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Based on the Cold War spy thriller of the same name by Frederick Forsyth.
United Kingdom
The Fourth Protocol
June 20, 1985
The Fourth Protocol was released on June 20, 1985.
The Fourth Protocol is available on DOS, Amstrad PCW, Commodore C64/128/MAX, ZX Spectrum, Amstrad CPC.
No — The Fourth Protocol is a single-player game.
The Fourth Protocol was developed by The Electronic Pencil Co. Ltd. and published by arioloasoft.