Thanks to contributor Chris Hester, who flagged up an old piece that he wrote possibly for his magazine Adventure Coder. Pyramids Of The Sun was the follow-up to Castle Blackstar, and was set for release in October 1984.
Chris’ feature found a snipped from January 1985 where the programmer Mark Sheppard sheds light on the game, confirming it is set in Egypt (and not in space!) and makes a lot of use of Egyptian mythology. It would be only second to the legendary Infocom games in its ability to understand English inputs.
The game never saw release on any platform by the looks of it, so was it cancelled early on or did the developers just move onto pastures new?
Contributions: Chris Hester