See here:
https://www.ign.com/articles/spec-ops-the-line-will-no-longer-be-available-in-online-stores-2k-blames-expiring-partnerships

or here:
https://www.polygon.com/24056224/2k-spec-ops-the-line-digital-storefront-removal
https://www.theverge.com/2024/1/30/24055807/spec-ops-the-line-delisting-licensing-2k

And now the game is gone on GOG too. :(

Who own the GoG version here ? ;-)

Luckily i do own it before it got delisted.

Ditto.
Also "own" it on Steam too.

And with this move people who didn't have it on physical disc or on digital will pirate it just to see what all the buzz was about. 2K can't complain about that one.

If you missed out on the chance to buy it but would do so if the game returned, consider voting:

https://www.gog.com/wishlist/games/spec_ops_the_line_back_on_gog

I see that there are not as many votes and comments in the wishlist section for some reason. As I understand maybe not all gamers know about this section or maybe because they do not believe that their vote can do something and GOG will count it at all. I cannot confirm or deny none of that I do not know anyone from the GOG team, so I cannot say if is there any reason to make something in there/ But what I know almost 100% that is you do not need a lot of time to vote +1 for the game you want to see in the store and even leave a comment, it is about a couple of minutes. So maybe you can do that and maybe your deeds will have a positive result.

it got delisted and votes will not bring that back guys

Why do you think so? I do understand, that GOG is not an almighty organization and cannot do all they want (maybe it is even a plus that GOG does not have complete power, so it cannot start a small "victorious" war like some already did). Maybe it is time for us, gamers to take matters into our own hands and start fighting for cool games that have been removed from the store. We can discuss what we can do to return Spec Ops The Line back to the store. For example, we can start messaging Developers, and Publisher about how everyone will benefit if the game is back. Game Stores (yes, we have not only a GOG store), Developers, Publisher will make money from the sales and gamers will buy the game and will play it. All sides will be satisfied.

Makes no sense - especially because the themes portrayed in SpecOpsTheLine are more relevant now than ever.

True, and one doesn't have to put them on show, either. If one get's a hard on how American genocidal maniacs violate Haager landwar regulations, look no further than Ukraine. You should join the landing party down there and take a rifle for real and fight. War is not a video game. And this game didn't do anyone a favour showing the American war crimes. It put them on show. And that is a no go even in the entertainment industry. All Americans portrait in this game would be sentenced to death for their war crimes, if that story would be real.

Licensing issues were probably the only thing that could remove this shit from the web.
Thank you GOG, for not supporting war crimes and war criminals in entertainment or real life.

From what I've read, the game is more about being anti-war game than anti war in general. Also, what's wrong with supporting Ukraine, doesn't GOG do that in fact?

what's wrong with not wanting to accept Mainstream Ukraine Narrative? I haven't been responsible for that and I have my own problems. Ukraine is not on my priority list. Sorry pal!