Question: What type of media does Robert J. Schwalb and A Song of Ice and Fire Roleplaying have in common?
Context: Witch Hunter: The Invisible World is an American ENnies-nominated swashbuckling, colonial, horror role-playing game.  It was first published by Paradigm Concepts in 2007 and premiered at the Origins Game Fair.  The players play witch hunters, otherwise-normal men and women who have left their past behind in order to seek and destroy supernatural evil.  Major contributors to "Witch Hunter" are: Scott Charlton, Pat Laboyko, Rucht Lilavivat, Henry Lopez, M. Sean Molley, Brian Schoner, Robert J. Schwalb, Robert Vaughn, and Eric Wiener. Ghetto Freaks is a 1970 American independent hippie exploitation film directed by Robert J. Emery and written by John Pappas and Robert J. Emery.  It was filmed entirely on location in Cleveland, Ohio, and originally opened in Cleveland under the title Sign of Aquarius, alternately titled Love Commune. Robert J. Cabral Station, otherwise known as the Stockton – Downtown Station or Stockton ACE Station, is a railway station in Stockton, California.  The historic station building was built by the Southern Pacific Railroad and was named in 2003 after the late Robert J. Cabral, a San Joaquin County supervisor instrumental in the creation of the Altamont Corridor Express (ACE), originally Altamont Commuter Express. Exemplars of Evil is a supplement to the 3.5 edition of the "Dungeons & Dragons" role-playing game written by Robert J. Schwalb. Robert J. Schwalb is a writer in the role-playing game industry, and has worked as a game designer and developer for such games as "Dungeons & Dragons", "A Song of Ice and Fire Roleplaying", "Warhammer Fantasy Roleplay", and many other RPG supplements. Shadow of the Demon Lord is a horror fantasy tabletop role-playing game (RPG) created by Robert J. Schwalb.  It was funded through a Kickstarter campaign launched on March 12, 2015. Robert J. O'Donnell (1891–1959) was an American businessman and philanthropist who, with partner Karl Hoblitzelle, managed the Interstate Theater chain as vice president and general manager from 1925 until his death from lung cancer in 1959.  O’Donnell is best known for helping facilitate the growth of the "Majestic" chain of theaters during the "classical Hollywood narrative" and later for his philanthropic work both with the Variety Club Children’s Charity and the Robert J. O'Donnell Film Series Endowment Fund for the Dallas Museum of Fine Arts. Terror from the Year 5000 (a.k.a. Cage of Doom in the UK) is a 1958 independently made American black-and-white science fiction film, produced by Robert J. Gurney Jr., Samuel Z. Arkoff, James H. Nicholson, and Gene Searchinger, directed by Robert J. Gurney Jr., that stars Ward Costello, Joyce Holden, John Stratton, Salome Jens, and Fred Herrick.  The screenplay is based (uncredited) on the short story "Bottle Baby" by print/TV/film writer Henry Slesar, that was published in the science fiction magazine "Fantastic" (April 1957).  American International Pictures released the film on a double bill with either "The Screaming Skull" or "The Brain Eaters". Uphill Climb is a 1987 short story written by Canadian Science Fiction Author Robert J. Sawyer.  It is notable for being the first print appearance of the Quintaglios, a species of sentient dwarf tyrannosaurs, which would later star in his critically acclaimed Quintaglio Ascension Trilogy.  It was later reprinted in "Iterations", an anthology of short stories written by Robert J. Sawyer. A Song of Ice and Fire Roleplaying is a role-playing game published by Green Ronin Publishing in 2009.
Answer: role-playing game