OK, I am confused. When I still go to my library this is still flagged as "Not yet available".

I know that Dreamfall Chapters Season Pass has been fixed and works with Auto-Updater.
I had to do the gog.com/user/refresh on it to get it to show up on Galaxy properly.

Is TBoUT2 still not fixed?

It does not appear to be. I have it up and running on my PC but I did it manually before Galaxy was ready to go.

I do not install my games on the C:/ drive but on an internal 1tb Hard Drive for that purpose. I tried "Importing Folder" but that did not apparently do anything.

TX

EDIT: A little late but it was fixed as of Oct 2015. The "Not yet Available" is now gone.

I installed it via Galaxy. Just back up your save games and reinstall via Galaxy. See if that fixes the issue.

If I go into Galaxy, I can not install the game as it says it is "incompatible". Therefore I can NOT get it to show up in the game listing on the left side. I can not "import" a folder either. I tried that refresh trick from one of the posts but that does absolutely nothing. Yet all the rest of my games are OK and right now I have 11 of them installed into the Galaxy interface. So I don't see how you managed to do that. Unless there is some trick that I am not aware of.

*BUMP* Just purchased the three game BoUT bundle, the first two games installed through Galaxy just fine, but I'm having the exact same issue with BoUT 2 that the OP had. It says 'Not yet available' in my library, and won't let me install when I click on the game, it says 'Incompatable'. Sent GOG support an e-mail but haven't heard anything back yet. Any suggestions that haven't already been tried?

GOG Galaxy is in beta stage. It means some (a lot?) functions will not work.

I've downloaded BoUT2 using GOG Downloader:
https://www.gog.com/downloader/
... and I'm running it without GOG Galaxy.