Terralith takes Minecraft's 1.18 massive world generation overhaul, and turns it up to eleven.

Terralith adds over 95 brand new biomes, as well as updating almost every vanilla biome with new and improved features. There are also new terrain types: canyons, shattered biomes, floating islands, deep ocean trenches, and much, much more.
Yellowstone is one of Terralith's staple biomes - a simple and beautiful landscape, based on the real life US National Park. Among the list of realistic biomes are Yosemite Cliffs, Shield, and many more depending on what you're looking for in a biome. Highlands and its variants offer a flat surface to create on - builders can imagine anything from huge mega cities to small simple cottages. Adventurers can explore the breath-taking Volcanic Peaks and discover the beautiful Desert Oases.
While realistic biomes can remind us of the beautiful planet we live on, Terralith offers a plunge into the world of fantasy as well. Adventurers can wander through the purple and mystical Moonlight Grove and Amethyst Rainforest, or climb the unforgiving cliffs of the Scarlet Mountains. If determined, sailers can find the mysterious Mirage Isles, or even the elusive and nostalgic Alpha Islands. Terralith encourages imagination to run wild here.
If you feel the surface is too face, have no fear - custom caves lurk beneath your feet! Similar to Minecraft's Lush Cave, the Underground Jungle is full of foliage, and rarely some old abandoned houses. Other caves, like Infested and Fungal Caves are overgrown with spiders and fungi! If you dig super deep, you could stumble upon a sister to the Deep Dark: the Frostfire Caves are dangerous and menacing. Beware!
To tie all of Terralith's magnificent biomes together are it's structures. The ominous tall Spire pierces the sky in the iciest biomes. Rarely, you can find Fortified Villages in the plains and desert - the villagers have progressed quite far as a society! Finally, if you find yourself lost at night, cold and hungry, you might stumble into the warm protection of the simple Glacial Hut.
Terralith has a suite of official add-ons you can try out. When using the datapack versions of the add-ons, ensure they load above Terralith.
- Remove Stardust Labs Intro Message is mostly self explanitory
- Terralith: No Structures prevents all Terralith structures from generating
- Terralith: Extra Recipes adds a couple useful recipe expansions, such as allowing Diorite, Andesite, and Granite to craft stone tools
- Terralith: ReStoned re-adds the Vanilla generation of Andesite/Diorite/Granite blobs
As of 2.6.0, the mod version of Terralith has a config file. It is located in your client's .config folder under the name terralith.json, or you can edit the config directly in game via Neoforge's mod menu or Fabric's Mod Menu.
- Custom Structures (default: on) - Spawns custom structures, such as Fortified Villages and Mage Towers.
- Fog Tweaks (default: on) - Changes fog distance and color is some biomes, such as swamps and caves.
- Intro Message (default: on) - Shows a toast when creating a new world, giving discord link and warning about difficulties when trying to uninstall.
- Skylands (default: on) - A set of four season-themed biomes generating as sky islands above deep oceans. Disabling prevents them from generating.
- Terrain Slabs (default: on) - In biomes with surface stone, stone slabs will generate to smooth the terrain. Disabling prevents them from generating.
- Vanilla Stone Generation (default: off) - Follows Vanilla behavior and generates small blobs of granite, andesite, and diorite throughout the underground. Terralith replaces this with dedicated cave biomes for each stone type.
- Recipe Changes (default: off) - Allows some items crafted with cobblestone to be crafted with alternate stones, and adds a recipe for converting stone slabs to cobblestone.
As of 2.6.0, the mod version of Terralith adds support for all world types. This means Terralith will respect superflat worlds, and work with the Single Biome, Large Biomes, and Amplified world types. Additionally, Terralith adds two new world types:
- Amplified + Large Biomes (terralith:amplified_large_biomes): Combines the Amplified and Large Biomes into a single world type. It does not look the best, but it is very fun.
- Oops! All Skylands (terralith:all_skylands): Creates a void world that is completely filled in with Skylands, and only Skylands. This world type exists solely for fun.
Optional
Required
Terms for using, modifying and redistributing this product.
08.07.2026 · Modrinth
Screenshots and images from the original Modrinth page.






Published versions and original Modrinth files.
08.07.2026 · 14 718 downloads
08.07.2026 · 3 044 downloads
08.07.2026 · 38 496 downloads
02.07.2026 · 5 614 downloads
02.07.2026 · 1 069 downloads
02.07.2026 · 13 124 downloads
09.06.2026 · 151 450 downloads
Finally, Terralith 2.6.0 has been backported to 1.21.1. This update also includes an assortment of features and bug fixed backported from later versions of Terralith.
