mrkgnao: I'm still curious to understand where your line in the sand lies.
Imagine a game that has a full long single-player campaign that is completely available offline and which you played and thoroughly enjoyed. The kind of campaign you would gladly call "good enough". The game also asks you to register your email address online, but you decide not to. All good so far.
Unknown to you, so you don't know what you're "missing", the devs decide to reward anyone who registered their email address by unlocking a second full single-player campaign, just as good as and just as long as the first one, also fully playable offline, but only after you go online and register your email address.
Assuming you now learn about the second campaign's existence. Would you consider the second campaign to be multi-player? Would you call it just a reward for registering your email address? Would you consider it non-existent? Would you consider it single-player content locked behind an arbitrary online-only wall? Do you think such a game should be on GOG?
If I have to play the game online to get access to the second campaign, I would consider it "multi player reward", yes.
My line in the sand is really quite simple:
What parts of the game still work, when mankind is nuked, I'm the sole survivor, and somehow have still power, my PC, and my backup offline installers. If a game - even if it has additional stuff I can't get access to any more because everyone else is dead, including all activation/authentication/content/community servers - is still worth it, I'll get it.
Because I simply care a lot about game preservation, I see them as art, not as some throwaway entertainment product (even if many are - but it's not my position to judge). People in a hundred years or two should be able to play our games (probably through emulation) without being locked out from them by DRM, or even worse (because it can't be cracked) they were something like stream-only.
Coming back to your example: If I could "register my email address" and then get an offline patch or installer, that unlocks or adds the second campaign, and once I have it, it's mine to keep, I'd probably go for it. Sound like free DLC, and throwaway email addresses are a thing. If I somehow had to do that every time I re-install or play the game I'd call it DRM and stay away, because DRM is about ownership. If I don't own the game (or at least the part of the game I care about, which is "the game minus MP" most of the time), I don't want it.
real.geizterfahr: Landing on a space station and reloading the game to respawn something "if the devs didn't change this in an update" could either be intended game design (which would be another weird decision), or exploiting an oversight of the devs (or a bug). Now we're entering a territory where we first have to decide if it's an exploit or stupid game design, to then define whether it's DRM due to the dev's stupidity, or DRM-free. Doesn't make the discussion less weird.
No, I meant the other post further above :-)
Because I was under the wrong impression that quicksilver can only be earned in MP, turning all quicksilver store items into MP rewards. Which is - IMO - fine, if all people know what they're getting into, and that offline players can't have them. And then it would make sense to hide those items for offline players, since they couldn't earn them anyway.
TerriblePurpose corrected me, you can indeed get quicksilver playing offline (the exploit is only to speed it up). If that is the case, hiding the quicksilver shop items until you go online is indeed very shabby, because there is no reason for it at all.
You can go online once, and never again, and still get all those items - they lose their function as MP rewards.