ZX Spectrum
Amstrad CPC (Roland on the Ropes)
Commodore 64
Other ports and remakes
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1985, Texas Instruments TI-99/4A, Freddy by Arnd Russmann (Saurussoft).
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1997, Windows, Fred Remake by Sarasoft.
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2002, Windows, Fred PC by PeeJay.
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2002, Windows, Fred: The Remake by FZero Software
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2018, JS/HTML5, Uprk.cz by Lubomír “Bob” Březina.
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2018, Python, Roland On The Ropes - Remake by Fernando Paniagua.
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2020, Windows, Pharao Reloaded by Nethelpers Games.
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2023, Android, Fred Android Remake by Juan Luis Perea.
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2024, Commodore 64, Kazik in the Underworld of Tema +3D by Laxity, Onslaught.