| Title | Code | Date | Publisher | System (Setting) |
|---|
 Halloween Horror | CHA0326 | 2005 | Chaosium | Call of Cthulhu (Classic), Call of Cthulhu (Now) |
| Halloween Horror 2 | CHA0333 | 2006 | Chaosium | Call of Cthulhu (Classic), Call of Cthulhu (Now), Call of Cthulhu (Dark Ages) |
| Halloween Horror Returns! | CHA0347 | 2007 | Chaosium | Call of Cthulhu (Classic) |
| The Bride of Halloween Horror | CHA0364 | 2009 | Chaosium | Call of Cthulhu (Invictus), Call of Cthulhu (Strange Aeons) [Chronicles of Future Earth], Call of Cthulhu (Now), Call of Cthulhu (Dark Ages), Call of Cthulhu (Classic) |
| Plan 09 From Halloween | CHA0379 | 2009 | Chaosium | Call of Cthulhu (Classic), Call of Cthulhu (Now) |
| Dead Leaves Fall | CHA0406 | 2011 | Chaosium | Call of Cthulhu (Atomic), Call of Cthulhu (Classic), Call of Cthulhu (Strange Aeons) [1780s], Call of Cthulhu (Now), Call of Cthulhu (Invictus) |
| Horror Stories From the Red Room | CHA0413 | 2013 | Chaosium | Call of Cthulhu (Classic), Call of Cthulhu (Now), Call of Cthulhu (Invictus), Call of Cthulhu (Strange Aeons) [1800s] |
