Had a CyberMaxx VR headset back in the days. It had a whopping resolution of 505x230 per eye at a combined 60 Hz (so each eye only got 30 Hz). Headtracking worked with 3 degrees of freedom. The included mouse driver for DOS made the head tracking available for every DOS game even if it didn’t have support. It came with Tekwar and a Flight Unlimited demo I never could get to run.

Some games worked with stereoscopic 3D. That was about the only really awesome thing about the headset. But the 30 Hz displays made sure that you could only play for a short while anyways. Descent was nausea inducing on its own. But in VR ot was a guaranteed pukefest.

Thinking about playing with the headset was always much better than actually doing it. I’d pull it out every few years and then put it back into storage. Last I heard it died at my brother’s.