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A GTA-QUALITY GAME AT THE SPACEX LAUNCH SITE. RUNNING IN CHROME

A GTA-QUALITY GAME AT THE SPACEX LAUNCH SITE.

✦ Prompt
A GTA-QUALITY GAME AT THE SPACEX LAUNCH SITE. RUNNING IN CHROME. BUILT IN ONE PROMPT

An astronaut walks across wet tarmac toward Starship, a news crew films the launch, the ground reflects the horizon at sunset. Looks like a $200 million Rockstar cutscene. It's a browser tab

The whole thing was built in one Claude session using a Gauntlet Loop — the agent split the job into pieces, spawned a builder AND a blind critic for each piece, and refused to ship until the critic couldn't tell it apart from the reference

The stack that runs it:

? three.js + WebGPU as the renderer
? Baked lighting + HDRI environment
? Wet-ground SSR (screen space reflections)
? Post-processing pass: ACES tone mapping, bloom, GTAO, depth of field, motion blur
? Debug HUD is literally HTML painted on top of the canvas

The pipeline behind the assets:
? NanoBanana + Meshy + Tripo generated every model automatically
? ElevenLabs MCP generated every sound effect
? Zero downloaded assets, zero pre-made models, zero handwritten shaders

The performance:
? 64 FPS at 1920x1080
? 0% packet loss on stream
? Runs on a laptop through Chrome, no install

The trick nobody wants to admit: ~90% of what looks like "next-gen graphics" is post-processing, not real-time rendering. Studios spent a decade convincing us we needed dedicated engines. A browser tab and a post pass just called that bluff

Save this before every AAA game trailer starts getting compared to a Chrome tab