Kingdom Hearts: The Dark Seeker Saga is the complete collection of the Kingdom Hearts series ending with III. It includes upgraded versions of 1.5, 2.5 and 2.9 for both Xbox One and PS4. It has Kingdom Hearts III Final Mix. The entire collection is cased inside a replica of Kingdom Hearts.
- Disc One: Final Mix, re:Chain of Memories, Days, II Final Mix, Birth by Sleep Final Mix, re:Coded
- Disc Two: Dream Drop Distance, Back Cover, A Fragmentary Passage
- Disc Three: III Final Mix and Behind the Scenes
- Replica of Sora's Keyblade.
- Neoshadow plush.
- Journal by Tetsuya Nomura.
- Pictures of various Disney movie fights from 1937-present and concept art.