The PC and Atari ST versions were produced by Neil Shipman using TADS. They contain extra text and puzzles. A review of the game in Adventure Probe (Volume 7 issue 1) states that the Amiga version of the game is slightly different to this two ports.
The Spectrum version was converted by Larry Horsfield using the PAW.
A C64 version of this game, by The Guild, was planned and mentioned in Commodore Force #1 (January 1993), but it was never released.
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