Amstrad CPC
Licensed to, and published by, Ariolasoft in the United Kingdom in 1986.
Apple II
The original version designed and programmed by Jordan Mechner in 1984.
Atari 400/800/XL/XE
Converted for play on the Atari 8-bit computer systems by Robert Cook in 1985. Licensed to Atari and released in cartridge format as part of the XE Game System series (but playable on any Atari XE computer) in 1988.
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screen
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400/800 box
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XE Game System box
Atari 7800
Developed and published by Atari in 1987. Generally regarded as the worst conversion made.
Atari ST
Converted for play on the ST by Andromeda Software and released in the United Kingdom in 1988. Potentially the best looking conversion.
Commodore 64
Converted and published for the C64 in 1986. Released in both disk format and cassette tape format.
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screen
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Disk box
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Tape packaging
Famicom
Licensed to and ported by Soft Pro in 1985. One of the earliest games developed by an American and ported to a Japanese system.
IBM PC
Converted and published for the MS-DOS operating system in 1986.