Solved, I was able to click on a game in the Library then use an icon top right to add folder manually.



I tried adding games but it doesn't let me drag and drop an exe file nor does a browse window open.
There seems to be a search window but when I typed Cyberpunk 2077 it just showed the store page
and gave me the option to Install.

The only thing on my end that might confuse Galaxy is I have 2, GOG Games folders.
One is on my main SSD game drive partition and the second is on my HDD game
drive partition. It the same way I have Steam setup and allows me to choose performance
based install locations. Where obviously we don't need System Shock 2 on an SSD but
we sure the hell need CyberPunk 2077 on the SSD.

Any help appreciated, thanks.

I'm using v2 - go to top left corner & click the gear -> click Add games & friends -> click scan folders for GOG games -> click select folder

This will also scan sub folders so if you have several games in a folder it will find multiple games.

Please note that not all games are found. I have a few that I need to add manually (I don't remember which games & I don't remember the 'special' way some games are added manually)

I looked for this on various websites including youtube and solved it using to try to install the game in the same location.

https://thegeekpage.com/steam-not-detecting-installed-games/