Can Codex Build an Entire x86 Assembly Game Autonomously? A Real-World Experiment

Short summary

An experiment testing whether OpenAI's Codex can autonomously build a complete 16-bit x86 Assembly game (Asteroids-style) for DOS with VGA Mode 13h, with zero human code contribution. The human only defined objectives, play-tested milestones, and reported bugs; Codex handled architecture, implementation, debugging, git, builds, and verification. Only two gameplay bugs were found across the entire project, demonstrating strong autonomous coding agent capabilities.

• •Codex autonomously built a complete 16-bit x86 Assembly game with no human code contribution
• •Human role limited to defining objectives, play-testing, and reporting bugs; Codex handled all implementation, debugging, and project management
• •Only two gameplay bugs were found throughout the entire project, both fixed by Codex autonomously

Generated with AI, which can make mistakes.