The Fourth Protocol

The Fourth Protocol is an interactive fiction video game based on Frederick Forsyth's 1984 spy novel The Fourth Protocol. The game was released in 1985 by Hutchinson Computer Publishing, a subsidiary of the publishing house Hutchinson. It was designed by John Lambshead and Gordon Paterson, and programmed by Ben Notarianni, Rupert Bowater and Paul Norris of the Electronic Pencil Company. The game was released for the ZX Spectrum in July 1985, with the Commodore 64 release following one month later, and the Amstrad CPC conversion in 1986.