For the Star Trek RPG. *Over 50 alien species taken straight from the episodes of Star Trek.*New information and excyclopedic treatment that describes all manner of aliens, from the indomitable Borg, to the obscure Yridians.*All new content to update and expand upon aliens who have brief but prior treatments, such as the Andorians, as well as comprehensive material up to the current Star Trek universe's events, such as data on the Romulans from Nemesis.*Detailed information and discussions of aspects of the Star Trek universe never before seen on the television show.*Designed with information about worlds in all eras, for fans and players of any of the series.*A must have for all player's and narrators!