GH-77: Not sure if this attachment will work (and it is in German), but this image was sent by GOG via mail on 30/05 and clearly stated 06/06 5 p.m. So I did not not feel any rush to get it and wanted to download it on the weekend... was not aware that the manual was only included there until yesterday when it was too late. And it still does not make sense: If there is a manual, then this should not be a "goodie", bonus or later maybe even a paid content, but part of the release, especially if other platforms include it.
Of course, this does not change the fact, that the game itself is brilliant and the manual is not necessarily needed to finish or enjoy the game. It´s more about treating customers differently even though they bought the same product for the same price (or even more, considering the availability of cheaper keys for the Steam platform).
You should see the manal though - it is a goodie!
47 MB and it is artwork presented as a manual for TriOptimum employees and stuff more than an actual player guide.
EG :"TriOptimum Employee Non-Disclosure Agreement" / "Confidiential Information" / "Breach of Agreement" and procedures / etc.
There is a single page of actual control information for the player and some pages are listing items and weapons in the game but thats like 5% of the whole content...
Definitively not required to play the game.