9 AIs WORK TOGETHER To Make Game Engine From Scratch

A developer uses multiple AI models (Claude, Cursor with Opus, Gemini, Sonnet, GPT-5) in sequence to build a Unity-inspired C++ game engine called W Engine 5 from scratch. The process takes about 40 minutes and results in a working editor with scene viewport, game viewport, hierarchy, inspector, console, and Lua scripting support. The engine is then used to generate three playable games: Snake, an endless runner, and an FPS shooter. Results are mixed but surprisingly functional for an AI-generated project.