[ObscureMind]

Along the lines of building a full computer out of discrete logic parts, slu4 created the Minimal 64, described in his Youtube channel: https://www.youtube.com/@slu467

[TechBro8615]

This guy built a 32-bit RISC-V CPU in Terraria: https://youtube.com/watch?v=zXPiqk0-zDY