There was a port of Dactyl Nightmare for the Oculus, I played it on the DK2.

It wasn't as mind blowing as it was when I was 12 but a nice nostalgic trip none the less.

Even Descent on a regular 17" screen was incredibly immersive. I remember standing up from my chair after one session and immediately falling over... When I got back up again, I still couldn't manage stairs...