fyi, the offline installer link for the game in the library gives a 404 right now. I'll try again later.

The link is still dead (404).

I sent a support request.

Cheers, noticed that yesterday, too.
Might even be more to it than just a link leading to nowhere, since the offline installer also has been downgraded from v1.3.2 to 1.2.0 again, for some reason.

And here I was hoping they had gotten around to updating the game here (some complaints about that in the games' reviews), but had encountered some temporary problems.

Might still be the case hopefully. I guess we'll see what happens.

fyi, they processed my ticket and the game downloads now.

There is a 1.2.0 installer and it seems like a downgrade from 1.3.2, but based on the fact that there is also a "Patch (1.1.3.2 to 1.2.0)" patch, I think the previous 1.3.2 installer was just mislabelled (it must have been 1.1.3.2 and 1.2.0 is in fact an upgrade).

The fact that the installer used to be 274 MB and is now 507 MB also supports that theory (looks like they added content).

Thanks for reporting back, much appreciated.

No, it wasn't mislabeled. 1.3.2 was an update which had been released on GOG last year and added some important stuff to the game. (Link not working correctly - just go back one page and look for post 26183) I guess the reason for the downgrade (which happened on Galaxy Months ago btw.) was a file called "libgog.dylib" which prevented the game from starting on Windows. Deleting that (Mac related) file solved the issue. I don't know, why the devs didn't re-release a fixed installer. xD

Since I still have version 1.3.2 installed, here's a screenshot from the main menu, which confirms the version number.

That's sad.

Anyways, I couldn't find the developer, but I tracked down the publisher and sent them an email.

Thanks!
Hopefully they'll give you an answer. I joined their Discord some time ago but cannot post my questions since they activated Discord's highest security level where a phone number verification is necessary and I simply don't want Discord to have my cell phone number. :(