- Daventry Suite, an unofficial musical sequel to KQ8.
- King's Quest IX: It Takes Two to Tangle; a cancelled fan game that would have had artwork similar to King's Quest 7. Later released as a semi-interactive story.
- The Silver Lining, a fan game formerly known as KQIX: Every Cloak Has A Silver Lining.
- King's Quest IX (AGD Interactive)
- King's Quest IX: The Silver Lining VGA: An elaborate hoax/spoof/joke that was never intended to actually be made into a game.