Claude Opus 5 successfully built a fully playable first-person shooter using a remarkably simple three-paragraph prompt with no external assets. AI investor Matt Shumer developed this approach, calling it a Gauntlet Loop: giving an agent a concrete benchmark to beat, splitting work among independent critics, and preventing the builder from grading its own work. Other developers replicated the experiment with similar results, some using the exact same prompt and others using detailed 20-section prompts. The generated game runs on Three.js and WebGL2 with roughly 55,000 lines of code, with every texture and animation created at browser load time. However, researchers warn that the model was likely exposed to thousands of near-identical shooters in its training data, raising concerns about data contamination rather than genuine creativity.
Source: Read the original article
