It really was about time. Better late than never ... still, thank you!

Does Klei have a new game coming out soon where they're finally trying to do us right on this?

Thank you, GOG!

Thanks for the freebie.
I'll add my voice to those requesting Oxygen not Included. With new content around the corner, it would be a good oportunity to release it here.

Thanks for the free upgrade - feels like it's almost Christmas :)

Any other changes? "Improved" graphics is nice, but not something I personally care about.

Nice! I played the original version and it's AWESOME! Super fluid, lots of fun options - just a great game overall.

Yes this! I'm a huge Klei fan and hope they get back to supporting GoG. Oxygen Not Included looked a little like work to me, but Griftlands seemed right up my alley.

I did not hit her!
It's not true, it's bullshit!
I did not hit her
I DID NAAAAAHT!

...

Oh hi, Mark of the Ninja: Remastered

The major difference is that Mark of the Ninja: Remastered versions actually exists for Mac and Linux, and are available on Steam. There are currently no Mac/Linux versions of the Observer remaster, so it's understandable that they're not on GOG. Not really any excuse in this case, though. Possibly they're just delayed.

The same for now

Mac and Linux versions are missing. Considering this is Klei, the same devs which left Don't Starve outdated for ages on GOG (and finally updated it), I am not surprised.

Needless to say, another disappointment.

I am not happy with the service of GOG for Linux (or better: for non-Windows users in general).
As I am on Linux and would not use Wine/Proton I was shocked after being exited reading about the 4k version just to see that it is Windows only.
Additionally, there is no info from GOG about Linux and macOS coming later or would be lacking in future.
As Windows-only got very common on GOG while Steam has a Linux and macOS version, GOG seems no longer to care for other platforms.
I asked the support for all these problems - even games which can not start due to silly problems in the start script or wrong right flags - and was said it was sent to the right teams at GOG - but I have not heard anything about it.
And as I bought the game to play it under Linux - unfortunately too late to get the special edition - I feel betrayed to see that the original game having three ports was replaced by a Windows only version without any explanation or warning.
I sent a mail to Klei and asked about a Linux port coming soon to GOG, too ... just curious if any answer will come.
After such a long time to make this version available in GOG this result is really not understandable.
But it would at least be the duty of GOG to give this information.
In the game's forum this question was already risen for Linux and macOS as separated threads ... it's up to the gamers to do the work.
This should be changed - or GOG has to clearly state that Windows is there business and other ports are just a nice to have but totally in the controls of developers/publishers to provide them to GOG.

F I N A L L Y .

Good god did they take their time. It's not as if releasing a DRM-free version is hard.

To Observer I saw that it would arrive in Linux Native version.
But "Mark of the Ninja: Remastered" is from 2018!