Comment by CopperWing
9 hours ago
As far as I remember, the only games which optionally need Galaxy running are those will online multiplayer, and only if you want to play online. This is because the original developers shutdown their own servers for matchmaking or originally used Steam servers for that. GOG servers are only replacing those.
There are also a handful of games which put some additional purely cosmetic content behind an online check. That could be the start of a slippery slope, which people are justly upset about, but they then do an injustice to their cause by generalizing from those cases.
Which ones? Honest question. I only remember games for which GOG apologizes in their store page for missing cosmetics or extra features because originally tied to online services (e.g. the Mafia or Yakuza games), or ones in which they are unlocked by default for the same reason (e.g. Dragon Age Origins).
https://www.gog.com/forum/general/drm_on_gog_list_of_singlep... has a full list.
It's not a slippery slope but already full blown DRM plain and simple. Both online functionality limited to GOG-run servers and checks for cosmetic content.