- Now depends on Lithostitched
- Now compatible with Superflat, Single Biome, Large Biomes, and Amplified world types
- Added two new world types: Amplified + Large Biomes, and Oops! All Skylands
- Added a config file. It is now possible to toggle the intro message, recipe changes, custom structures, Vanilla stone generation, Skylands, and Terrain slabs
- Edited intro message to warn about uninstallation
- Removed Endermen from Underground Jungle to prevent them from surpassing the mobcap
- Removed Skeletons from Frostfire Caves in lieu of Stray
- Cobblestone in Infested Caves is now Infested Cobblestone
- Added extra purple flowers to Lavendar biomes
- Small tweaks to Autumn and Spring Skylands
- Camels now naturally spawn in desert biomes (to match Vanilla 1.21.5 behaviour)
- Fixed issue where modded structures could spawn underneath Skyland biomes
- Removed Axolotls from incorrect biomes
- Serene Seasons will no longer affect Skyland biomes
- Fixed issue where some trapdoors could be waterlogged in Mage Towers
- Disabled Zombie Sieges in Terralith's rare island biomes
Thanks to Apollo for making this update possible.
09.06.2026 · 71 200 downloads
Finally, Terralith 2.6.0 has been backported to 1.21.1. This update also includes an assortment of features and bug fixed backported from later versions of Terralith.
- Now depends on Lithostitched
- Now compatible with Superflat, Single Biome, Large Biomes, and Amplified world types
- Added two new world types: Amplified + Large Biomes, and Oops! All Skylands
- Added a config file. It is now possible to toggle the intro message, recipe changes, custom structures, Vanilla stone generation, Skylands, and Terrain slabs
- Edited intro message to warn about uninstallation
- Removed Endermen from Underground Jungle to prevent them from surpassing the mobcap
- Removed Skeletons from Frostfire Caves in lieu of Stray
- Cobblestone in Infested Caves is now Infested Cobblestone
- Added extra purple flowers to Lavendar biomes
- Small tweaks to Autumn and Spring Skylands
- Camels now naturally spawn in desert biomes (to match Vanilla 1.21.5 behaviour)
- Fixed issue where modded structures could spawn underneath Skyland biomes
- Removed Axolotls from incorrect biomes
- Serene Seasons will no longer affect Skyland biomes
- Fixed issue where some trapdoors could be waterlogged in Mage Towers
- Disabled Zombie Sieges in Terralith's rare island biomes
Thanks to Apollo for making this update possible.
31.03.2026 · 25 721 downloads
31.03.2026 · 277 237 downloads
31.03.2026 · 61 490 downloads
29.03.2026 · 12 089 downloads
29.03.2026 · 318 050 downloads
29.03.2026 · 596 downloads
27.03.2026 · 9 009 downloads
26.03.2026 · 3 801 downloads
14.03.2026 · 4 441 downloads
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14.03.2026 · 64 480 downloads
16.12.2025 · 76 023 downloads
16.12.2025 · 295 730 downloads
14.10.2025 · 86 491 downloads
14.10.2025 · 316 978 downloads
07.10.2025 · 6 850 downloads
07.10.2025 · 23 082 downloads
30.06.2025 · 57 815 downloads
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20.06.2025 · 6 586 downloads
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06.04.2025 · 36 979 downloads
06.04.2025 · 92 286 downloads
15.01.2025 · 3 551 330 downloads
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04.12.2024 · 152 338 downloads
#terralith:caves biome tag for quickly locating a cave biome03.12.2024 · 25 112 downloads
#terralith:caves biome tag for quickly locating a cave biome29.10.2024 · 15 649 downloads
29.10.2024 · 89 614 downloads
18.09.2024 · 23 547 downloads
First datapack upload for the current latest version of Terralith for 1.21.x! See the corresponding mod version on this Modrinth page for the changelog.
18.09.2024 · 97 126 downloads
First datapack upload for the current latest version of Terralith for 1.20.x! See the corresponding mod version on this Modrinth page for the changelog.
18.09.2024 · 3 276 downloads
First datapack upload for the current latest version of Terralith for 1.19.4! See the corresponding mod version on this Modrinth page for the changelog.
18.09.2024 · 8 224 downloads
First datapack upload for the current latest version of Terralith for 1.19.3! See the corresponding mod version on this Modrinth page for the changelog.
13.09.2024 · 107 799 downloads
07.07.2024 · 152 224 downloads
07.07.2024 · 6 224 025 downloads
(Terralith 1.21 got this update, but was skipped for 1.20.x until now)
- Fixed issue where some Sea Pickles were not properly waterlogged
14.06.2024 · 47 082 downloads
13.06.2024 · 2 412 downloads
Special thanks to Apollo for making this update!
/locate biome terralith:cave/ice_caves doesn't find anything.17.05.2024 · 489 829 downloads
08.05.2024 · 79 575 downloads
c tag usage for wolf variants as agreed upon by Smithed and some other biome modsterralith:underground/witch_hut08.12.2023 · 128 476 downloads
08.12.2023 · 105 784 downloads
This version is for ALL modloaders 1.20.3+
08.12.2023 · 1 026 594 downloads
This is for ALL modloaders 1.20-1.20.2.
