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Proton GE, the community-built fork of the Proton compatibility layer for Linux has a big new release out.

Need a quick reminder? Wine is a compatibility layer that can help to run Windows apps and games on Linux. Valve have their own version called Proton which is included with the Linux Steam Client in Steam Play, and Proton GE is a special version of it built by user "GloriousEggroll". Why use it? You might find certain games need adjustments not currently in the official Proton and Proton GE can make them run "out of the box".

Proton-5.9-GE-3-ST is the brand new release aimed to now be the stable Proton GE release. It pulls in tons of fixes to help various Windows games run on Linux including GTA V, Metal Gear Solid V: Ground Zeroes, Planet Zoo, Jurassic World: Evolution, Origin client fixes and much more.

You can find the release on GitHub. If you wish to install it into Steam, the process is quite simple as Steam auto-detects new tools added for Steam Play as long as you put them in the right folder. For normal Steam use you can download the release build of Proton GE (Proton-5.9-GE-3-ST.tar.gz) and extract it into here:

~/.steam/root/compatibilitytools.d/Create the folder if it doesn't exist.

Then reboot Steam for it to show up as an option to force on a game. More info on the Proton GE GitHub.

Article taken from GamingOnLinux.com.
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19 comments

ageres Jul 6, 2020
There is proton-ge-custom-updater that checks if an update is available, downloads it, unpacks and deletes the downloaded archive.


Last edited by ageres on 6 July 2020 at 11:10 am UTC
TheSHEEEP Jul 6, 2020
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There is proton-ge-custom-updater that checks if an update is available, downloads it, unpacks and delete the downloaded archive.
That's really helpful!

What's the relation between GE and Valve? I really do wonder why some of these fixes are in GE but not the official Proton.
Beamboom Jul 6, 2020
I really wish GloriousEggroll would join forces with the Valve efforts instead of operating on the side. I try avoiding to do more "custom modifications" to my system than absolutely necessary. It's such a nightmare whenever I do a new fresh install.


Last edited by Beamboom on 6 July 2020 at 11:27 am UTC
Brisse Jul 6, 2020
I really wish GloriousEggroll would join forces with the Valve efforts instead of operating on the side. I try avoiding to do more "custom modifications" to my system than absolutely necessary. It's such a nightmare whenever I do a new fresh install.

Doesn't some of these contributions trickle back into the official version whenever possible though?
ageres Jul 6, 2020
I really wish GloriousEggroll would join forces with the Valve efforts instead of operating on the side.
I don't think it's possible. GE uses some not-so-legal tweaks and Windows files, Valve moderators on GitHub even remove every mention of GE from Proton issues.
I try avoiding to do more "custom modifications" to my system than absolutely necessary.
Proton-GE doesn't affect the OS, it's just one folder Steam uses to create another folder with a game's wineprefix. Delete it, and it's gone. I also use Boxtron for playing DOS games on Steam, quite handy.
t3g Jul 6, 2020
I really wish GloriousEggroll would join forces with the Valve efforts instead of operating on the side.
I don't think it's possible. GE uses some not-so-legal tweaks and Windows files, Valve moderators on GitHub even remove every mention of GE from Proton issues.
I try avoiding to do more "custom modifications" to my system than absolutely necessary.
Proton-GE doesn't affect the OS, it's just one folder Steam uses to create another folder with a game's wineprefix. Delete it, and it's gone. I also use Boxtron for playing DOS games on Steam, quite handy.

You are correct in Valve deleting any mention to custom Proton builds. Found that out here when I asked if the person tried the GE-MF version and it was deleted immediately: https://github.com/ValveSoftware/Proton/issues/4031#issuecomment-652721381
Nanobang Jul 6, 2020
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Liam, I'd like to suggest adding this, whole-cloth, to your already existing Proton/SteamPlay primer. This article was exactly the kind of concise-but-clear info someone like me wonders about. Really excellent work!
TheSHEEEP Jul 6, 2020
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I try avoiding to do more "custom modifications" to my system than absolutely necessary.
Proton-GE doesn't affect the OS, it's just one folder Steam uses to create another folder with a game's wineprefix. Delete it, and it's gone. I also use Boxtron for playing DOS games on Steam, quite handy.
That's true, of course.
But it is still another additional step to do when the goal should always be to reduce the amount of steps one has to do.

Not that it can be helped much, given the nature of ProtonGE.
Liam Dawe Jul 6, 2020
Liam, I'd like to suggest adding this, whole-cloth, to your already existing Proton/SteamPlay primer. This article was exactly the kind of concise-but-clear info someone like me wonders about. Really excellent work!
We have a dedicated page, which links to a proper guide ;)
redneckdrow Jul 6, 2020
Y'know for some reason, Mod Organizer 2's USVFS works fine for Bethesda games under the official 5.0-9, but isn't working with GE builds (which fix quite a few things for those games out-of-the-box, such as audio.) and I have no clue why, seeing as this patch was added to upstream WINE in 4.21+.

Anybody got any ideas? I mostly use Bethesda games and their third-party utilities as a litmus test for new versions of WINE/Proton, seeing as they've historically been problematic.
I wonder why there are more improvements in PROTON GE than in the official PROTON, which wasn't updated in about a month...
a0kami Jul 6, 2020
What does NR, MF and ST mean in the build id?
Purple Library Guy Jul 6, 2020
Liam, I'd like to suggest adding this, whole-cloth, to your already existing Proton/SteamPlay primer. This article was exactly the kind of concise-but-clear info someone like me wonders about. Really excellent work!
We have a dedicated page, which links to a proper guide ;)
How dedicated is it? Is it a truly fanatical page, or just quite conscientious?
ageres Jul 7, 2020
What does NR, MF and ST mean in the build id?
NR - fixes for video in games by NetherRealm (Injustice 2, Mortal Kombat 11);
MF - fixes for Media Foundation video without the need for installing Windows dlls;
ST - stable (for now it's 5.9 while the others are 5.11), because newer branches break some games.
Check what version is better for your game first, the latest doesn't mean the best.
elmapul Jul 7, 2020
ok, i didnt tested all proton versions, but this is the first one that i try that can play the videos from Guilty Gear x2 #Reload!


ironically the game itself dont work, there is nothing on screen.
now i have an proton build who can play the game except the cutscenes and another one who can play the cut scenes except the game...

i guess its time to fill another ticket on github
elmapul Jul 7, 2020
ok, i cant find their issue tracker...
Nanobang Jul 7, 2020
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Liam, I'd like to suggest adding this, whole-cloth, to your already existing Proton/SteamPlay primer. This article was exactly the kind of concise-but-clear info someone like me wonders about. Really excellent work!
We have a dedicated page, which links to a proper guide ;)

Do please consider adding this to your excellent beginner's guide? (I called it your primer, but this is what I was thinking of :))


Last edited by Nanobang on 7 July 2020 at 12:33 pm UTC
Liam Dawe Jul 7, 2020
That guide is supposed to be simple though, if we start loading it up with Proton GE and all sorts it defeats the purpose. Additionally, it already mentions Wine anyway.
I wonder why there are more improvements in PROTON GE than in the official PROTON, which wasn't updated in about a month...
That's quite simple. Because some of these improvements make some games work, and a few games work better, but break other games. Official Proton can't have this. It has to have the least number of failed games possible and can't tolerate regressions. It has to adopt a conservative approach to be useful.

I know, but... a month without improvements or a new release candidate for public testings?
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