TSR

TSR, Inc., was an American game publishing company, founded by Gary Gygax and Dave Arneson as Tactical Studies Rules in October, 1973, in Lake Geneva, WI, to produce their new game, Dungeons & Dragons (D&D). It also sponsored the gaming convention Gen Con.

It was acquired by Wizards of the Coast in 1997.

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Publisher

1973—

This is a publisher page, referring to science fiction book and prozine publishers.