Voxel Island Survival Crafting Game

Builds a complete first-person voxel survival crafting game in one offline index.html: a procedural volcanic island archipelago with caves, ores, ruins and lava, health/hunger/thirst/stamina bars, day/night cycle with 3 hostile night creatures and passive animals, tool tiers from wood to iron, 35+ crafting recipes, workbench, furnace smelting, chests, beds and rafts, plus a relic-hunting goal with a victory screen. Includes saves, settings, synthesized sound and a cinematic autoplay trailer mode. Customise the game name, island theme, day length and difficulty. Ends with a self-test checklist so the agent fixes bugs before handing over.