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Steam Play versus Linux Version, a little performance comparison and more thoughts

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Now that Steam has the ability officially to override a Linux game and run it through Steam Play instead, let's take a quick look at some differences in performance.

Before I begin, let's make something clear. I absolutely value the effort developers put into Linux games, I do think cross-platform development is incredibly important so we don't end up with more lock-in. However, let's be realistic for a moment. Technology moves on and it's not financially worth it to keep updating old games, they just don't sell as well as newer games (with exceptions of course). The intention with such comparisons is not to favour any developer or any method of gaming on Linux. It’s just to show what’s possible, what the differences are, what doesn’t work and so on. As the years go on, there will be more ways to run older games better and better, of that I've no doubt.

I'm not a zealot for any one particular method of gaming either and as a fan of all things gaming, software and technology, I thought it might be interesting and hopefully you do too. The tests were attempted on some games that have a Linux version, while also being games that are quite heavy on your system.

Note: All tests done at 1080p on Ubuntu 18.10, with the NVIDIA 415.25 driver and my 980ti with Proton 3.16-6.

First up, let's take a look at Tomb Raider (2013) which arrived on Linux back in 2016. Since Tomb Raider has a handy built-in benchmark tool, we will start off simply by showing the results:

Benchmarks also only tell one part of the story. In the case of Tomb Raider, through Steam Play it needed to run through entirely at least once or there was quite a lot of stuttering which wasn't the case in the Linux version. However, the Linux version has parts of the game where performance dives a lot and the Steam Play version is better there. To Feral Interactive's credit (who ported it to Linux), their later ports are miles ahead of this.

Sidenote: For the videos, the titles "Steam Play" and "Linux" show their corresponding videos to the side, in case that wasn't clear.

In the case of Cities: Skylines which released on Linux back in 2015 at the same time as the Windows version, testing out the "Benchmark" map from the Steam Workshop resulted in something I didn't expect. The performance was very close but the Linux version was noticeably smoother with a couple of extra FPS.

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Either way, a big city doesn't perform well no matter how you do it. I should note here too, that even though the Linux versions performs slightly better it does eat up quite a bit more RAM.

Next up, MXGP3 a rather new Linux port from November 2018. Given how it's quite new, I honestly would have thought it would do reasonably well. As noted in my previous article, the performance of the Linux version isn't very good and Steam Play blows it out of the water.

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Not a pretty picture, with the official Linux version struggling at times to even hit 30FPS it makes it difficult to control. It's also not a very good game but that's a different thing altogether…

Dying Light is up next, a personal favourite of mine. Also no benchmark mode I could find for the Linux version, so a comparison video keeping it as close as I could:

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As you can see, both versions work quite well. I've completed the game more than once and I was actually happy enough with the performance of the Linux version, it was good enough and playable. However, the Steam Play version with Vulkan is at times around double the performance of the Linux version which is quite striking.

Next up, I tried Total War: WARHAMMER II. A Linux port from Feral Interactive released only in November last year. This would have been quite an exciting comparison, since the Linux version uses Vulkan. First issue encountered when trying it in Steam Play, is that it gives you a completely blank white launcher, so you need to opt into their new launcher beta which does work in Steam Play.

So you hit play on the fancy new launcher, guess what happens next? You get a brief moment of life, a glorious flash of black…and then it just quits to the desktop. Happens across both Proton 3.7 and 3.16. So, Total War: WARHAMMER II in Steam Play is a dud whereas the actual Linux version does work rather nicely.

The curious one is Rise of the Tomb Raider, I've been told this should work in Steam Play to do a comparison. However, it faced the same issue for me as Total War: WARHAMMER II. A black screen for a moment and then it quits on me. I have sent a log to the creator of DXVK for that, maybe it will help somewhere. Again, the Linux version from Feral works nicely.

 

The testing in this article was going to be longer, I had some grand plans for doing a lot of comparisons. However, Steam Play is still in beta and it has an uphill battle ahead of it. Rise of the Tomb Raider, Total War: WARHAMMER II, Civilization VI, Deus Ex: Mankind Divided and BioShock Infinite didn't work at all in Steam Play across both Proton 3.16 and 3.7 but the Linux versions do work. Sad about not being able to test more, but it's an example of how a supported release is the better option for certain games (especially multiplayer games like Darwin Project) and not the answer to everything as some claim. Great as an option but not quite ready for prime time overall, it will be fun to watch it evolve over this next year.

As I've said before though, with Steam Play it's not just a case of squeezing out extra performance. It's also a question of support and features of the Linux version (gamepad support, fullscreen issues, missing graphics options and so on). From a performance standpoint though, it shows clearly Linux can be a gaming platform that performs well.

