Posted September 22, 2015
Simplex: The "Install" button is greyed out and it says "Not compatible" next to it. I already downloaded the game using the old GoG Downloader. I would assume GoG's priority would be to make all game available on Galaxy immediately upon relase, so as to promote this new service.
Please try restarting Galaxy a couple of times after doing an account refresh: https://www.gog.com/account/refresh