ZX Spectrum

• World of Spectrum

• ZXArt

• Spectrum Computing

Amstrad CPC (Roland on the Ropes)

• CPCWiki

• Classic Reload

Commodore 64

• Computer Emuzone

• Lemon 64

Other ports and remakes

• 1985, Texas Instruments TI-99/4A, Freddy by Arnd Russmann (Saurussoft).

• 1997, Windows, Fred Remake by Sarasoft.

• 2002, Windows, Fred PC by PeeJay.

• 2002, Windows, Fred: The Remake by FZero Software

• 2018, JS/HTML5, Uprk.cz by Lubomír “Bob” Březina.

• 2018, Python, Roland On The Ropes - Remake by Fernando Paniagua.

• 2020, Windows, Pharao Reloaded by Nethelpers Games.

• 2023, Android, Fred Android Remake by Juan Luis Perea.

• 2024, Commodore 64, Kazik in the Underworld of Tema +3D by Laxity, Onslaught.