Are there any achievements in GOG / Galaxy for Age of Decadence or is it unique to another platform (ste*m)? I bought the game here and really hope that Achievements work here too - cannot find them for the time being though.

Thank you in advance!

I would really like to see this implemented too

Yes, I would very much like to see these too.
This is one of the few games I actually *miss* having achievements for.