I remember spending some non-insignificant amount of time playing 3dpong, because that was the first time I got exposed to a wireframe game. I thought the formalism was delightful, it felt very cyberpunk. My first 3d game was probably Stunts, a racing game that used flat shading (there was also Abrahams tank, but I never got into it as much as some of the older people in my circle), and then there was a lot of games that used a kind of hybrid sprite, flat shading, texturing mapping approach, from wolfenstein to Daggerfall. I got 3dpong from a Slackware cd, which was also my first linux install, back when linux was cool :> I was democoding, so probably implementing phong reflection on a sierpinski cube which was a style at the time, and here was a game that established an entire 3d experience space with just a handful of lines.

(some might ask "how the hell did you not know about Elite or Tempest??" before pervasive internet discovery was a non-linear process, I think I learned about these games in the early 2000s, from the internet)