Source-checkedGameplay & overhauls

Agartha

by Policarpo · for Valheim

Every new world hides one Polar Gate in the Deep North. Descend into Agartha: a hollow-earth world under an eternal inner sun, with forests, grass and the ruined crystal city of Shamballa. An easter egg to find.

131Downloads
40d agoLast updated
BepInExLoaders
ThunderstoreSource

About Agartha

From Thunderstore

Every new world hides one Polar Gate in the Deep North. Descend into Agartha: a hollow-earth world under an eternal inner sun, with forests, grass and the ruined crystal city of Shamballa. An easter egg to find.

Agartha

Legends speak of a hollow world beneath the ice at the top of the world, lit by a sun that never sets.

Every new world hides exactly one Polar Gate somewhere in the Deep North: a dark sinkhole ringed by stones, with an ancient doorway. Press E to Descend into Agartha.

Inside Agartha

  • A hollow-earth pocket world: about 250 m across, generated from your world's seed, so every world has its own Agartha. Rolling hills rise into a great bowl under a rock dome.
  • An eternal inner sun: it never gets dark and it never rains, even at night outside.
  • Life: real Meadows and Black Forest trees, bushes, berries, mushrooms, rocks and ore. You can chop, mine and pick them, and they are saved like anywhere else. There is lush grass too.
  • Shamballa: the ruined crystal city of the builders stands on the far side. It has a black-marble plaza, fallen columns, glowing crystal spires, and five runestones that tell the legend of Agartha.
  • Ascend: the doorway near where you arrive takes you back to the gate.
  • No monsters and no loot. It's an easter egg to discover, explore and settle.

Building

Building in Agartha follows the world's Dungeon build setting, exactly like vanilla dungeons:

  • off (the default): explore only
  • on: you can build your hidden base under the inner sun

The ground itself can't be reshaped with the hoe or pickaxe.

Install

  • Install with a mod manager (r2modman or Thunderstore Mod Manager). Requires BepInExPack_Valheim and Jötunn.
  • The server and every player need the mod. The server places the gate when the world is created, and players without the mod are refused.
  • Only worlds created after installing have a Polar Gate.
  • The Deep North is far and freezing, so bring frost resistance and a good ship.

Commands

All commands are cheat commands, exactly like god and spawn: switch on devcommands first (F5 → devcommands). They work in single-player and hosted worlds. On a dedicated server, vanilla Valheim blocks all cheats, so admins need the Server devcommands mod by JereKuusela on their client (the server doesn't need it).

  • agartha_where: where the Polar Gate is in this world.
  • agartha_tp gate|inside: teleport to the gate or into Agartha.
  • agartha_debug: writes state to BepInEx/agartha_debug.txt.

Notes

  • All of Agartha is visible at once under the dome, so grass costs more to render than in the overworld. If your frame rate suffers there, lower the grass setting in the game options.
  • Tools that reset or regenerate locations (genloc, Upgrade World location resets) will place Agartha's trees and rocks a second time.
  • Built for the current Valheim version (Unity 6), BepInEx 5.4 and Jötunn 2.30.

Highlights

From source data

Loaders

Runs on BepInEx.

Footprint

Rated a light load on a server.

Last update

Its author last shipped an update 40d ago.

Agartha on Nxeon

From our catalogue
One-click install
Supported on Nxeon Valheim servers, for BepInEx servers. We download it from Thunderstore, place it, and restart the server.
Server type needed
BepInEx
Server load
light
Smallest plan we suggest
Valheim — 4 GB (4 GB RAM). This follows our own load rating above, not a benchmark.
Latest build
1.0.3, released 2026-09-25

Game versions by loader

LoaderGame versionsNewest
BepInEx

From 4 recorded builds of Agartha.

Recent builds

BuildReleasedGame versionsLoaders
1.0.32026-09-25n/aBepInEx
1.0.22026-09-25n/aBepInEx
1.0.12026-09-25n/aBepInEx
1.0.02026-09-25n/aBepInEx

Dependencies

Declared by the newest build that lists any. Required ones are installed with it on one-click installs.

Run Agartha on a Valheim server

Pick a server or deploy a new one above; it is installed in one click.

What kind of mod it is

From the catalog
Listed on Thunderstore as “Content”

Gameplay & overhauls

New mechanics, content and overhauls that change how the game plays.

Compatibility

Game
Valheim
Loaders
BepInEx
Requires
One-click install needs a BepInEx server.

Verified at the source

  • ✓ThunderstoreOfficial listing, checked 2026-10-01Open ↗
  • ✓AuthorPolicarpo, as published on Thunderstore
  • ✓LicenseNot published by the sourceFree

Agartha, answered

Generated from the mod’s own source data.

Which loaders does it support?

BepInEx.

Is it free?

Yes. Agartha is free to download from Thunderstore.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

NxLabs

Run Agartha on a Valheim server.

Deploy in about a minute from $9.99 a month, then add Agartha in one click.