games, Science Fiction RPGs ran yearly, D&D games and CCG tournaments. Tax ruling In 1985, St. Louis Science Fiction Ltd. was subject to an adverse court tax court ruling that denied it non-profit 501(c)(3) status, on the basis that it was not "operated exclusively for exempt purposes", but instead "in part, for the private benefit of artists and dealers", and "in furtherance of substantial nonexempt commercial, and social and entertainment purposes". See also Science fiction fandom List of multigenre conventions References External links Archon's official website Archon's Masquerade web site The North American Science Fiction Convention Human interest news segment on Archon Science fiction conventions in the United States Multigenre conventions Recurring events established in 1977 Conventions in Illinois