Mori_Yuki: You are trying to turn the chicken into the egg here. GOG is the party working on and
offering Galaxy client/server code to developers not the other way around. Even CDPR made
good use of it for distribution of their goodies for CP2077. So GOG got a say in this and are the party whose responsible for this situation. Some developers offer multiplayer without forcing GOG users to use the client, you may still need an account (either Slitherine or Paradox) but ultimately you get to enjoy the full package without strings attached.
paladin181: GOG created Galaxy because there was demand for it. Perhaps they missed out on some publishers' releases because there was no framework for multiplayer. When you think of it like that, sure GOG is offering this service because someone big and powerful asked them to in order to put their games here. I can't verify that, and it may be that CDP/CDPR are the big and powerful ones who said "you will get more big name releases if you have an easily accessible multiplayer back end" and that came with attaching it to an easily accessible front end as well.
People saying GOG has agency because they can refuse releases with Multiplayer, why would they? Should they go out of business for principle? Would it make you happy that they rejected several high profile games for not conforming to GOG's requirements if it meant they had to lay off several workers? Some people think these decisions are made in a vacuum, and honestly, I hope you "die on the hill for my principles!!!" folk aren't in charge of anyone in a business yourselves.
That's all well and fine. For me all that really counts is whether I can use and access the software and MP-features or bonus content without said client. I paid for it accordingly so this is what I should be able to expect. Whether that's Titan Quest, which got the client-environment, server browser, built in, yet it's not possible anymore to connect to their servers without having GOG and an account to be able to access it, I don't get what I paid for. Similarily daily challenges which should be downloadable and accessible, which they are if the game was bought directly from the publisher (Desktop Dungeons) or the aforementioned OTC, how in the world and only because it's been bought here should there be any need for that to access it via a client? How was it possible before, I ask you? How is it still possible with some developers/publisher and not others, including but not exclusive CDPR?
All I really don't care is about the client itself whoever wishes to use it shall do so. There are achievements and I can see how this is hardly possible w/o the client. That
is on GOG and with this I withdraw lest this topic gets closed for derailing it further.