Good candidate for a port - simple single player Minecraft -
Shiunbird - 02-07-2022
https://github.com/jdah/minecraft-weekend
C and OpenGL.
At the moment, it doesn't even build in Mojave. It builds fine using my work laptop with Monterey. I managed to do the required changes, but it is crashing now (remember, still a C n00b).
However, I looked into everything and it doesn't use any super advanced OpenGL trickery and I think it will be a nice learning exercise, so I will try to port it.
It's pretty cool and it runs butter smooth.