I guess that < 0,01 % of COTW players has the very expensive Tobii system (250..300$) - but almost every has a webcam, which can be used with AITrack + OpenTrack (= 0 $!!) for headtracking or with the new Eyeware Beam Software (49 $?) + OpenTrack as EYE TRACKER (!!), like the Tobii is.
Both can't be used, because COTW has no option for TrackIR, which was in Classic.
#Enable TrackIR like theHunter Classic have - For free & cheaper head + eye-trackers!
quaint token