Reminds me of a ray tracing obsession I had around 1990. I created ray tracing “games” on every weird system I had in any programming language I knew at the time. I even had one on my old 1984 MSX machine, that ran at 5 fps, which wasn’t bad at all. The one I made in C on my DOS machine was pretty good actually. Except I never got very far with the actual game part, as soon as it rendered and you could move around I got bored and moved on to doing the same thing on the next weird machine or language.

These were inspired by a lot of demos going around at the time and papers being passed around. I think Wolfenstein itself was inspired by the same demos.