GURPS Fourth Edition (2005–2010)
- GURPS Banestorm (2005)
- GURPS Infinite Worlds (2005)
- GURPS Bio-Tech (2006)
- GURPS High-Tech (2007)
- GURPS Martial Arts (2007)
- GURPS Mysteries (2008)
- GURPS Supers (2008)
- GURPS Thaumatology (2008)
- GURPS Psionic Powers (2009)
- GURPS Vorkosigan Saga (2009)
- GURPS Low-Tech (2010)