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MMD OreSpawn Library Wiki & Guide

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MMD OreSpawn Library is a library mod that provides better control over the spawning of ores in Minecraft. How it works: Ore Spawn parses all of the .json files found in orespawn and adds ore generators to the game based on those files.

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Contents (5)
  1. Guides
  2. Configuration
  3. Frequently asked questions
  4. Gallery
  5. You May Also Like

Guides

Step-by-step, in-game.

Configuring Ore Spawning with MMD OreSpawn LibraryHow Ore Spawn Works MMD OreSpawn Library is a library mod that gives you control over how ores spawn in Minecraft.…How to Add a Custom Ore Spawn File to MMD OreSpawn LibraryMMD OreSpawn Library reads every .json file it finds inside the orespawn folder and turns each entry into an actual…How to Change Which Dimension an Ore Spawns InBy default an ore entry only applies to the dimension listed in its parent object. To move an ore to a different…How to Fix Ores That Aren't Spawning After Editing JSONIf your edited ore stops appearing entirely, the cause is almost always a JSON syntax error or a bad block name. The…How to Make an Ore Rarer or More CommonTwo fields control how often you actually see an ore: frequency and size . Understanding the difference lets you tune…

Configuration

Every setting in the mod config file, with what it changes.

OptionWhat it does
ore_replaceableAccepts Ores
host_blocksAdditional Host Blocks (comma separated)
discard_air_exposureAir-Exposure Discard
frequencyAttempts / Chunk
available_dimensionAvailable Dimension
biome_idsBiome IDs (comma separated)
biome_paletteBiome Palette
biome_dictionaryBiome Types (comma separated)
quantityBlock Budget
block_idBlock registry ID
node_sizeCluster Node Size
continuityContinuity
formation_continuityContinuity
rock_layer_noiseCyano Layer Reach
rock_layer_thicknessCyano Layer Thickness
geome_sizeCyano Region Size
deep_aquifer_yDeep Aquifer Below Y
patternDeposit Pattern
depth_spreadDepth Spread
dimensionDimension ID
edge_amplitudeEdge Amplitude
edge_irregularityEdge Detail
edge_octavesEdge Octaves
edge_wavelengthEdge Wavelength

See all 76 settings →

Frequently asked questions

What is MMD OreSpawn Library?
It is a library mod that gives you better control over how ores spawn in Minecraft. It works by parsing .json files in the orespawn folder and adding ore generators based on them.
Where does the mod look for its configuration files?
It parses all of the .json files found in the orespawn folder. Each file defines ore generators that get added to the game.
How do I control which dimension an ore spawns in?
Set the "dimension" field in the JSON entry, such as -1 for the Nether. Entries without a dimension field apply to the overworld.
What does the "block" field do in an ore entry?
It specifies the block to generate, using a namespaced ID like "minecraft:quartz_ore". The mod then spawns that block as an ore.

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