TrackIR - TrackIR adds depth to the PC gaming experience by enabling players to take control of the in-game view.
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
FaceTrackNoIR - FaceTrackNoIR is only available for Windows-based PC's (sorry, we have to start somewhere) and...
VTube Studio - VTube Studio is an app for Virtual YouTubers that makes VTubing easy and fun!!
linux-track - Linuxtrack is a software bringing headtracking to Linux and Mac OS X.
Animaze by FaceRig - Livestream or Video Chat with custom 2d & 3d animated avatars. Add backgrounds & props with the Animaze editor. Use on Twitch, Discord, Skype, Zoom, & more