OK, so at certain points in the game you can unlock Achievments - Icon pops-up, fanfare and all that..
For the life of me though I can't find out where to view the unlocked Achievments?

Can anyone help me, or I should assume they're just a remnant from the Steam version or something??

Well looking through the games folder, there are only 4 .png images which have ACHIEVE at the beginning. Three are endings, and one seems to involve finding 0CT0.

Oh, sorry, you said 'view' right? It also looked like there should be an option on the main menu, possibly after finishing the game at least once? Have you finished it and that option isn't there?

Thanks for trying to help. Yeah, I finished the game - but no Achievement screen. It's strange that there were only 4 icons - there were a bunch of other Achievements on Steam, but I guess that only supports the theory that they were meant to be cut from GOG release, and for whatever reason some of them remained.

Thanks for the info.