07.12.2023 · 1 150 downloads
The long awaited update is here.
- (Re)Added biome tags, which is vastly improve compatibility with other mods on 1.18.2 (hi Ice and Fire!)
- Refactored the Noise Router (hi Tectonic!)
- Migrated the config file from json to toml
07.12.2023 · 1 246 downloads
This version is for Fabric use only. It will ONLY work on 1.20.3 and 1.20.4. This version will be merged with the rest when this Fabric PR is resolved.
no_default_monsters tag for both c and forge07.12.2023 · 3 083 downloads
DO NOT USE THIS VERSION ON FABRIC!
no_default_monsters tag for both c and forge29.10.2023 · 218 590 downloads
freeze_top_layers as well as properly order some features29.10.2023 · 27 273 downloads
freeze_top_layers as well as properly order some features29.10.2023 · 343 567 downloads
freeze_top_layers as well as properly order some features01.10.2023 · 85 860 downloads
Special thanks to Apollo for spending the time on this massive backend update!
Generation speed has been increased a bit (it should be 10-20% faster than before).
Deep cave biome generation has been shifted a bit. Mantle Caves are a bit more common, and the Tuff Caves should once again generate.
24.09.2023 · 11 117 downloads
pack.mcmeta introduced in 1.20.2 (thank you Mojang)27.08.2023 · 54 456 downloads
24.08.2023 · 2 882 downloads
24.08.2023 · 60 880 downloads
24.08.2023 · 4 716 downloads
31.07.2023 · 1 009 downloads
31.07.2023 · 33 252 downloads
21.07.2023 · 18 654 downloads
21.07.2023 · 521 downloads
21.07.2023 · 27 851 downloads
10.07.2023 · 13 911 downloads
Bug fix
- Fixed crash that can sometimes occur with Fabric and music
28.06.2023 · 10 848 downloads
30.05.2023 · 46 022 downloads
WARNING - Take a backup before updating to this version!
WARNING - If updating to this version while using Incendium and/or Nullscape, you must update those versions at the same time!
Super special thanks to CristelKnight for this update!
23.05.2023 · 8 906 downloads
Bug fixes.
- Fortified Desert Village correctly generates in more biomes
- Giant Bee Hive now generates with its bees inside of their nests
- Updated biome colors (WhisperWhite)
23.05.2023 · 21 409 downloads
Bug fixes.
- Fortified Desert Village correctly generates in more biomes
- Giant Bee Hive now generates with its bees inside of their nests
- Updated biome colors (WhisperWhite)
16.03.2023 · 5 791 downloads
Hotfix:
- Typo in structure icons
16.03.2023 · 83 861 downloads
Hotfix:
- Typo in structure icons
16.03.2023 · 259 downloads
Hotfix:
- issue with JSON Parsing Error
15.03.2023 · 384 downloads
Additions
- Frosted Dungeon, which spawns in Frostfire Caves
- New Graveyard, Big, and Barn buildings generate in Fortified Villages
- Surface slimes will spawn in Orchid Swamp and Ice Marsh
- New Terralith-specific biome tags
- biome_colors.json and structure_icons.json for jacobjo's map site
- Biome name translations are included in the mod version by default - translate here
Changes
- Updated license
- Split the underground structures, allowing them to spawn in different biomes and be individually located
- Updated loot tables in Fortified Village (Netheferious)
- Base of White Cliffs looks more natural (Apollo)
- Completely removed Traveller's Maps
Bug Fixes
- Added missing biomes to #terralith:all_terralith_biomes tag
- Fixed feature order cycle with melon patch (Apollo)
- Rocky Mountain biome temperature changed from 1 to 0.3
- Grass Paths no longer float above ravines
- Siberian Taiga and Grove no longer will have rainy patches
15.03.2023 · 431 downloads
Additions
- Frosted Dungeon, which spawns in Frostfire Caves
- New Graveyard, Big, and Barn buildings generate in Fortified Villages
- Surface slimes will spawn in Orchid Swamp and Ice Marsh
- New Terralith-specific biome tags
- biome_colors.json and structure_icons.json for jacobjo's map site
- Biome name translations are included in the mod version by default - translate here
Changes
- Updated license
- Split the underground structures, allowing them to spawn in different biomes and be individually located
- Updated loot tables in Fortified Village (Netheferious)
- Base of White Cliffs looks more natural (Apollo)
- Completely removed Traveller's Maps
Bug Fixes
- Added missing biomes to #terralith:all_terralith_biomes tag
- Fixed feature order cycle with melon patch (Apollo)
- Rocky Mountain biome temperature changed from 1 to 0.3
- Grass Paths no longer float above ravines
- Siberian Taiga and Grove no longer will have rainy patches
23.11.2022 · 18 362 downloads
23.11.2022 · 18 258 downloads
-initial modrinth release for 1.18.2