Yeah I'm really disappointed about this. I've never had a GOG game give me so many issues for not having Galaxy installed.

Well first despite what you said in your title the games doesn't requires to have Gog Galaxy installed, I just installed it on a computer without Galaxy and it started and was working properly.

Yes it does stop during loading while displaying "Loading Gog Galaxy" for around 10 secondes, now the question is what does it do while displaying, is it really trying to connect to Galaxy and have a 10 seconds timeout, or does the game do something else and just didn't update it's splash screen.

Concerning Gog support answer, it might be a sloppy implementation but it's not really a bug, the game works offline, works without Galaxy (unlike the issue that happened with Escapist or more recently with Deus Ex), it just might take 10 seconds longer to load than it should.

I will test later to see if with Galaxy it does start faster or if also wait for 10 sec before finishing loading.

https://www.gog.com/forum/general/gog_galaxy_required_in_certain_games
I had made a thread about this previously, you will get the response: “have you tried out optional client galaxy”

Sounds like the OP wasn't completely honest... because he wanted to make a point. A game that "hangs" isn't the same as a game that needs 10 seconds longer to load because some annoying / unneeded "galaxy check".

I agree, ideally that should be solved. But I don't appreciate the dishonest drama.

Yeah, the whole thing is completely ridiculous. There's no reason for any GOG game to a "Galaxy Check." I wish more people would give this attention since we were told Galaxy was not mandatory.

*dozens

What is "a very long time"? 3 seconds? 30 seconds? 30 minutes? 30 hours?
Is it mandatory in this case?

Ok it may feel like the longest 10 seconds of your life, staring at a screen saying "Galaxy", but I think I will survive.

And no I am not using Galaxy, but I'd rather concentrate on real issues, like how the "forum replies" search doesn't work, or some GOG games have missing content or updates compared to the Steam versions. Or that Skyrim is still missing from GOG.

3000 years! (get with the program, this is about DRAMA! :-P )

Many Galaxy users have also said that they do care about and use the offline installers as well.

The wait on my computer was 30 seconds to 1 minute with that "Loading GOG Galaxy Login" screen. So it wasn't "10 seconds" like some people have said. And I still think having the title of my post changed was unnecessary.

In Reassembly, users of GOG Galaxy get a different experience than those not using GOG Galaxy. People that do not want to use GOG Galaxy get a penalty "wait" while the game looks for software that's not even on the computer. I was hoping GOG could fix the game so it wouldn't have to do the "Galaxy check" to play a singleplayer game.

If it really is closer to a minute, then yes I start regarding it as problematic.

But since I don't have the game, I can't test it myself which it is in my case, the 10 seconds that someone else reported, or your 30-60 seconds. That's quite a big gap there, if it is all just for waiting for a Galaxy-client search to time out.
(That kind of difference would sound more like differences in loading times, like that you are using a slow HDD for the game while the 10 seconds guy has SSD.)

I tried on my secondary computer (my previous 4-5 years old HTPC)

Intel Core i5 4200M @ 2.50GHz
8GB DDR3 @ 799
1024MB ATI AMD Radeon R9 M200X Series
256GB Samsung SSD 850 PRO

Not exactly a gaming computer.

And starting the game multiple times it takes between 10 and 14 seconds

I tried on my main computer

AMD Ryzen 9 3900X
64GB DDR4 @ 3600
3071MB NVIDIA GeForce RTX 2080 Ti
2TB Samsung SSD 970 Evo Plus

And I end up with roughly the same timing between 11 and 13 seconds.

So it doesn't seem that the CPU really impact, I strongly suspect it's a 10 seconds timeout or something like that.

If you have Galaxy running then you don't have any delay (on my main PC, I haven't tried on the secondary one)

Like I said it seems like a sloppy implementation, but IMHO nothing to lose sleep over.

far as i remember the game isnt very reliant on the HDD - of course, thats the steam version, but still

I just wish GOG could get a new binary of the game that doesn't do that "Galaxy check."