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William Wythers' Expanded Ecosphere

This Fabric / Forge mod soughts to re-create the vanilla overworld in a way that makes a more realistic and atmospheric world.


In the 1.19 update to this mod I have gone far beyond what I ever did before, adding close to 200 new biomes to make a world infinitely more immersive than any of this mod's earlier iterations. With such a large scope, there will surely be areas where refinement is needed. If you see any such places, please give me your feedback in the comments below or even better on Discord.

Where is WWOO?

We decided to split WWOO in two distinct parts:

  • Expanded Ecosphere: This mod includes new biomes and builds upon the old 1.19/1.20 WWOO.
  • WWOO: This new project is focused on overhauling the vanilla biomes and is inspired by the style of the old 1.16/1.17 WWOO.

You can find the WWOO project here.

Features Expanded Ecosphere

  • Large Biomes! Because of some problems with world presets, you should not use the vanilla world presets. Instead use the forceLargeBiomes option, found in the WWOO config.
  • A config menu is available if you install Cloth Config and on fabric also Mod Menu.
  • The overworld isn't piglin safe. (On datapack it is, so that the Hoglins which can spawn in the overworld don't mutate to Zoglins)
List of all Biomes Expanded Ecosphere also changes Vanilla biomes. But those aren't listed here.
Ancient Copper Beech Forest
Ancient Emerald Beech Forest
Ancient Golden Beech Forest
Ancient Moss Forest
Ancient Mossy Swamp
Ancient Oak Swamp
Ancient Taiga
Andesite Crags
Aspen Crags
Autumnal Birch Forest
Autumnal Crags
Autumnal Flower Forest
Autumnal Forest
Autumnal Forest Edge
Autumnal Plains
Autumnal Swamp
Ayers Rock
Badlands Canyon
Badlands Desert
Badlands River
Bamboo Jungle Canyon
Bamboo Jungle Highlands
Bamboo Jungle Swamp
Bamboo Swamp
Berry Bog
Birch Swamp
Birch Taiga
Black Beach
Black River
Boreal Forest Red
Boreal Forest Yellow
Cactus Desert
Calcite Caverns
Calcite Coast
Coastal Mangroves
Cold Island
Cold Plains
Cold Stony Shore
Cool Forest
Cool Forest Edge
Cool Plains
Cool Stony Canyons
Cool Stony Peaks
Crimson Tundra
Danakil Desert
Deep Dark Forest
Deep Dark Incursion
Deep Desert
Deep Desert River
Deep Icy Ocean
Deep Snowy Taiga
Deep Underground
Deepslate Shore
Desert Beach
Desert Island
Desert Lakes
Desert Pinnacles
Desert River
Dripleaf Swamp
Dry Savanna
Dry Tropical Forest
Dry Tropical Grassland
Eucalyptus Deanei Forest
Eucalyptus Jungle
Eucalyptus Jungle Canyon
Eucalyptus Salubris Woodland
Eucalyptus Woodland
Flooded Jungle
Flooded Rainforest
Flooded Savanna
Flooded Temperate Rainforest
Flowering Pantanal
Forbidden Forest
Forest Edge
Forested Highlands
Frigid Island
Frozen Island
Fungous Dripstone Caves
Giant Sequoia Forest
Glacial Cliffs
Granite Canyon
Gravelly Beach
Gravelly River
Harvest Fields
Highland Plains
Highland Tropical Rainforest
Huangshan Highlands
Humid Tropical Grassland
Ice Cap
Icy Crags
Icy Ocean
Icy River
Icy Shore
Icy Volcano
Jacaranda Savanna
Jade Highlands
Jungle Canyon
Jungle Island
Jungle River
Kwongan Heath
Lantern River
Lapacho Plains
Larch Taiga
Lichenous Caves
Lichenous Dripstone Caves
Lush Dripstone Caves
Lush Fungous Dripstone Caves
Lush Shroom Caves
Maple Mountains
Mediterranean Island
Mediterranean Island Thermal Springs
Mossy Caves
Mossy Dripstone Caves
Mud Pools
Mushroom Caves
Mushroom Island
Old Growth Taiga Crags
Old Growth Taiga Swamp
Outback Desert
Phantasmal Forest
Phantasmal Swamp
Pine Barrens
Red Desert
Red Rock Canyon
Sakura Forest
Salt Lakes Pink
Salt Lakes Turquoise
Salt Lakes White
Sand Dunes
Sandy Jungle
Savanna Badlands
Savanna Basaltic Incursions
Savanna River
Scrub Forest
Snowy Bog
Snowy Canyon
Snowy Fen
Snowy Peaks
Snowy Thermal Taiga
Snowy Tundra
Sparse Bamboo Jungle
Sparse Eucalyptus Jungle
Sparse Eucalyptus Woodland
Spring Flower Fields
Spring Flower Forest
Stony Canyon
Subtropical Forest
Subtropical Forest Edge
Subtropical Grassland
Taiga Crags
Tangled Forest
Temperate Island
Temperate Rainforest
Temperate Rainforest Crags
Thermal Taiga
Thermal Taiga Crags
Tibesti Mountains
Tropical Beach
Tropical Forest
Tropical Forest Canyon
Tropical Forest River
Tropical Grassland
Tropical Island
Tropical Rainforest
Tropical Volcano
Tsingy Forest
Volcanic Chamber
Volcanic Crater
Warm Birch Forest
Warm Stony Shore
Waterlily Swamp
Windswept Jungle
Wistman Woods
Wooded Desert
Wooded Savanna

Questions, or need more information? Check out the GitHub!

External resources

Project members





Technical information

Client side
Server side
Project ID