SteamVR SDK

SteamVR is Valve's VR runtime and SDK, providing the tracking, rendering, and input infrastructure that VR applications and games run on top of, supporting a range of VR headsets (not just Valve's own hardware) through OpenVR.

For developers, the SteamVR SDK/OpenVR API is what game engines (Unity, Unreal) hook into to get headset tracking data and render stereoscopic output correctly, abstracting away headset-specific differences.

The common runtime layer for PC VR development and play across multiple headset brands, distinct from headset-specific runtimes like Meta's Oculus SDK.