A default world is charted on load. Drop, upload, or paste your own WorldGenerator.eco config to replace it and see where each material spawns by biome and world height. Everything runs locally in your browser.
Drop a WorldGenerator.eco file here, or
— or paste the JSON below —
Group byStyle
Density is a model index (deposit spawn rate × size, spread over each deposit's estimated vertical extent from its DirectionWeights), not literal blocks-per-chunk. Clay strata are approximated as flat bands. Surface heights use the config's WaterLevel & MaxGenerationHeight with the engine's per-biome elevation ranges.