3D Endless Runner Game Builder

Claude Code builds a complete 3D endless runner in Three.js that runs in any browser. Three lanes, jump, slide and slam, 20+ hand-made chunks with a validator that proves every chunk is passable, rooftop ramps, coin arcs, magnet, shield and your own power-up, missions with a score multiplier, revive, a shop with upgrades and outfits. Swipe, keyboard and gamepad. Every model, texture and sound is made in code. A ?demo=1 mode runs itself for trailers. Three variables set the world, hero and style.