The Undergarden Wiki & Guide
The community wiki and guide for The Undergarden — recipes, items, tags and mechanics, kept current for every Minecraft version the mod supports.
About this mod

Deep underground, a forgotten land awaits.
Discord: https://discord.gg/zrnMPDM
What is the Undergarden?
The Undergarden is a dark, subterranean world located deep below the bedrock of the Overworld. The flora here has adapted to their conditions and can grow anywhere, independent of light. Strange creatures call these dark lands home, and are plagued by the invasive Rotspawn, monsters originating from a chaotic, mysterious realm.
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Features
- A whole new dimension to explore, build, and survive in
- Over 10 unique entities
- 15 biomes
- Ores that have special properties when made into tools and weapons
- Over 10 music tracks
- Over 10 advancements to guide you on your journey
- 4 special potion effects
- 1 dungeon
And more to come in the future...
How to enter the Undergarden
To enter the Undergarden, you must first craft a Catalyst. You can craft a Catalyst using the recipe below:

Once you have made that, create a frame in the shape of a Nether portal using Stone Bricks or Deepslate Bricks. Activate the Undergarden portal by right clicking the inner bottom of the frame with the Catalyst.

You can also use bricks derived from the Undergarden to create the portal.
Compatibility
Which Minecraft versions and mod loaders the mod supports.
| Loader | MC 26.1.2 | MC 1.21.1 | MC 1.21 | MC 1.20.6 | MC 1.20.4 | MC 1.20.1 |
|---|---|---|---|---|---|---|
| Forge | — | — | — | — | — | ✓ |
| Neoforge | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Recent updates
Latest releases with the author's changelog notes.
- fixed crash regarding virulent on newer neoforge versions
- unhardcoded block stripping to the neo datamap
- fixed virulent fluid interactions with water and lava
- fixed some missing and incorrect recipes
- fixed forgotten minion being unspawnable
- fixed some odd behavior with dreadrock breaking slowdown
- Made Stoneborn trades data driven. The system works very similarly to the new villager trade system introduced in this update.
- moved all animal foods and tempt items to tags
- moved shearing drops to loot tables
- forgotten guardians will no longer despawn in peaceful: they will now enter an inactive state instead, making them invulnerable to any damage.
- renamed spear to javelin, tweaked the
...
- changed mysterious pots to be more resiliant to despawning
- fixed unique weapon abilities only working on player attackers
- small tweaks to froststeel weapon sprites
- added capability support to the infuser (thanks to rexlNico)
- tweaked the utheric infection and gloomgourd overlays
- added pt_br translation (thanks to PrincessStelllar)
- added es_es translation (thanks to Diaburomon)
- Biome distribution has been reworked. Subject to further changes
- Gronglets are now edible, albiet at a dire cost
- Added client config to disable the Utheric Infection overlay
- Added missing lang entries for configs
- Utheric Infection damage now increases over time
- Added more valid portal frame blocks
- Cracked Stone Bricks
- Chiseled Stone Bricks
- Cracked Deepslate Bricks
- Crack
...
- Added modded Shears support for Undergarden block loot tables
- Fixed Forgotten with Forgotten Pickaxes rarely spawning in Catacombs
- Updated some translations
- Dreadrock now only takes forever to mine with the wrong tool if it's in Undergarden
- Tweaked Rogdorium Grove biome colors
- Added special ambient particle to Rogdorium Grove
- New textures for Dreadrock ore blocks
- New Utherium item
...
Gallery








Related mods
Mods in the same category as this one.
Developer resources
Guides
Processes
Every recipe the mod adds, grouped by how it is made.
Structures
Every structure the mod generates, with biomes and placement.
Items
Ancient Chestplate
Ancient Helmet
Ancient Leggings
Ancient Root Boat
Ancient Root Boat with Chest
Ancient Root Door
Ancient Root Hanging Sign
Ancient Root Sign
Blisterberry
Blisterbomb
Blood Globule
Bloody Stew
Blue Mogmoss
Brute Tusk
Bucket of Gwibling
Catalyst
Cloggrum Axe
Cloggrum Battleaxe
Cloggrum Boots
Cloggrum Bucket
Cloggrum Chestplate
Cloggrum Helmet
Cloggrum Hoe
Cloggrum IngotShow all 116 items →Blocks
Amorous Bristle
Ancient Root
Ancient Root Button
Ancient Root Fence
Ancient Root Fence Gate
Ancient Root Planks
Ancient Root Pressure Plate
Ancient Root Slab
Ancient Root Stairs
Ancient Root Trapdoor
Block of Cloggrum
Block of Forgotten Metal
Block of Froststeel
Block of Raw Cloggrum
Block of Raw Froststeel
Block of Regalium
Block of Rogdorium
Block of Utherium
Blood Mushroom
Blue Mogmoss Rug
Boomgourd
Butterbunch
Carved Gloomgourd
Chiseled Depthrock BricksShow all 156 blocks →Frequently asked questions
How do you get to the Undergarden?
The Undergarden is reached through the mod's own portal, built from its materials. It leads to a dark subterranean dimension located deep below the Overworld's bedrock.
What is the Rotspawn?
The Rotspawn are invasive monsters from a chaotic, mysterious realm that plague the Undergarden, so the dimension requires combat readiness alongside exploration.
What is special about the Undergarden's plants?
Its flora has adapted to grow anywhere, independent of light, giving the dark dimension a distinctive glowing landscape you can harvest and build with.
What do you find in the Undergarden?
Over ten unique entities plus the dimension's own metals, materials and glowing blocks to mine, fight through and build with.
Version history
The Undergarden 0.8.14 (MC 1.20.1) → 0.9.6 (MC 1.21.1): 55 recipes added · 4 recipes removed · 54 recipes updated.





