It's pretty simple, with your Galaxy client SHUTTED DOWN you download the windows.zip file in that page (assuming your using a windows PC) and unpack it over your %localappdata%\GOG.com\Galaxy\plugins\installed\steam_ca27391f-2675-49b1-92c0-896d43afa4f8 folder (make sure you delete everything inside that folder before).

It works absolutely fine.

I just tried the 1.0.5 solution as well and it works like a charm even the Steam update in the library took some time. But that was mainly because of the library size.
Thank you for providing this solution even I had preferred when GOG support had fixed this.

If there was a solution that "just worked", it would've been used by now. It's a feature on Galaxy I'd expect to work, otherwise, what is the point of putting it there at all?

Dear all,

I was a REAL holdout. Despite literal years of things not working correctly on GOG Galaxy, I kept on using it, downloading fixes from plug-ins from Github forums and all kinds of stupid shit wasting time that I should have been spent, you know, PLAYING VIDEO GAMES. Forget it. GOG Galaxy is done as a Game's Library Manager. It will hang on as the GOG storefront, but they have not fixed any of this for a LONG TIME despite lots of other updates, so it must a legal issue.... IN ANY EVENT, I finally just downloaded playnite. That was 20 minutes ago. It immediately found ALL the games on my hard drives. 5 minutes later I had entered my log-ins for all 7 of the main stores. As we speak, it is importing games and downloading metadata/graphics to display them all nicely. Yea, like I said, 20 minutes. I am ashamed to say that I easily wasted 20 hours trying OVER and OVER again to get galaxy working and keep galaxy working. I am done. No more. Life is too short. Everyone, spread the news, buy a turkey for tiny Tim's family, re-post this in every forum about how galaxy doesn't work: JUST DOWNLOAD PLAYNITE!

Have fun gaming and not fooling around on GitHub :-)

I gotta admit that I do use Galaxy quite a bit for my GOG games. But I have made a similar choice. Just picked a different poison, choosing LaunchBox instead. I hope with time Galaxy will get to be more stable so it can actually work as a proper launcher. But it really isn't there yet.

UPDATE: There are a couple annoying things about playnite (for example duplicate copies from different stores show up as separate entries), but most of them are fixed by plug-ins. How about Launchbox?

I find Launchbox to be a lot less automated. It can import just fine. But it doesn't automatically go and import any game you own without asking which is how Playnite worked for me when I tried it. And by default it doesn't import games that are not installed on your computer. Another big plus is that Launchbox has an awesome games database. I have actually often used it before I ever installed the software to find graphics for the custom icons I create for all of my games...

The main drawback is that it's payed software. You can do a LOT in the free version. But certain quality of life features are limited to the payed version.

Thanks for that info, I think I am sticking with Playnite just because it is open source and seems to have a lot of people working on it, feels very updated and the community seems really active. I waste enough money on games without spending even more on a games library manager lol...

Speaking of which, I just found "Full Screen Mode" - Holy cow, I thought playnite was good before, but this is incredibly easy to use and informative, you can even use your controller in the games menu and some add-ons allow you to add in all kinds of videos and graphics and stuff for each game -- and I think there`s... music? wow, nice, relaxing, ear pleasing music to pick a game to play by! -- I am also finding that you can do a hell of a lot with playnite if you are willing to find, download and setup all the add-ons...

I am actually looking for a sort of plug and play experience (I think I have PTSD from trying to keep Galaxy running over the last few years), so the fact that you have to download and configure add-ons to do things just like not make duplicates of the same game show up as a separate entry is kinda a pain in the a$$ -- ideally they would just integrate and automate this addon into the main program as it is a must have and by far the most popular add-on.