Search The Directory The Web for Home > Games > Roleplaying > World Building > Genres > Science_Fiction New! Submit a site   Categories: Created Worlds *(3)       whatUseek Collection Sites (submit a site ):   Give your site great placement in this category in as little as two business days!     whatUseek Directory Site Listings:   Constructing an SF Universe - Excellent article by professional, published science fiction author, S. Andrew Swann.   Pegasus Nest: Worldbuilding - The page is oriented toward fantasy/science fiction writers, BUT the principles of good worldbuilding should apply to rpg's as well.   Planetary Fact Sheets - Extensive physical data describing the planets, satellites, and comets of our solar system, courtesy of NASA's National Space Science Data Center. Potentially useful to designers of science fiction settings and the detail-minded. Help build the largest human-edited directory on the web.   Submit a Site - Open Directory Project - Become an Editor

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