Star Trek Roleplaying Game (Last Unicorn)
Last Unicorn Games role playing games. All of the books use the same rules based on the "Icon system" and thus complement each other.

Published guidebooks

Star Trek: The Next Generation Role Playing Game

The  series focuses principally on United Federation of Planets and Starfleet.

 (LUG 25000) Star Trek: The Next Generation - Core Game Book (1998)
 (LUG 25001) Star Trek: The Next Generation - Narrator's Toolkit (1998)
 (LUG 25002) Star Trek: The Next Generation - Player's Guide (1999)
 (LUG 25100) The Price of Freedom – The United Federation of Planets Sourcebook (1999)
 (LUG 25101) The First Line - Starfleet Intelligence Handbook (1998)
 (LUG 25102) Planets of the UFP – A Guide To Federation Worlds (1999)
 (LUG 25103) The Way of Kolinahr – The Vulcans (1998)
 (LUG 25300) A Fragile Peace: The Neutral Zone Campaign Volume 1 (1998)
 (LUG 25301) Planetary Adventures – Federation Space Volume 1 (1999)
 (LUG 25303) Holodeck Adventures (1999)
 (LUG 25500) The Way of D'era – The Romulan Star Empire Boxed Set (1999)
 (LUG 25501)  Boxed Set (1999)
 (LUG 25600) Federation Away Team Miniatures (1998)

Star Trek: Deep Space Nine Roleplaying Game

The  series is darker, focusing on worlds outside the UFP and developing characters in margin of Federation values (i.e. smuggler, spy, etc.)

 (LUG 35000) Star Trek: Deep Space Nine - Core Game Book (1999)
 (LUG 35001) Star Trek: Deep Space Nine - Narrator's Toolkit (1999)
 (LUG 35100) Raiders, Renegades & Rogues Sourcebook (2000)

Star Trek (TOS) Roleplaying Game

The  series focuses on the 23rd century.

 (LUG 45000) Star Trek: The Original Series - Core Game Book (1999)
 (LUG 45001) Star Trek: The Original Series - Narrator's Toolkit (1999)
 (LUG 45101) Among the Clans – The Andorians

Star Trek: The Expanded Universe

"The Expanded Universe" series focuses on common themes to all the series, including time travel and new starships.

 (LUG 15002)  – The Time Travel Sourcebook (1999)

eBook supplements 
Official supplements were also, at that time, available on Last Unicorn Games website under the name "LUG Icon Link."

 A Fragile Peace Maps (1999 PDF)
 The Next Generation Player's Guide (1999)
 The Crusoe Effect (1999 PDF)
 Holodeck Adventures – The Skull And The Sword (1999 PDF)
 Starfleet Academy (1999 PDF)
 Starfleet Academy Sol System map (1999 PDF)
 The Way of D'era – The Tal Diann (1999)
 The Way of D'era – Soldiers of the Planetary Command (1999)
 The Way of D'era – Vel'Tar Class Dropship (1999)
 TNG Data Forms (1999 PDF)
 Raiders, Renegades & Rogues (2000 PDF)
 DS9 Core Game Book – Preview 1, 2, 3, and 4 (1999 PDF)
 Deep Space Nine Narrator's Toolkit preview (1999 PDF)
 DS9 Data Forms (1999 PDF)
 TOS Character Data Sheet (1999 PDF)
 Among the Clans supporting material (1999 PDF)
 Among the Clans preview (1999 PDF)
 The Klingon Empire: Blood And Honor – Preview 1 and 2 (2000 PDF)
 Starfleet Enlisted Rank Insignia

Appendices

Unpublished content

Unpublished books 

 Final Frontiers: The Star Trek Films
 The Star Trek Guide to Parallel Planets: Hodgkin's Law
 The Klingon Empire: Blood and Honor
 (LUG 25302) Operation Stormbird: The Neutral Zone Campaign Vol. 2
 The Starfleet Exploration Handbook: To Boldly Go
 The Starfleet Security Handbook
 Call of the Prophets: The Bajorans
 Dominion War: The Fires of Armageddon
 Merchants & Traders: The Latinum Main
 The Cardassian Union: Iron and Ash
 Through a Glass Darkly: The Mirror Universe
 The Starfleet Starship Construction Manual Vol. 1: Spacedock
 The Starfleet Starship Recognition Manual Vol. 1: The Ships of Starfleet
 The Borg
 (LUG 35002) Star Trek: Deep Space Nine Player's Guide
 The Orion Syndicate
 The Rigel System
 The Dominion Companion
 (LUG 55000) Star Trek: Voyager Core Game Book
 Sky Princes of Orion

Additional author notes 
Some LUG writers published additional content on the work they had done on the unpublished books online.

 The Deltans (Final Frontiers)
 The Regulans (Final Frontiers)
 Rigel III (Sky Princes Of Orion)
 Narrating In Klingon (The Klingon Empire)
 To Serve And Protect: The Security Campaign (The Starfleet Security Handbook)
 Mirror Andoria (Through A Glass Darkly)
 Distant Ports Call (Merchants & Traders)
 Exploration For The Narrator (To Boldly Go)

 Ash & Iron: The Cardassians – Chapters 4, 5, and 6
 Blood & Honor: The Klingons – Chapters 2 and 8
 Merchants & Traders – Chapters 5 and 8
 The Starfleet Security Handbook – Chapters 2 and 4
 Through A Glass Darkly: The Mirror Universe – Chapters 1, 2, 5, and 6

Spacedock! (Steven S. Long)
 Spacedock – The Advanced Starship And Construction Manual (2000 PDF)
 Spacedock – Ship Recognition Manual 1 – The Ships of Starfleet (2000 PDF)
 Spacedock – Ship Recognition Manual 2 – The Cardassian Union (2001 PDF)
 Spacedock – Ship Recognition Manual 3 – The Klingon Empire (2001 PDF)
 Spacedock – Ship Recognition Manual 4 – Original Series Era (2002 PDF)
 Spacedock – Ship Recognition Manual 5 – The Romulan Star Empire (2006 PDF)
 DS9 The Dominion War Sourcebook – The Fires of Armageddon (2001 PDF)

External links 
 
 
Role-playing games