fragmentary passage-.
Kingdom Hearts 3 co-director Tai Yasue stated in an interview with game news website Gamespot that Square Enix has not “ruled out the idea” of a PlayStation 4 compilation for its Kingdom Hearts role-playing game series.