I added Old World to my cart, and I found that Offworld Trading Company is a game that treat GOG customers as second class citizens.The GOG version is missing three DLCs, and the ultimate edition. instantnobuy sadface.jpg
Note: OTC was published
by Stardock, who surprised us they put it here at all in the first place. They're a very pro-DRM, billions of DLC publisher.
Old World is from a new publisher
(Hooded Horse) that Mohawk went to for their newer game. Hooded Horse has so far been somewhat active on GOG's forums and definitely looks like it'll be a better situation.
Mohawk is the designers/makers. They're small (but not tiny) and are working with publishers for distribution. Publishers are often the kink in these kinds of decisions.