Game Players Network: Review of the GURPS Prime Directive core rulebook.
GURPS Prime Directive: Star Fleet Universe role playing game in the empires of Star Fleet Battles.
Ogre Cave: GURPS Prime Directive core rulebook review by Matthew Pook.
Prime Directive Online: Defenders of the Faith online roleplaying campaign.
Steve Jackson Games: How to use the core Prime Directive rulebook in a GURPS game.