TrackIR - TrackIR adds depth to the PC gaming experience by enabling players to take control of the in-game view.
Tilt Brush - Paint in spaces around you with Virtual Reality
linux-track - Linuxtrack is a software bringing headtracking to Linux and Mac OS X.
VR Sketch - A tool for designers to draw inside virtual reality
VSeeFace - VSeeFace is a free, highly configurable face and hand tracking VRM and VSFAvatar avatar puppeteering program for virtual youtubers with a focus on robust tracking and high image quality
Clew - Universal search bar for all your cloud apps.