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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.

Article taken from GamingOnLinux.com.
Tags: Proton, Steam, Valve
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516 comments
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Scoopta Aug 22, 2018
Quoting: ulysses768You can't have a winning business plan for a game streaming service if that service relies on Windows instances/VMs. Right now on AWS Linux GPU instances are 20-25% of the cost of Windows instances for the same instance type. Video games, AR, VR are the future of entertainment and margins will be nonexistent if you have to pay MS a license for every node you spin up. Linux gaming is the future, it's just that whatever OS the consumer is using is irrelevant, just like any other web app. No one runs Windows on cloud services unless they absolutely have to.
I personally would rather run my games local. I don't really like being enslaved to a cloud provider to run my games. Not to mention I don't want to be forced to have an internet connection either(although this is less important than the first point). I really don't like the general trend towards web apps. I find them to be more cludgy than native apps. The web definitely has it's place but JS heavy websites that try to take the place of native software definitely isn't it. The cloud also has it's place but I don't really want to replace my own compute power with the cloud.
Mohandevir Aug 22, 2018
Quoting: Comandante ÑoñardoIt will be very awesome if EA follow this example..
If they don't want to port their games to Linux, at least make a Linux Origin client with an embedded compatibility layer like this.

Isn't EA's games plagued with DRMs?
jens Aug 22, 2018
  • Supporter
"In addition to that, we've been supporting the development of DXVK[github.com], the Direct3D 11 implementation based on Vulkan; the nature of this support includes:
- Employing the DXVK developer in our open-source graphics group since February 2018
- Providing direct support from our open-source graphics group to fix Mesa driver issues affecting DXVK, and provide prototype implementations of brand new Vulkan features to improve DXVK functionality
- Working with our partners over at Khronos, NVIDIA, Intel and AMD to coordinate Vulkan feature and driver support"

(https://steamcommunity.com/games/221410/announcements/detail/1696055855739350561

My personal guess is that this a.o. correlates to:

"Shmerl: How did you manage to work around the lack of stream output like features?
YoRHa-2B: I didn't, that's kind of the point. And that's also why it might still take several months for this to go live, but it should happen eventually".

(https://www.gamingonlinux.com/forum/topic/2753/post_id=16614


Last edited by jens on 22 August 2018 at 6:09 pm UTC
Salvatos Aug 22, 2018
Quoting: GuestA big issue here is, does Proton really mean "Linux support" ? I don't think it does. Here's why.

When you get a port to Linux, even if it's by a third party, a lot of work has been done to bring that game over to the platform... even if a D3D wrapper has been used etc (i'm not going to go into the "lazy wrapper" argument). The porter is selling you a product that is certified by them to work with Linux, and has official backing of the original developer/publisher. If something doesn't work, or breaks, there is an official support method available. It is someones job to provide help on getting it working, and to fix that if it doesnt....
I think Valve are being pretty clear about that and most people here realize it behind all their excitement. The mere fact that Valve are actively investing money and developer time in Wine is thrilling to me, and them making it easier to use in the process for people who don't like to tamper with configs is icing on the cake. There is no question that this is "just Wine integrated into Steam," but Valve are also clearly putting effort into making Wine better, and by all accounts they have been making considerable progress in the past half year alone.

Because it's an experimental feature by nature, I and many others here have already said they would continue to buy actual ports primarily. And there are those who won't buy newer Windows games even if they run well through Proton, out of principle. But easier access to games we all already owned and couldn't play without a fuss is a definite short-term win, and I feel like things are likely to be favorable to porters in the mid-term when the userbase grows and more studios become interested in having a properly supported product on Linux.

There may be rough waters ahead, but I'm optimistic for a rainbow on the other side :)
Comandante Ñoñardo Aug 22, 2018
I posted a tweet with a suggestion to EA and......


Mr. Pinsky Aug 22, 2018
OH MY GOD
orochi_kyo Aug 22, 2018
Where are the people who said, that valve has done nothing for linux gaming?
Leopard Aug 22, 2018
Quoting: Comandante ÑoñardoI posted a tweet with a suggestion to EA and......



I think he / she really didn't mean that. That is just a standart answer
svartalf Aug 22, 2018
Quoting: minidouenthusiast users are also able to try playing non-whitelisted games using an override switch in the Steam client

There's a couple I picked up just to help my nephew figure out how in the heck to make happen that're in my library- I know what I'll be trying this evening... X-D
Comandante Ñoñardo Aug 22, 2018
Quoting: Guest
Quoting: Comandante ÑoñardoI posted a tweet with a suggestion to EA and......



One detects a hint of sarcasm

Yeah, but one can dream.
Tchey Aug 22, 2018
It's a great new for players, but i'm concerned about NATIVE Linux games. Too many, i think today, will use this instead of going the road to a proper Linux build.

