The Steam Deck has arguably become the most renowned Linux PC, though many users may not recognize that its SteamOS operates on a Linux kernel. Central to its functionality is the Proton compatibility layer, which facilitates the seamless running of Windows games on Linux without significant complications. Recent reports indicate that Valve is currently testing a version of this layer optimized for ARM hardware.
Known as “Proton-arm64ec-5,” this version has been discovered in the SteamDB.info database, as reported by Tom’s Hardware. The inclusion of the “arm64” label points to a tool specifically tailored for ARM-based devices. ARM architecture is ubiquitous across various platforms, particularly in mobile devices like smartphones and tablets. For instance, Apple transitioned to ARM-based processors for its MacBook lineup in 2020, and the latest ARM-based Windows devices feature “Copilot+” laptops powered by Qualcomm’s Snapdragon processors.
The introduction of a Proton version specifically designed for ARM could vastly expand gaming possibilities, particularly for running SteamOS on devices equipped with ARM architecture. Since the release of the Nintendo Switch in 2017, handheld gaming devices using ARM chips have gained immense popularity, with the Switch itself utilizing Nvidia’s Tegra X platform. Valve seems to be eyeing the possibility of extending SteamOS support beyond the Steam Deck, with potential interests in devices like the Asus ROG Ally. Additionally, speculation surrounds the prospect of an ARM-based version of the Steam Deck, especially considering the original model is starting to feel dated with its AMD laptop processors.
Valve may also be exploring ways to enhance gaming performance on ARM-based Linux devices. Generally, ARM hardware in gaming has been synonymous with Android, focusing on mobile gaming and emulation of classic consoles. While running Windows games on ARM-powered Snapdragon laptops is feasible, it often results in significant performance drops. Similarly, macOS presents comparable challenges, but it’s less of an issue since Mac devices aren’t a primary choice for serious PC gamers.
It’s worth mentioning that Valve has yet to provide any official statements regarding this development. My insights are speculative, based primarily on the “arm64” label found in the SteamDB entry. Nevertheless, the idea of a compact, more efficient, and possibly more budget-friendly Steam Deck model leveraging ARM technology is undoubtedly captivating.