Vibe Coding Works for Web Apps. It Breaks on Game Engines. Here's Why.

Vibe coding has a market cap north of $81 billion. Developers are shipping MVPs in hours. At the GameDev.js game jam, someone built an entire web game in 2 hours using Cursor and Claude. But try vibe coding a real game in Godot or Unity and you'll hit a wall fast. The same AI that confidently generates a React component will hallucinate node paths, misunderstand signal connections, and produce scene files that crash on load. The difference has nothing to do with the AI model. It has everything to do with what the AI can see. The context problem Vibe coding tools like Cursor, Bolt, and Replit Agent work well for web apps because web projects have a few things in common: the file structure is predictable (src/, components/, pages/), the frameworks are well-documented in training data, and most of the code lives in plain text files the AI can read directly. Game engines break all three assumptions. A Godot project has a scene tree that defines how every object relates to every other objec