Big list here too.
https://en.wikipedia.org/wiki/List_of_D6_System_books
List of D6 System books is a listing of commercially released books from West End Games, its successors, and licensees for the D6 System role-playing game. This does not include various free downloads, fan-made works or forthcoming releases. Accessories such as card decks, screens and miniatures are also not listed. All books are print editions unless noted as otherwise.
Ghostbusters: A Frightfully Cheerful Roleplaying Game (1986)
Ghost Toasties w/GM Screen (1986)
Hot Rods of the Gods (1986)
Scared Stiffs (1987)
Ghostbusters International (1989)
ApoKERMIS Now! (1989)
Ghostbusters II - The Adventure w/GM Screen (1989)
Tobin's Spirit Guide (1989)
Lurid Tales of Doom (1990)
Pumpkin Patch Panic (1990)
The Star Wars Roleplaying Game (1987)
The Star Wars Sourcebook (1987)
Campaign Pack (1988)
Tatooine Manhunt (1988)
Imperial Sourcebook (1988)
Strike Force Shantipole (1988)
Battle for the Golden Sun (1988)
Star Fall (1989)
Otherspace (1989)
Otherspace II: Invasion
Scavenger Hunt (1989)
Riders of the Maelstrom (1989)
Crisis on Cloud City (1989)
The Far Orbit Project (1998)
Black Ice
The Game Chambers of Questal
Domain of Evil (1991)
The Isis Coordinates (1990)
Death in the Undercity
Rebel Alliance Sourcebook (1989)
Graveyard of Alderaan (1989)
Death Star Technical Companion (1991)
Cracken's Rebel Field Guide
Flashpoint! Brak Sector (1995)
The Rules Companion
Galaxy Guide 1: A New Hope
Galaxy Guide 2: Yavin and Bespin
Galaxy Guide 3: The Empire Strikes Back
Galaxy Guide 4: Alien Races
Galaxy Guide 5: The Return of the Jedi
Galaxy Guide 6: Tramp Freighters
Galaxy Guide 7: Mos Eisley
Galaxy Guide 8: Scouts
Galaxy Guide 9: Fragments from the Rim
Galaxy Guide 10: Bounty Hunters
Galaxy Guide 11: Criminal Organizations
Galaxy Guide 12: Aliens - Enemies and Allies
Fantastic Technology: Guns and Gear
Planets of the Galaxy Volume 1
Planets of the Galaxy Volume 2
Planets of the Galaxy Volume 3
Wanted by Cracken
Dark Force Rising Sourcebook
Heir to the Empire Sourceook
The Last Command Sourcebook
Thrawn Trilogy Sourcebook
Dark Empire Sourcebook
Movie Trilogy Sourcebook
Creatures of the Galaxy
Cracken's Rebel Operatives
Han Solo and the Corporate Sector Sourcebook
Heroes and Rogues
Goroth - Slave of the Empire
The Planets Collection
Platt's Starport Guide
Alliance Intelligence Report
Hideouts and Strongholds
Rules of Engagement: The Rebel SpecForce Handbook
Fantastic Technology: Droids
Shadows of the Empire Sourcebook
Secrets of the Sisar Run
Cracken's Threat Dossier
Platt's Smugglers Guide
Pirates and Privateers
Stock Ships
Wretched Hive of Scum and Villainy
Black Sands of Socorro
Fantastic Technology: Personal Gear
Alien Encounters
Lord of the Expanse
The Player's Guide to Tapani
The Darkstryder Campaign
Darkstryder: Endgame
Darkstryder: The Kathol Outback
Darkstryder: The Kathol Rift
Tales Of The Jedi Sourcebook
Gamemaster's Guide
Truce At Bakura Sourcebook
Jedi Academy Trilogy Sourcebook
Movie Trilogy Special Edition Sourcebook
The Star Wars Roleplaying Game, 2nd Edition (1992)
The Star Wars Roleplaying Game, 2nd Edition Revised & Expanded (1996)
The D6 System: The Customizable Roleplaying Game (1996)
Indiana Jones Adventures (1996)
Men in Black (1997)
The Director's Guide (1997)
Aliens Recognition Guide #1 (1997)
Introductory Adventure Game (1998)
The Hercules & Xena Roleplaying Game1 (1998)
DC Universe1 (1999)
DC Universe Narrator's Screen (1999)
Daily Planet Guide to Gotham City, The (2000)
Daily Planet Guide to Metropolis, The (2000)
Gotham City Sourcebook (2000)
JLA Sourcebook (2000)
Metropolis Sourcebook (2000)
Department of Extranormal Operations Agent Manual, The (2001)
Department of Extranormal Operations: Directive on Superpowers (2001)
JSA Sourcebook (2001)
Magic Handbook (2001)
Metabarons (2001)
Gamemaster Screen (2001)
Guidebook #1 - Path of the Warrior (2002)
Psibertroopers
D6 Adventure (PDF only, 2003)
D6 Adventure Rulebook (2004)
Bloodshadows Worldbook (2004)
Adventure Locations (2004)
Adventure Creatures (2005)
D6 Space Opera (PDF only, 2003)
D6 Space Rulebook (2004)
Space Ships (2004)
Space Aliens 1 (2005)
Fires of Amatsumara Worldbook (2005)
D6 Fantasy Rulebook (2004)
Fantasy: Locations (2004)
Fantasy: Creatures (2005)
Khepera Publishing
Godsend Agenda D6
Godsend Agenda: Mythos
D6 Powers
Godsend Agenda: U.S.E.R.'s Most Wanted
Godsend Agenda: Godmaker
West End Games
Bill Coffin's Septimus2 (2009)