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As we speculated previously, Valve have now officially announced their new version of 'Steam Play' for Linux gaming using a modified distribution of Wine called Proton, which is available on GitHub.

What does it do? In short: it allows you to play Windows games on Linux, directly through the Steam client as if they were a Linux game.

What many people suspected turned out to be true, DXVK development was actually funded by Valve. They actually employed the DXVK developer since February 2018. On top of that, they also helped to fund: vkd3d (Direct3D 12 implementation based on Vulkan), OpenVR and Steamworks native API bridges, wined3d performance and functionality fixes for Direct3D 9 and Direct3D 11 and more.

The amount of work that has gone into this—it's ridiculous.

Here's what they say it improves:

  • Windows games with no Linux version currently available can now be installed and run directly from the Linux Steam client, complete with native Steamworks and OpenVR support.
  • DirectX 11 and 12 implementations are now based on Vulkan, resulting in improved game compatibility and reduced performance impact.
  • Fullscreen support has been improved: fullscreen games will be seamlessly stretched to the desired display without interfering with the native monitor resolution or requiring the use of a virtual desktop.
  • Improved game controller support: games will automatically recognize all controllers supported by Steam. Expect more out-of-the-box controller compatibility than even the original version of the game.
  • Performance for multi-threaded games has been greatly improved compared to vanilla Wine.

It currently has a limited set of games that are supported, but even so it's quite an impressive list that they're putting out there. Which includes DOOM, FINAL FANTASY VI, Into The Breach, NieR: Automata, S.T.A.L.K.E.R.: Shadow of Chernobyl, Star Wars: Battlefront 2 and more. They will enable many more titles as progress on it all continues.

To be clear, this is available right now. To get it, you need to be in the Steam Client Beta.

There will be drawbacks, like possible performance issues and games that rely on some DRM might likely never be supported, but even so the amount of possibilities this opens up has literally split my head open with Thor's mighty hammer.

Read more here.

Holy shit. Please excuse the language, but honestly, I'm physically shaking right now I don't quite know how to process this.

Update #1: I spoke to Valve earlier, about how buying Windows games to play with this system counts, they said this:

Hey Liam, the normal algorithm is in effect, so if at the end of the two weeks you have more playtime on Linux, it'll be a Linux sale. Proton counts as Linux.

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Whitewolfe80 22 Aug, 2018
Quoting: x_wing
Quoting: dibzB
The not great:
  • Crazy Taxi: Loads, but crashes after pressing start.

Weird. Works flawlessly for me. Your system specs?

I had this earlier with Dishonoured and Skyrim they work but the performance is a lot lower that wine+ lutris however for others with the same 1060 card its flawless the only difference is our processors I have a ryzen 1600 currently both the other users have kabylake i5s, but am not sure thats the reason as more than a few run ryzen 5s in that google docs spreadsheet.
riusma 22 Aug, 2018
Quoting: GuestSo, while I can see how Valve thinks this is a good thing for getting games on Linux, and getting gamers over to Linux, it in turn has a big impact to those of us who were bringing games over to Linux officially. I don't see how Proton is going to help us with the big issue of getting publishers interested in Linux as a platform... in fact, I see it doing the opposite.

Well, I think Valve's move is more intended for peoples migrating to Linux with a library already full of Windows exclusive games (less dualboot will strengthen Linux marketshare on Steam), and even more intended for their "console-like" experience with Steam Machines (they resolve by this way the chicken and egg problem off not enough Linux gamers / not enough games available)... which is a way to protect their business as always (Steam for Linux and porting efforts of Valve's games with OpenGL benchmarks defeating DirectX were direct response to the risk of Microsoft hurting their marketshare with Windows store). But I think that many Linux gamers from the last years will continue to buy in priority games natively available or properly ported to Linux (at least it's how I will continue to spend my money on games in the near future). :)
mirv 22 Aug, 2018
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Quoting: Guest
Quoting: mirvI think I'm having trouble communicating my view. I _think_ people are just reading what I write as bashing Valve, but that's absolutely not my intention. I'll be quiet on this particular matter until I can think of a way to better explain myself.
MS didn't create DOOM ("the number one" software product in 1993-94), but it sure made sense not to have it break on Windows 95. Therefore, an entire legion of MS-DOS users could—if not always willingly—secure themselves with the knowledge that they could always cross over to Windows 95 without ever having to abandon their precious Doomguy. (Just look at all the Warframe junkies posting here!)

This attitude ( from "Valve" ) looks exactly the same. The initial push of SteamOS + Linux was essentially like breaking DOOM would have been in 1995, only this time it broke thousands of Windows games.

That barrier has just been breached. Now, instead of what many probably saw as being asked to make a blood oath to GNU/Linux, it's just a matter of moving to Linux when they feel good and ready ... unless, of course, some amazing and groundbreaking first-person shooter gets released natively on Vulkan for SteamOS. ;)

I would say the barrier hasn't been breached, that happened a while ago, this is more Valve chipping away at the breach and making it more visible for Steam users.
Mohandevir 22 Aug, 2018
Quoting: Guest... unless, of course, some amazing and groundbreaking first-person shooter gets released natively on Vulkan for SteamOS. ;)

What have you got on your mind?! :D
scaine 22 Aug, 2018
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Sorry if this has been asked before - is Proton going to contribute back into Wine generally? I suppose I'm asking if DXVK progress helps Wine more generally?
coolbober 22 Aug, 2018
Amazing. I've read this article 3 times already.
legluondunet 22 Aug, 2018
Quoting: chancho_zombieNow we need better Net framework support, IMO a good chunk of the games that don't run it's .Net fault.

Yes, same experience here: Batman, L.A. Noire...need .NET and today there are a lot of issue that block the install on 32 and 64 bits Wineprefix.
Windows media player is also need for Darksiders (remastered or not).
TheLinuxPleb 22 Aug, 2018
Hmmmmm... Proton on Github that MS owns.
jens 22 Aug, 2018
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Quoting: Mountain Man"Proton counts as Linux."

Now that is huge!

Yep, that is _the_ most important piece of information for me. Finally there is a chance to get better numbers regarding market/financial share between platforms. I really hope that Linux will rise from the 0.5% to a much more significant percentage. Once the numbers increase developers will keep Linux much more in mind when starting a project.

Regarding Feral, I really hope that they will continue to provide us with a high-quality ports like recently RoTTR or soon LiS:BTS, at least once in a while. I'll certainly continue to buy from their store. Like someone already stated, may be they will end up eventually with even more work. I would love that.
lordheavy 22 Aug, 2018
Quoting: scaineSorry if this has been asked before - is Proton going to contribute back into Wine generally? I suppose I'm asking if DXVK progress helps Wine more generally?

They contribute to wine, see
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