Guides to TerraFirmaCraft and TerraFirmaGreg
Reference pages for planning a TerraFirmaCraft or TerraFirmaGreg world: where each ore forms and in which rock, how deep to dig, where kaolin clay hides, how the anvil’s finishing rules work, and what TerraFirmaGreg’s structures, Beneath and planets hold.
Every number on these pages is read from the same game data the seed map and the forging calculator run on: extracted from TerraFirmaCraft’s source code for TerraFirmaCraft 1.20, and from the modpack itself for TerraFirmaGreg 0.13.8. When the data changes, the guides change with it.
The guides
Ore veins in TerraFirmaGreg
Every overworld ore vein in TerraFirmaGreg: what it yields, how deep it forms, how rare it is, which rocks it needs, and how often the map’s markers for it held ore in a real world.
Ore veins in TerraFirmaCraft 1.20
Every ore vein in TerraFirmaCraft 1.20: Y range, rarity, host rocks, ore grades and surface indicators, plus which veins hold each mineral.
Where to find kaolin clay in TerraFirmaCraft and TerraFirmaGreg
Why kaolin clay is so hard to find, the climate, biomes and heights it needs, and how to find a patch with the map.
Rock layers in TerraFirmaCraft, and the ores each rock holds
The twenty rocks of TerraFirmaCraft and TerraFirmaGreg, how they stack into layers, and which ore veins can form in each one.
How the TerraFirmaCraft anvil works
The eight anvil actions, the target number and the finishing rules, a worked example, and the rules of every item TerraFirmaCraft smiths.
Structures in TerraFirmaGreg: villages, camps, mineshafts and ruins
Every structure TerraFirmaGreg places in the overworld, the Beneath and on the Moon: how far apart they are, and the climate, biomes and ground each one needs.
The Beneath and the planets in TerraFirmaGreg
The ore veins, biomes and structures of TerraFirmaGreg’s Beneath, Moon, Mars, Venus and Glacio, with every vein’s depth, rarity and yield.
How these guides are made
OutCrop’s tools extract the world-generation and recipe data from TerraFirmaCraft’s source code and from an installed TerraFirmaGreg modpack. The map and the forge run on that data, and the build writes these pages from it, so a table here shows exactly what the tools use.
Where a value has been checked against a real world it says so: the TerraFirmaGreg vein tables give each vein’s measured hit rate, the share of the map’s markers for it that held ore in a real TerraFirmaGreg world. Things OutCrop does not know, such as whether a vein is exposed in a cave, are left out rather than guessed. The About page explains what is exact and what is approximate.
Values on this page are read at build time from the same game data the map and the forge calculator use. Found a mistake? Open an issue.
NOT AN OFFICIAL MINECRAFT SERVICE. NOT APPROVED BY OR ASSOCIATED WITH MOJANG OR MICROSOFT.