I mentioned this before, but I just made a post in the Monster Train forum for how to unlock the online-play-required-to-unlock alternate card art without playing online: https://www.gog.com/forum/monster_train/unlocking_card_frames

I had previously stated (and still agree) that it doesn't quite count for this list since it's trivial to unlock manually by editing a plaintext config file in lieu unlocking through online play.

Lifthrasil, It's probably worth linking to this thread as GOG's doubling-down on "DRM is OK sometimes", even though they pretend to say the opposite.
https://www.gog.com/forum/general/bgog_2022_update_2b_our_commitment_to_drmfree_gaming_8cb8b

Good idea

Darwinia
for inclusion, see here.

They did remaster the game to work on newer hardware better, and if you have older hardware, you need to use Galaxy to get the legacy version. If you use GNU/Linux, go straight to warez. What an ownership of "bought" games!

That is unfortunate. It sounds like an unintentional side effect, but until they fix it, I'll include a comment in the list. Since it is a de facto enforcement of Galaxy for owners of older machines. But it isn't really DRM, since the game doesn't enforce Galaxy, once it is installed, if I understand correctly. It's just that non-Galaxy user don't get a working game to begin with. So it's an enforcement of the client for the download, not the execution of the game.

Thanks for the notice.

That statement is a non-sequitur.

"It isn't really DRM" is not a conclusion that logically follows from the premise "since the game doesn't enforce Galaxy, once it is installed."

If the game enforces Galaxy to be installed in the first place, then it's DRM.

Indeed. Needing a client to download is as much DRM as thousands of Steam titles and I gather quite a number of Epic titles have, which is to say very much so.

Well, as I said, I included it in the list. Yes, the access to the installers is DRM-ed. But once you have the installer (say on a backup disk) it's not DRM-ed. So it is a matter of where you see the DRM. It's an age-old discussion whether, for example, the 'DRM-free' games on Steam are really DRM-free, since they need (by design, even if it can be circumvented) the Steam client. Same here, I don't like the neglect that GOG shows towards the offline installers. I don't like that they enforce their client, DRM-ing the access to the games one bought. But everyone is free whether this is a form of DRM to avoid or not. (People with new PCs, for example, aren't affected so far according to what I have been told. They can use the offline installers that are provided)

You forgot than Steam client not only does DRM validation when downloading, but also when starting games.

Digital distribution, unless free-for-all, is a form of DRM as well, since you need to authenticate to be able to download anything. See, some users have download rights, others don't.

However, having to use a suspicious proprietary client is still much eviler than using a web browser (though I can't say web browsers are good these days) or GOG downloader.

I think this needs to be looked at in slightly more detail.

If I understand correctly, an original version of this game has been replaced with a newer modified version which may have legacy issues.

If access to the originally released version is restricted to only those that use Galaxy then I believe that this is wholeheartedly DRM in action and should be on the list (which I appreciate has already happened).

I would go slightly further and suggest this example if true may need to be specifically highlighted and users reminded that gog can at any time make changes to your games library that may adversely affect the user and that users need to seriously consider backing up now if they have not done so already (and by that I mean keeping more than one version backed up, so it is possible to revert adverse changes).

web.archive.org/web/20211015211725/https://www.gog.com/game/darwinia - The old version (non-hyperlink because it breaks)
The current version

See increased system requirements. I don't have this game in my library so I can't help further aside finding some publicly available data/people I can ask.

Since there is no Galaxy for GNU/Linux, I assume the version for it is gone and is now only available on warez file sharing now.

Note their other game had one file disappearing for good already.

OK. GOG seems to have made the legacy version of Darwinia available in the extras for direct download again. Can someone who owns the game check whether this is true and whether the legacy version is DRM-free?

Darwinia - Legacy Version is available direct under the Darwinia - 10000th Anniversary Edition.
I could run it without problems...so DRM-Free (if there isn't a check later on).

Great. Thank you!

GOG only restock Windows and macOS version.
The legacy Linux version is not available.