Which company was this American game designer who designed the set of Planescape Campaign Setting employed for more than a decade?
David Cook (game designer) David "Zeb" Cook is an American game designer, best known for his work at TSR, Inc., where he was employed for over fifteen years.
Frank Chadwick Frank Chadwick is an American multiple-award-winning game designer and "New York Times" Best Selling author. He has designed hundreds of games, his most notable being the RPGs "Traveller", "" and "Twilight 2000", and the wargame series "Europa" and "The Third World War".