A Claude Code-built fractal flight sim lets you dive 100,000x deeper
Cathca · reddit · 2026-07-28
- The author built a browser-based fractal spaceflight simulator called Inward with Claude Code and Fable 5.
- It runs in a single HTML file, works on phones, and lets you fly through four fractal worlds: mandelbulb, mandelbox, Menger sponge, and Sierpinski.
- The core mechanic is unusual: your speed scales with distance to the surface, so movement gets finer as you go deeper, allowing about 100,000x inward traversal before floating-point precision breaks.
- Controls include mouse steering, WASD flight, scroll throttle, and an autopilot mode. The creator says Claude helped through trial and error, including fixing autopilot drift.
- Music was generated with Suno.
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