Valve is launching Half-Life: Alyx as a fully native Steam Frame game, a result engineers said once seemed impossible on the ARM-based headset.
36fps native rendering became viable through depth reprojection, foveated rendering and eye tracking, with Valve calling gaze-driven rendering the key breakthrough alongside Frame’s 16GB of RAM.
18 months of work focused mostly below the game itself—drivers, SteamVR and compositor changes—while open-source Mesa-based drivers let engineers test fixes in minutes instead of waiting weeks or months.
Valve avoided changing Alyx’s content so Workshop creations would still work, preserving cross-platform cloud saves and letting players move between streamed PC play and standalone headset sessions.
The port is also a template for Steam Frame’s broader VR push: Valve says the effort improved the whole software stack and suggests native standalone VR can now support more ambitious games.