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MMD OreSpawn Documentation

MMD OreSpawn is a configurable world-generation engine used by mods and modpacks to place rocks, ores, fluid deposits, biomes, and other world materials.

This is not the unrelated mod that adds creatures, the DangerZone, and similar content.

Choose the documentation for your version

OreSpawn 4: current documentation

OreSpawn 4 is the current provider-driven engine. It supports world profiles, geological regions called geomes, broad rock formations, several ore patterns, covered fluid deposits, biome and dimension materials, templates, retrogen, configuration screens, and a public integration API.

Start with the OreSpawn 4 documentation

• New player or server owner: Player and Server Guide
• Learning about rock generation: Geomes and Formations
• Building a modpack: Configuration Reference
• Adding support from another mod: Worldgen Providers
• Writing an integration: Developer Guide

Use the CurseForge Files tab to select builds matching your Minecraft and Forge version.

OreSpawn 3: legacy Minecraft 1.10/1.12 documentation

The original OreSpawn 3 pages remain available for older installations and modpacks. OS3 and OS4 use different configuration formats, so use the documentation that matches the installed major version.

Open the legacy OreSpawn 3 documentation

All existing OS3 page names and links have been retained.

Project links

• Download MMD OreSpawn on CurseForge
• Read the MMD project overview
• Browse the canonical source
• Report an issue
• Join the MMD Discord