Collections

GURPS - Generic Universal RolePlaying System

RPGs Adapted to GURPS

Blue Planet (SJG-6721 GURPS Blue Planet)
Bunnies & Burrows (SJG-6060 GURPS Bunnies & Burrows)
Call of Cthulhu (SJG-6070 GURPS CthulhuPunk)
Castle Falkenstein (SJG-6099 GURPS Castle Falkenstein +1)
Conspiracy X (EDN-004 GURPS Conspiracy X)
Deadlands (SJG-6760 GURPS Deadlands: Weird West +4)
In Nomine (SJG-6093 GURPS In Nomine)
Star Fleet Universe (ADB-8401 GURPS 4E Prime Directive +3)
Mage the Ascension (SJG-6068 GURPS Mage: The Ascension)
Traveller (SJG-6600 GURPS Traveller +31; SJG 01-2401 GURPS Traveller: Interstellar Wars)
Vampire the Masquerade (SJG-6076 GURPS Vampire the Masquerade +1)
Werewolf the Apocalypse (SJG-6077 GURPS Werewolf the Apocalypse)
Mage the Ascension (SJG-6068 GURPS Mage the Ascension)

Hârn ("A Whole New World: GURPS on Hârn" by Michael Cule, Roleplayer #26, Oct 1991)

Other Games Adapted to GURPS

Car Wars (SJG-6003 GURPS Autoduel +9)
Illuminati (SJG-6016 GURPS Illuminati)
Ogre (SJG-6097 GURPS Ogre)

Pocket Fantasy ("GURPS In Your Pocket: Converting between Pocket Fantasy and GURPS" by Bob Portnell, Pyramid Online, Jul 30 1999)
Alternity Star*Drive ("New Frontiers: The Star*Drive Universe for GURPS" by Stephen Kenson, Pyramid Online, Apr 07, 2000)

Sengoku (has conversion notes)

Media Adapted to GURPS

Callahan's Crosstime Saloon (SJG-6047 GURPS Callahan's Crosstime Saloon)
Casey and Andy (SJG 82-0011 GURPS Casey & Andy)
Conan (SJG-6012 GURPS Conan +4)
Discworld (SJG-8121 Discworld RPG +1)
Girl Genius (SJG 01-2480 Girl Genius Sourcebook and Roleplaying Game)
Hellboy (SJG-8111 Hellboy RPG)
Horseclans (SJG-6007 GURPS Horseclans)
Humanx Commonwealth (SJG-6009 GURPS Humanx +1)
Lensman (SJG-6067 GURPS Lensman)
Mars Attacks (SJG 01-2510 GURPS Mars Attacks)
Myth: The Fallen Lords (SJG-6095 GURPS Myth)
Planet of Adventure (SJG-6716 GURPS Planet of Adventure)
The Prisoner (SJG-6030 GURPS The Prisoner)
Riverworld (SJG-6028 GURPS Riverworld)
Sid Meier's Alpha Centauri (SJG-6717 GURPS Alpha Centauri)
Solar Cycle [Gene Wolfe] (SJG-6096 GURPS New Sun)
Uplift Universe (SJG-6035 GURPS Uplift)
Viagens Interplanetarias (SJG-6080 GURPS Planet Krishna)
Vorkosigan Saga (SJG 01-2490 Vorkosigan Saga RPG)
War Against the Chtorr (SJG-6053 GURPS War Against the Chtorr)
Wild Cards (SJG-6026 GURPS Wild Cards +1)
Witch World (SJG-6008 GURPS Witch World)