GURPS Third Edition (1989–2000)
- GURPS Cliffhangers (1989)
- GURPS Cyperpunk (1990)
- GURPS Aliens (1991)
- GURPS Fantasy (1991)
- GURPS Grimoire (1994)
- GURPS Religion (1994)
- GURPS Blood Types: Dark Predators and Deadly Prey (1995)
- GURPS Greece (1995)
- GURPS Psionics (1995)
- GURPS Time Travel (1995)
- GURPS Compendium II (1996)
- GURPS Goblins (1996)
- GURPS Illuminati (1996)
- GURPS Bio-Tech (1997)
- GURPS Black Ops (1997)
- GURPS Compendium I (1997)
- GURPS Magic (1997)
- GURPS Robots (1997)
- GURPS Alternate Earths (1998)
- GURPS Egypt (1998)
- GURPS Technomancer (1998)
- GURPS Wizards (1998)
- GURPS Fantasy Bestiary (1999)
- GURPS New Sun (1999)
- GURPS Special Ops (1999)
- GURPS Swashbucklers (1999)
- GURPS Warehouse 23 (1999)
- GURPS Who's Who 2 (1999)
- GURPS Celtic Myth (2000)
- GURPS Discworld Also (2000)