The biggest question in my mind is: do you really get any true support with games you purchase to play in Steam Play? What exactly are you paying for? I don't really have an answer for that. For a purchased game, the developer (you would think) would be focused on it and fix issues as they come up. With Steam Play though, it covers such a massive list you could end up waiting a while for a fix (if it's possible at all). Thankfully, Valve has made a good step towards stopping Steam Play updates breaking games, since the latest Steam client beta no longer overrides the Proton version for a game in the whitelist.

I may do more tests in future, if readers want me to you will need to let me know what games you want to see tested (they have to have a benchmark mode in the Linux version). We still don't have a decent amount of Linux games that actually do have a benchmark mode, so it does make such a thing rather tricky to get a lot of value out of it and comparison videos eat a huge amount of time for even the most basic rough editing.

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112 comments
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Liam Dawe 18 January 2019 at 9:13 pm UTC
ripper@liamdave The video comparison placement is utterly confusing. Are the descriptions on the left and right, or on top and bottom? It's difficult to figure out which is which. Why don't you simply place it side by side and descriptions below/above, as usual?
Sorry, thought it was pretty obvious, never had an issue when others have done it similarly. The video is to the side of the title. Not really sure why it's confusing, since the top most title is far, far away from the second video but I've taken the feedback on and made a note before the videos.


Last edited by Liam Dawe at 18 January 2019 at 9:15 pm UTC
gustavoyaraujo 18 January 2019 at 9:27 pm UTC
This article is nice for developers. Well, if they think it's expensive to port a game to Linux, so Why not help your game work with Proton/DXVK, And the performance will not be bad.
Hey Capcom, can you guys read my comment?
Purple Library Guy 18 January 2019 at 9:34 pm UTC
KimyrielleAlso, remember when Loki's native ports stopped working on newer Linux machines because of library updates and distro changes? Native ports aren't the perfect solution either, honestly.
Oh, I remember. My old Loki version of Alpha Centauri is the only game I have ever actually bothered to scour the internet to figure out how to get it working. Last time I tried you could still do it, although I wasn't getting sound to work. Took a bit of fiddling though. But it's Alpha Centauri--totally worth it. The interface is a little clunky by modern standards but otherwise it's still head and shoulders the best game of its kind.
Fraaargh 18 January 2019 at 9:55 pm UTC
Hey @liamdave, just so you know I also had problems identifying which video was on which OS. It was not obvious if the description was matching the video below (same column) or beside (same line). Thanks for your amazing work btw
Dunc 18 January 2019 at 9:56 pm UTC
Interesting about Cities: Skylines, since it's memory usage that's the problem with it currently for me. I can live with a lower framerate or a bit of stuttering in a game like that if it means I can load my old saves again.
Liam Dawe 18 January 2019 at 10:07 pm UTC
FraaarghHey @liamdave, just so you know I also had problems identifying which video was on which OS. It was not obvious if the description was matching the video below (same column) or beside (same line). Thanks for your amazing work btw
No worries, I will absolutely look to address this next time. Not something I do often, so I'm happy to adjust future comparison videos.
Salvatos 18 January 2019 at 10:09 pm UTC
Leopard
KimyrielleIf I remember right, Valve already hired the person behind DXVK, so it's not that they aren't getting compensated for their work.

You're talking with him already.

He is Philip Rebohle.
It would be nice if there were a tag under his avatar to indicate this, if he's cool with it. This keeps happening.


Last edited by Salvatos at 18 January 2019 at 10:09 pm UTC
wvstolzing 18 January 2019 at 10:40 pm UTC
As to Vulkan pn the PS5, I wouldn't hold my breath for it. I expect Sony to use their own proprietary even-closer-to-the-bare-metal graphics API, together with their own proprietary tools for the developers.

Also, the choice of FreeBSD as the os most likely has nothing to do with wanting to work in a unixy environment, or FreeBSD's own strengths (networking? jails? ZFS? tidy directory structure and great man pages?), but everything to do with the permissive licensing.
Liam Dawe 18 January 2019 at 10:46 pm UTC
Salvatos
Leopard
KimyrielleIf I remember right, Valve already hired the person behind DXVK, so it's not that they aren't getting compensated for their work.

You're talking with him already.

He is Philip Rebohle.
It would be nice if there were a tag under his avatar to indicate this, if he's cool with it. This keeps happening.
Since they were fine with it, done.
YoRHa-2B 18 January 2019 at 11:24 pm UTC
FWIW since Liam is unable to run Rise of the Tomb Raider for reasons that are beyond me, I did a quick video on Proton vs Native in that game. Things have improved a bit since Xpander made one back in April, but we're still miles behind, and considering how much better the native port runs than even native D3D11 on Windows (at least on my hardware), it's likely to stay that way.

Edit: And thanks for the tag.


Last edited by YoRHa-2B at 18 January 2019 at 11:25 pm UTC
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