AI coder gets Doom running on a custom CPU designed by GPT-5.6 Sol — game viewport is overlaid on a pulsing schematic of the CPU in Turing Complete's sandbox environment

An AI enthusiast demonstrated Doom running on a custom CPU designed by GPT-5.6 Sol.

The CPU, named Codex-R32, was built and visualized live as a schematic inside the sandbox game Turing Complete.

The demo shows how far agentic coding and AI-assisted hardware design have progressed, with an LLM producing a functional virtual CPU capable of running a classic game port.