Valve released Steamworks SDK 1.63 in November 2025, adding libraries and tools to support native ARM64 games on Linux and Android platforms. This update is crucial as the gaming industry shifts towards ARM-based architectures, seen in devices like Steam Deck, the upcoming Steam Machine, and various Android VR headsets.
With this SDK, developers can now build and upload games that run natively on ARM64 processors, avoiding performance losses from translation layers or emulation. It also sets the stage for broader compatibility with ARM-powered devices running SteamOS and Android, enhancing the gaming experience on these platforms.
Key Features and Benefits
- Support for linuxarm64 and androidarm64 architectures added to Steamworks SDK, enabling native ARM builds.
- Improved performance and reduced CPU overhead compared to emulated or translated titles.
- Facilitates development for emerging ARM-based gaming hardware like Steam Frame and Android VR headsets.
- Includes updated controller input origins for newer devices like Lenovo Legion Go and generic controllers.
- Removes ISteamMusicRemote interface, streamlining media control processes.
Implications for Developers and Gamers
Developers gain new options for targeting ARM platforms without sacrificing performance, encouraging more native ARM game releases. Gamers can expect smoother gameplay and better battery life on handheld ARM devices.
The SDK update aligns with Valve’s broader Linux and ARM gaming initiatives, which include the Proton compatibility layer expansion and hardware innovations for the living room and portable gaming.
Future Outlook
As ARM processors become more prevalent in gaming devices, Valve’s support through Steamworks SDK 1.63 is a critical infrastructure upgrade. This development hints at upcoming announcements related to Steam hardware and a growing ecosystem for ARM-native PC gaming.
Frequently Asked Questions
What is Steamworks SDK 1.63?
It is a software development kit from Valve that allows game developers to integrate Steam features and now build native ARM64 Linux and Android games.
Why is ARM64 support important?
ARM64 support enables games to run natively on ARM-based processors, commonly found in portable devices and new Steam hardware, improving performance and efficiency.
Which new devices benefit from this update?
Devices like the Steam Deck, upcoming Steam Machine and Steam Frame, and Android VR headsets benefit.
Does this affect Windows gaming?
This update targets Linux and Android ARM64; Windows ARM64 gaming support remains a separate challenge.
When will native ARM64 games be widely available on Steam?
The rollout depends on developer adoption, but Steamworks SDK 1.63 lays the groundwork for increased availability starting in 2026.
Conclusion
Steamworks SDK 1.63’s ARM64 additions mark a key milestone in Valve’s drive to broaden Linux and ARM gaming. This opens up exciting possibilities for developers and gamers alike as the industry embraces modern ARM architectures across a range of devices.