Basically, it's a WINE inside Steam, so it's still not Linux.
namiko Aug 22, 2018
Shoot, this is huge (so late to the article! :( ). I was in a daze for a while after this, just shouting randomly and saying "holy shit" over and over.

Sure hope that once I can afford a proper AMD GPU that I can play the first two Mass Effects again with it. (Screw EA otherwise, no more money for them, I'm never using Origin to only play ME3, even though I downloaded the demo years ago with my old dual-boot. :P)

At least it'll take away the problem of additional overhead running Windows Steam client through Wine to play Windows Steam games, which is definitely a good thing if your machine's specs aren't top-notch. :)
Linuxpunk Aug 22, 2018
Well, I have one of the games in Steam's proton list, M&B With Fire and Sword. Installed it, it runs great (it already did in Wine, but I feel the lights are better now).

Let's hope this will bring more ppl to Linux, and lets keep supporting the developers that release or port games natively for our OS.
x_wing Aug 22, 2018
Quoting: TcheyIt's a great new for players, but i'm concerned about NATIVE Linux games. Too many, i think today, will use this instead of going the road to a proper Linux build.

Basically, it's a WINE inside Steam, so it's still not Linux.

From my point of view, a proper support is QA and fix issues on the platform you release your software. If they do it by using this wrapper or by doing a Linux binary, from users perspective will be the same.

Anyway, If I pay a Windows only game (one that the publisher don't care about Linux), I would like that some part of the money I pay goes for the people behind this big wrapper (and when I say "some part" I mean a part that the publisher would receive if the sale was from a Windows user).
warky89 Aug 22, 2018
This is convenient. I can confirm that DOOM is working great on Arch Linux with steam play.
Setting the in-game renderer to Vulkan is giving me 40-70FPS on a GTX970 at 2560x1440.
Tchey Aug 22, 2018
In a positive world, where good things could happen, what may happen is all dual-booters may stay on Linux for gaming now, so more game will be registered as Linux buyers, so more games will come to Linux.
jarhead_h Aug 22, 2018
For people still moaning about native ports, WE'RE NOT THERE YET.

For anything that's already up on Steam and GoG for Windows-only, you can write it off, >99% chance it will never be ported. Hell, some Linux ports get delisted after their release like Banner Saga and the Penny Arcade 1&2 games. WINE is the only way we get access to those games short of a dual boot heresy, and this sure looks like it's going to be the best version of WINE for gaming. And don't expect that situation to change for at least five years.

Five years plus? I would put money on the PS5 using Vulkan, and we're going to benefit from that tremendously. Vulkan streamlines the whitelisting for Steam Play. That leads to more Windows titles that just work with Steam Play on launch day. GoG can get in on this, too, as Valve is open sourcing it all. Linux user base expands as Microsoft continues to push the smarter ones our way. We build our user base to first rival Apple, and then exceed Apple.

Ten years on AAA titles are natively ported to Windows and Linux with Apple support waning as it's userbase has finally grown tired of paying the Apple tax on hardware that they can't upgrade and so stop buying Apple computers altogether. And yes, I said TEN YEARS because that's how long this is going to take.

As someone that had a NiB Commodore 64 as a first PC, let me assure you kids, this sort of shift takes time. It's a marathon kids, and that loud bang you just heard was a STARTER pistol.


Last edited by jarhead_h on 22 August 2018 at 7:27 pm UTC
melkemind Aug 22, 2018
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  • Supporter
Quoting: YoRHa-2B
Quoting: melkemindI have NieR Automata, but this game was broken on Windows [..] and not really playable without the third-party FAR mod
The fullscreen bug doesn't even happen on wine, and the game has been fully playable on wine for over a year now (and for over half a year with dxvk).

I'm sure we just have different ideas of what "playable" means. I used the FAR mod to improve performance and unlock the framerate, not just fix ultrawide screen problems. I just tried it with Proton, and it was locking to 30 fps. There's probably a way to get it to work. I just don't know what it is.
TheLinuxPleb Aug 22, 2018
7870. All games crash with amdgpu. :(
No Vulkan for me then.
wvstolzing Aug 22, 2018
Quoting: GuestOh and while it's nice and all to have DOOM II, Ultimate DOOM and Quake on that list, some great source ports already natively support linux, presumably to use a source port this way would involve using a windows version of said source port.. But what would be the point in that? :p

To be honest, it seems to me that including those titles in the list has no point other than making it look a little longer.
I'd like to think that a Linux user interested in playing DOOM (or Quake) would probably know that there's 'stuff' (chocolate-doom, the shareware levels for both DOOM & Quake 2, freedoom) in the core repos of pretty much every distro.
Though, then again, I might be overestimating the extent to which 'the average buyer' has a clue as to why it's better to play on source ports as opposed to dosbox.
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