Valve Has Been Working With FEX to Bring Windows Games to ARM for Almost a Decade, According to SteamOS Developer

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According to an interview that SteamOS coder Pierre-Loup Griffais had with The Verge, Valve has been working with and funding efforts to bring x86 games to ARM, including the FEX emulator, for years. In the specific case of the FEX emulator, Valve has supported the developer since its inception back in 2018, paying him enough for it to become his full-time job.

The FEX emulator is a frankly impressive x86 to ARM emulator that allows users to play your average PC game on ARM devices, such as your Android phone or tablet, or, you guessed it, the upcoming Steam Frame headset. The impressive progress that has been made suddenly makes a lot more sense when you realize that it's been backed by a big name in the business.

Why is Valve so interested in expanding PC gaming into the ARM space? Well, for one thing, more support means a larger user base, which will mean more customers. Setting up PC gaming on a mobile ARM device is getting easier and easier, and with Valve working on an ARM version of SteamOS for the Steam Frame, we could see Valve push into what we've traditionally seen as the "mobile" sector of gaming.

There are also inherent advantages to the ARM architecture as opposed to x86, such as it being much friendlier to battery-powered devices, ones that excel at using minimal power, ideal for a VR headset or other mobile/handheld devices.

Valve is looking to do for ARM what it has already done for Linux: remove (or at least minimize) the disparity between choices, so whether you're on a Windows/Linux or ARM/x86 device, you'll be able to play your Steam games.

Valve has already stated that methods like the FEX emulator will be built into the Proton compatibility layer, so playing x86 games on an ARM device should be as seamless as playing Windows games on a Linux device is now.

Have you tried running x86 software on your ARM devices yet? How did it go? Let us know in the comments below.

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