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John Scott Tynes (born 1971) is an American writer best known for his work on role-playing games such as Unknown Armies, Delta Green, Puppetland, and for his company, Tynes Cowan Corporation. Under its imprint, Pagan Publishing, Tynes Cowan Corp. produces third-party books for the Call of Cthulhu role-playing game under license from Chaosium as well as fiction and non-fiction books under its imprint, Armitage House.