The Fourth Protocol

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First release: Jun 20, 1985
Developer: The Electronic Pencil Co. Ltd.
Publisher: arioloasoft, Hutchinson Computer Publishing, Century Communications
Genres: Adventure, Strategy · Mystery
Platforms: DOS, Commodore C64/128/MAX, Amstrad CPC, ZX Spectrum, Amstrad PCW

Based on the Cold War spy thriller of the same name by Frederick Forsyth.

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Release dates

ZX Spectrum: Jun 20, 1985
Commodore C64/128/MAX: Aug 01, 1985
Amstrad CPC: 1986

All 5 release dates

Amstrad CPC: 1986
DOS: 1987
Amstrad PCW: 1987

Game modes

Single player

Perspective

Bird view / Isometric

External links

Twitch

Keywords

cold war, spy, detective, interactive fiction, espionage

… All 8

, interactive fiction, espionage, based on - book, licensed game, cga graphics

How it plays Media Community Behind the game

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Languages

Englishinterface

IGDB · recorded 7 Oct 2026

Language data: IGDB · recorded 7 Oct 2026

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The Fourth Protocol

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