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Alternity is a Science-Fiction Role Playing Game published by TSR/WotC, featuring campaign setting genres such as Dark Matter (modern day conspiracy), Star Drive (futuristic space opera), Gammaworld (post apocalypse science-fantasy), Starcraft (futuristic alien warfare) and Tangents (everything else). Alternity is also quite suited to running gritty realistic Fantasy settings and there are many downloads to support the fantasy genre. Thousands of sourcebooks, expansions, PDFs, modules and resources have been created by the fans and members of this community - covering all topics including new species, vehicles, weapons & armor, spaceships, short stories, cyberware, adventures, campaigns, character artworks, star maps, articles, characters and new rules - all available for free from this site.