The Amstrad CPM conversion was produced and distributed by The Adventure Workshop.
A level of the Spectre of Castle Coris was the UK Adventurer's Convention Megapoints Competition game for the 1991 convention.
The 2015 version was produced using ADRIFT 5 and is available both as a Windows executable and a blorb-file which is playable with the ADRIFT 5 Runner. The game can also be played online.
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