xenonisbad: I know GOG Galaxy is not officially available for Linux, but I was happy with how it run on Steam Deck with ProtonGE and let me play my GOG games there, with achievements, time tracking etc. 2 days ago I installed new update for GOG Galaxy, `2.0.80 Beta`, during which I got error with `essential component missing`.

After failed update GOG Galaxy started normally, but launching games was always ending up in crash, and trying to download, update or verify game files was always ending up in `Installation Failed (E2)` and `Update Failed (E2)`. I tried several different ways of reinstalling GOG Galaxy and it failed miserably, which leads me to believe there's something "wrong" with 2.0.80 that breaks compatibility.

I know GOG Galaxy doesn't officially support Linux/Steam Deck, but I really hope they can fix that. It was working before, and it stopped because of some changes seemingly unrelated to OS.

In the meantime, installing GOG Galaxy 2.0.77.22 via offline installer seems to be great workaround - although I'm worried that with time I will lose access to basic features and I will be forced to play GOG games on my Steam Deck without achievements/time tracking.

xenonisbad: How do I access this older version?
Sorry new to Gog

xenonisbad: No worries, I'm not new to GOG and it took me a while to figure this out.

I don't know how others do it, but I figured out direct link to offline installer of 2.0.77.22 version that's still on GOG servers: https://gog-cdn-fastly.gog.com/open/galaxy/client/2.0.77.22/setup_galaxy_2.0.77.22.exe

Just FYI, I found it by following what I learned in this thread: https://www.gog.com/forum/general_beta_gog_galaxy_2.0/is_there_an_offline_installer_for_galaxy_20. There someone posted link to JSON file in which GOG stores links to newest version of offline installers, and I just took that link and replaced version 2.0.80.33 with 2.0.77.22 (in two places). In the past they changed the location of offline installers, if they change it again, maybe new one can be found in JSON file.

rpfeynman: I have manually installed 2.0.77.22,as xenonisbad mentioned above, and the problems (both during Galaxy install and game repair) are not reproducing anymore. Looks like I can keep the client from upgrading for now, hopefully ti does not force an upgrade by itself.

SirMoikiOfAwesometon: Hi,

using GE Proton 9.10 works flawless with GOG Galaxy v2.0.80.
After having the same problems (error e2 at the end of installations) i found the solution at github (can not post links).

SirMoikiOfAwesometon: Hi,

using GE Proton 9.10 works flawless with GOG Galaxy v2.0.80.
After having the same problems (error e2 at the end of installations) i found the solution at github (can not post links).

xenonisbad: I know GOG Galaxy is not officially available for Linux, but I was happy with how it run on Steam Deck with ProtonGE

Luffy879: Thats the thing: You don't run more than 1 App on a Wine Prefix. You just don't.

Luffy879: All the integrations you're talking about are available on Heroic games Launcher too. Its Linux Native, it has functions for Gamescope, MangoHUD, selecting multiple Wine versions, downloading wine versions, all that stuff you probably need once you get into ProtonDBs Bronze Territory.