this post was submitted on 20 Nov 2025
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Valve put up a new Steam Linux Runtime 4.0 with a move towards 64-bit (www.gamingonlinux.com)
submitted 11 months ago by cm0002@no.lastname.nz to c/linux_gaming@lemmy.world
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To ensure games run well on Linux either via Native Linux builds or Windows games with Proton, part of the magic is in the Steam Linux Runtime. A new version of it, the Steam Linux Runtime 4.0 was recently put up with some pretty big changes.

What's the point of it? It ensures Steam and games run through Steam on Linux work properly across all the many different Linux distributions. Another secret Valve sauce for Linux. Well, not secret at all but you get my meaning I'm sure.

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[–] flemtone@lemmy.world 20 points 11 months ago (1 children)

Proton-GE has had the Wow64 feature for a while now that can play older 32-bit titles under 64-bit, so it shouldn't be long before a truly 64-bit steam experience is available.

[–] noisypine@infosec.pub 1 points 11 months ago (1 children)

As of Proton-GE 9-22 I still cannot run Diablo II without all the 32 bit dependencies. I hear from people that Wow64 works, but I have never managed to get it to work pure 64-bit.

[–] Shark03@lemmy.world 3 points 11 months ago (1 children)

I think GE is on like 10-25 now or somewhere around there.

[–] noisypine@infosec.pub 2 points 11 months ago

Thanks for the heads up. 10-25 worked with the variable PROTON_USE_WOW64="1"