Shadow of the Comet: The Official Strategy Guide (Prima Publishing, 1994; re-released by the author, 2019) was written by Steve Schwartz.

He decided to test this theory by observing the comet from Illsmouth, but something unexpected happened and he went insane, spending the rest of his life in a lunatic asylum.

Parker, learning of the 1834 incident and reading over Boleskine's papers, wishes to succeed where his predecessor failed.

Computer Gaming World praised Shadow of the Comet's plot, puzzles, writing, and "rather naughty, dark Gallic sense of humor" but criticized the lack of mouse support, calling object manipulation and puzzle solving without one "painful".

The magazine concluded that the game "is a high quality graphic adventure that offers nothing particularly new as far as technological advances and is, in some ways, a touch old-fashioned.