I don't own this, but have been working on a mix of games without manuals, and came across a screenshot at http://www.wadjeteyegames.com/forum/index.php?topic=1302.0 that shows a .txt file called "Gemini Rue Manual." The thread is about a collector's edition of the game, but would someone who owns the GOG version please check and see it such a file is there? Many, many thanks!

The mix: http://www.gog.com/mix/gog_games_without_manuals_where_to_find_them

Thanks; I appreciate you looking.
EDIT: I've fired off an email to them asking about the file, and (if it exists) if it would be possible to get here.

You're welcome. Nice project you're on. Keep up the good work, I'm sure it's appreciated by others, too.

Thanks for the kind words! I started it because I kept forgetting which GOG games I owned that didn't have manuals...every time I reinstalled, I'd have to go on a hunt. Hopefully, others will find it useful as well.

I have an official reply:
"Hi John. We never wrote a manual ourselves. I can only assume that yes, it was probably written by the people who made the collector's edition (which was sold in a physical box in the UK). We didn't have anything to do with the making of it.

But we designed the game to be played without a manual. The in-game tutorials pretty much cover everything. Nobody has ever been confused about the mechanics yet!

-Dave"

Thanks again for the help!