this post was submitted on 03 Dec 2025
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Valve have been funding FEX to get x86 games on Arm Linux (www.gamingonlinux.com)
submitted 3 weeks ago by cm0002@lemmings.world to c/steam@programming.dev
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It turns out that not only are Valve using the open source FEX for the Steam Frame but they have been funding FEX since the beginning of it.

What exactly is FEX? FEX allows you to run x86 applications on ARM64 Linux devices, similar to qemu-user and box64. It offers broad compatibility with both 32-bit and 64-bit binaries, and it can be used alongside Wine/Proton to play Windows games.

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[โ€“] notaviking@lemmy.world 4 points 3 weeks ago

Does this allow us to play windows games on our Arm devices running windows? This feels like inception levels of translation layers

[โ€“] 2fm@lemmy.world 3 points 3 weeks ago

Right? And how much performace hit will end users "feel" with all the layers? I'm hoping to get a frame and not really worried, but this has been on my mind.