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Steam Beta finally enables Proton on Linux fully, making Linux gaming simpler
(www.gamingonlinux.com)
this post was submitted on 18 Jun 2025
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So if I turn on the global setting, does it mean it will run native linux games with proton as well? I'm mostly playing rimworld and project zomboid, which have native Linux builds.
No. To use the Windows build you need to specifically request it in the game's properties
Yup, just tested it with rimworld. Thanks!
Proton is only for running Win32 binaries
Nope, win64 works as well
I know, I was asking about which version will Steam decide for when I have the global setting on.
Probably so, there are a few native Linux builds on Steam that don't have feature parity or segregate multiplayer for silly reasons. (Total War: Warhammer III for example uses an entirely different method to generate random numbers in the native Linux build so you need to use proton to play with 'friends' on Windows)
Oh weird. I had an issue where I couldn’t play Dawn of War II with my brother on windows from my Mac. I solved it by using windows through boot camp, but that’s so lame.
I wonder if it’s the same issue.
Why are people downvoting? You gave an edge case and an example of it in action... what is there to disagree with?
Probably because that's not the case, native Linux builds don't run the Windows version through proton, unless specifically told to. (As I discovered after asking the initial question)
They didn't claim the windows version was run through proton by default. They said that some linux versions do not play well with cross-OS multiplayer, and thus the windows version must be run for said functionality.
It doesn't, as far as I could tell. I enabled the global option, and now I can just install and run windows only games without having to manually force the compatibility layer. Meanwhile, the Linux native games work just as intended.