3D Voxel Sandbox Survival Game Builder

Claude Code builds a complete 3D voxel sandbox survival game in Three.js that runs in any browser. Infinite seeded terrain with biomes, caves, ores and structures. Break and place 24 block types, 30 recipes, four tool tiers, furnace, chests, bed, hunger, day and night, animals and four night monsters, creative mode, named world saves. Textures, creatures and sounds are all code. A ?demo=1 mode plays a trailer tour. Three variables set the world theme, the creatures and the art style.