Valve boosts technology to run Steam games on mobile devices with ARM processors

Valve is actively working on an initiative that could revolutionize access to PC games by allowing the Steam platform’s vast catalog to run directly on mobile devices with ARM architecture processors. The revelation was made by Pierre-Loup Griffais, one of the main developers behind SteamOS and the successful Steam Deck, confirming a project that has been in the works for almost a decade.

The company’s central objective is to break down hardware barriers, offering players the freedom to access their game library on cell phones and tablets without depending on streaming solutions or the need for adapted versions. The strategy, initiated in 2016, involved hiring experts and financing crucial projects to create a robust and efficient compatibility layer.

This strategic move positions Valve to compete in a market dominated by billions of mobile devices, potentially transforming every smartphone or tablet into a gaming console capable of running complex titles. The effort aims to ensure a consistent gaming experience, regardless of the platform used by the user, be it a high-performance PC or a portable device.

Open-source technologies at the center of the strategy

The foundation for this ambitious transition lies in Valve’s heavy investment in open source tools. The company has been financing projects that are essential for translating and running games developed for the x86 architecture, prevalent in computers, on ARM processors, which dominate the mobile sector. Essa approach not only enables the goals of Valve, but also strengthens the entire free software development ecosystem, making improvements available to the global developer community at no cost.

Two components are fundamental in this process. The first is Proton, the compatibility layer that Valve already uses successfully in Steam Deck to run Windows games on its operating system based on Linux. Proton acts as a translator for graphics libraries, converting DirectX calls to the more modern and flexible Vulkan API. The second is the FEX emulator, a project that Valve has supported financially since 2018. The function of FEX is to translate the processor’s low-level instructions, from x86 to ARM, in real time and with minimal performance loss, allowing the game code to run almost natively on the new hardware.

Practical applications on new hardware

The first concrete demonstration of the viability of this technology already has a name: Steam Frame. Trata is a standalone virtual reality headset, which does not require a PC to operate. The device uses an ARM architecture Snapdragon chip and runs SteamOS directly, being able to run PC games from the Steam library independently, a significant technical milestone for the industry.

The performance of the Steam Frame in internal tests with demanding titles proves that the Valve approach is functional and opens the door to a new product category. The company has already signaled that it plans to expand support to more ARM devices through future SteamOS updates, cementing its operating system as a truly universal platform.

While the company’s immediate focus remains supporting the Steam Deck and launching new products like the Steam Frame, expected in early 2026, the groundwork is already complete. Isso opens up a range of possibilities for the emergence of new lower-cost portable and ultraportable consoles with high energy efficiency, capable of playing PC games.

SteamOS Ecosystem Expansion

Valve’s strategy is to maintain SteamOS as a consistent and unified operating system across all platforms, whether x86 or ARM based. Using the same software components and update mechanisms drastically simplifies the work of developers and ensures that users can migrate their settings and saved games between different devices without any friction.

Pierre-Loup Griffais expressed great optimism about the inclusion of ARM options in the compatible hardware portfolio. Essa expansion creates opportunities for strategic partnerships with portable console and laptop manufacturers, who will be able to license SteamOS to create innovative and energy-efficient products, offering consumers more choice.

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The company does not rule out improving other fronts, such as the Steam Link application, which allows game streaming. However, the top priority remains improving the native running experience, both on PC and on the brand’s dedicated devices such as the Steam Deck and future releases.

The heavy investment in compatibility also means that game developers won’t have to worry about creating specific versions of their titles for the ARM architecture. By focusing on general optimizations for the Steam platform, your games will automatically become compatible with a new universe of devices, expanding your market reach with minimal effort.

Challenges and performance on ARM

Processors with ARM architecture have become the standard in the mobile industry due to their remarkable energy efficiency, which allows long hours of use with low battery consumption. Valve seeks to capitalize on this advantage to create portable devices with greater autonomy, one of the main competitive differentiators in this segment. Embora Historically the raw performance of ARM chips has not rivaled high-end x86 processors in high-intensity tasks, this gap has been closing rapidly. Avanços seen in chips such as the Snapdragon 8 The real-time translation performed by FEX and Proton is designed to have minimal impact on performance, as calls to modern graphics APIs like Vulkan are executed directly on ARM hardware, avoiding resource-consuming emulation layers. Testes internals at Valve have already confirmed that several popular titles run smoothly on mobile hardware, a feat that sets the stage for a new era of portable gaming.

Future of cross-platform compatibility

With this initiative, Valve solidifies Steam’s position as a truly universal gaming platform, independent of the operating system or underlying hardware architecture. Para gamers, this represents an unprecedented appreciation of their game libraries, accumulated over years, which become accessible on an ever-increasing number of devices.

Continued funding of open source projects also serves as an accelerator for innovation across the technology community. Improvements developed for FEX and Proton not only benefit Valve products, but return to the Linux ecosystem and are leveraged by other emulators and software projects, creating a virtuous cycle of collaborative development.

Benefits for players and developers

For players, the main benefit is flexibility. The ability to start a game on PC, continue on Steam Deck during transport, and perhaps even on a tablet at night, without losing progress, transforms the way game consumption is perceived. Steam libraries become an even more valuable and portable digital asset.

On the developers’ side, the advantage is saving resources and expanding the audience. The technical and financial effort to port a game to a new architecture is significant. By eliminating this barrier, Valve allows studios, especially independent ones, to reach the vast mobile market without diverting focus from developing improvements and optimizations that benefit all players on the Steam platform.