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Install GOG Windows Games on Steam Deck
Dark574 28 Jun
Hi there,

i am installing some Windows Games i bought from GOG on my Steam Deck. I do this by Desktop Mode and adding the installers through steam foreign game and setting proton. This works great so far...
The only problem i have is with addons for games e.g. i try to install Kingdom - Two Crowns, i have two executables, one for the main game and one for an addon

setup_kingdom_two_crowns_1.1.16_r17150_(55285).exe
setup_kingdom_two_crowns_norse_lands_1.1.16_r17150_(55285).exe

Installing the game is no problem, but when i try to install the addon it says it cannot find the main game. As far as i understand the problem is that Proton sets for each install a seperate prefix, so the addon cannot see the prefix of the main game

Is there some command line command or anything else i can use to install addons to the already existing game?

Last edited by Dark574 on 28 June 2022 at 11:00 am UTC
Lamdarer 1 Jul
Not sure but maybe you would have more luck using Mini-Galaxy or the Heroic Games launcher?
https://www.gamingonlinux.com/2022/05/heroic-games-launcher-gets-more-steam-deck-and-flatpak-improvements/
damarrin 1 Jul
Yeah, a launcher like Heroic will let you easily run an exe in an already existing wine prefix.
Shmerl 1 Jul
I have a question, how can you use Steam Deck controllers for GOG games without Steam?
damarrin 2 Jul
Maybe wait for GOG to release their GOG Deck, it should be sorted there.
Shmerl 3 Jul
I doubt GOG will write any support for hardware like that. Having open source drivers for controllers is the right way to do it.
Lamdarer 3 Jul
Quoting: ShmerlI have a question, how can you use Steam Deck controllers for GOG games without Steam?
You should add GOG as a non-Steam game to Steam, than you can use the controls.
Shmerl 3 Jul
Quoting: Lamdarer
Quoting: ShmerlI have a question, how can you use Steam Deck controllers for GOG games without Steam?
You should add GOG as a non-Steam game to Steam, than you can use the controls.

Yeah, that's sort of a cheating way. I'm interested in open source support for the hardware.

Last edited by Shmerl on 3 July 2022 at 4:14 pm UTC
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Last edited by TamaraHeinrich on 22 July 2022 at 6:38 am UTC
Dark574 13 Jul
Hi,

yes i solved the problem.
The Prefix is set in the steam property settings of the game -> Shortcut -> Start In
this needs to be the same for the dlc as for the main game
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