SteamVR - SteamVR is a suite of technologies created by Valve that power high-fidelity VR experiences.
Oculus Video - Watch online videos and your own movie files immersive VR.
Firefox Reality - Mixed Reality for the Open Web
VorpX - vorpX let’s you play your favorite games on Oculus Rift and HTC Vive in Stereo 3D. Many features are specifically tailored towards VR for the best possible experience on your VR headset.
YouTube VR - Watch YouTube cat videos (and more) in VR with Daydream
BigScreen VR - Your desktop in virtual reality, with friends; play games, watch movies, and hangout in VR.