Posted April 18, 2021
Yes, version 1.0.50a was the missing hotfix. The achievements have been fixed as well. It's now on par with Steam except for the missing comic.
Hustlefan: In addition to that the GOG version is missing a very important Hotfix which was released on December 31st on Steam.
omega64: Was this version 1.0.50a? I'm not sure if the achievements have been fixed but I've asked the person that maintains that list as it's not on there.