I looked up what "the sentinel" was, and it turns out it was a game in 1986, that works on the BBC Micro and Commodore 64, and has 3D graphics! I didnt even know it was possible to do that on average computers in 1986!
The world procedural generation from a seed alone is amazingly well implemented in an environment so constrained most programmers nowadays wouldn't even be able to do anything in.
Stunt car racer had a 3d course and vehicle physics.
Elite had 3d space flight.