Mine was the Journeyman Project: Turbo in 1996. It wasn't even a true 3d game, since the graphics, although very good for the time, were pre-rendered and were stored as long .avi files on the cd. You navigated by clicking forward, backwards, turn left, turn right, etc. buttons in the HUD, and the avi clip jumped to a different place in the clip to show your new POV. ( It was more like a skip-around video player with a plot. )