SteamVR is a virtual reality platform developed by Valve Corporation that allows users to experience immersive virtual environments. It supports a variety of VR headsets, including the HTC Vive, Oculus Rift, and Valve Index, enabling gamers and developers to create and enjoy VR content. The platform provides tools for developers to create VR applications and games, utilizing features like room-scale tracking and motion controls. SteamVR also integrates with the Steam gaming platform, allowing users to access a wide library of VR titles and experiences, enhancing the overall virtual reality experience.