On the main campaign they can provide you a GOG key if you contact them. I don't know about other campaign however.
Here's today update https://www.kickstarter.com/projects/stoic/the-banner-saga/posts/1561604

What a bummer. Developer going regional pricing, and lying to the backers, not a good sign.
About the latter, to better explain, they originally claimed that there was not plan to release a drm-free version and after the pressure of the backer they stated that it was because their game was pirated a lot after being released on GOG.
Now they release it here, drm-free, and clearly they had it planned because you cannot do that in a couple of weeks.

Another bummer. Backers get the normal version but the soundtrack is overly priced. 9$ for an mp3 only soundtrack is really high. For the fist game they gave a bandcamp code so I guess it doesn't change much that they are trying to rip off people on GOG.
The Banner Saga soundtrack: https://austinwintory.bandcamp.com/album/the-banner-saga
The Banner Saga 2 soundtrack: https://austinwintory.bandcamp.com/album/the-banner-saga-2

i have a steam account mostly casualgames (small but nice games)
these games cant be compared to real gameslike we have here, but the casualgames are fun nontheless.

As far as i know these achievemnest will be put online at steam. meaning you ned a connction to put them there, i thought we at GoG the more old fashioned and 'grown up' who played since the 286 pc... dont need achievenments, or dumb tradingcards and more stuff like that.
Problem is that if you want to add some achievenmenst or similar stuff vhances might be the game wont work: i have order of the trone and that seems to be trying to connect to achievements in the galaxyclient, at least thats what the error claims. I downlaoded the client but the achievenments was greyed out (maybe not incorporated)
Anyway, the point is : if you have games that arent multiplayer online or mmo, i believen extras like hof and achievenments and other silly things arent needed in a good game, to me these seem to fit more to younger kids, up to 15 or 16.

Why in heavens name should we want to show off the 1 billion coins collected? or show a nice cup with your login name next to a png or animgif in the HOF on a server like steam?
Sorry but i dont get that so thats why i dont fancy nor favor extra stuff in any game: games are games if you want achievements or so the buy casualgames on steam or play free online casual games at steam and your achivenments will be saved on the big cloud for anyone to be seen.

Local achievements on your own pc is also redundant cause we will be the only ones to see these.
Hih scores aswell: as long as its not online in the big cloud and its not on a machine in a 711 (arcade games in old fashioned box with big score list) it has no use.
Finally: i dont feel the urge or need to show my gazillion scores to show off how godly i game :D
I can understand that young kids might need that, but grownups who need confirmation by having achievenments or highscores online? nah thats nothing for me.
I am old fashioned gamer local on my pc , maybe a lan with family but thats it, no mass online games.

Oh, I thought you were talking about the second one since you also mentioned the regional pricing next to the lack of the Linux build.

And I still haven't played the first one. Maybe when the next game (assuming "Chapter 3" is still getting made) comes out I'll jump right in.

I'm talking about both - given the lack of a Linux build for the first game, I don't expect there to be one for the second one either. And there should be. For both. And not soon™.

Very fast response to my request for a gog key for TBS2. Impressive, considering how they were handling the drm free scenario upto now. However the damage is already done again.

Since Linux is to a large part built by the kinds of you and me -people sitting in their bedrooms and hacking away- rather than by a single profit-driven company (well, there are also a number of profit-driven companies contributing code and/or building their own distributions, such as Intel, AMD, Red Hat, Canonical, Oracle, Google, Facebook, Amazon, and -yes- Microsoft), there isn't really much of a home to call.

Also, everyone is in their full right to inspect and modify the code, and build their own release, should they find a piece that actually does call somewhere. Only rule being that if you decide to distribute your modified build, you must also make your modified code available.

There go my plans for the weekend. Insta-bought.

The "We're not releasing on GOG" thing encouraged me to spend my money on another title instead.

Now that it's here I will be buying it, but it's on my wishlist rather than in my library.

okay that sounds fair enough, thanks for the reply.

Ha, funny that they changed their tune. Guess the copies that showed up on the torrent sites minutes after the steam release made them realize that DRM doesn't stop piracy?

Yay, the story continues! Great it found its way to GOG despite all rumors.

Wishlisted for now. I don't give a rat's ass about why the release delay was a thing... Hell, I still have to play through part 1! Good ole backloggery. =/