A complete and updated version of the 2d20 System rules, designed for an authentic Star Trek experience. An extensive primer on Star Trek, including details on a range of societies, worlds, species, and the scientific concepts that underpin this timeless universe. Fourteen player character species to choose from, including Andorian, Cardassian, Klingon, Orion, and Vulcan. Guidelines for both novice and experienced gamemasters, offering advice on challenging your players with dramatic and thoughtful gameplay, unique to the Star Trek universe. Game statistics and graphics for 15 playable starship classes, including Federation, Klingon, and Romulan vessels. Dozens of non-player characters, starships, and creatures to populate your missions, including Federation, Klingon, Cardassian, and Dominion. Historical excerpts, personal logs, and intercepted communications provide fresh perspectives and insights from across the Galaxy. Created by an expert Star Trek development team, including a diverse mix of experienced and new artists, designers, editors, and writers.