ModsFinder

Xaero WorldGen

by th1s.aVa

Xaero WorldGen makes chunks that Voxy WorldGen generates in the distance appear on the map, so the map shows terrain the player has not walked near.

FabricClient and serverMIT LicenseOpen source1.21.11

What it does

Voxy WorldGen generates distant chunks automatically while a player moves through a world. With Xaero WorldGen installed, those chunks are read into the map, which fills in from the generated terrain. Installing the mod on a Fabric client for Minecraft 1.21.11 is enough to enable this, and the server side runs alongside it.

The mod is open source under the MIT License, with a public source repository and issue tracker. The server and every player need the mod installed. The current version has a known issue where large black chunks can appear on the map; re-entering the save and moving the affected area restores them.

Voxy WorldGen is required, because the mod reads the chunks it produces. Files are published for Fabric only, for Minecraft 1.21.11.

Key features

  1. Distant terrain on the map

    Chunks generated by Voxy WorldGen at a distance are drawn on the map without the player visiting them.

  2. Automatic chunk reading

    Generated chunks are read into the map as they are created, so the map fills in while the player explores.

  3. Known rendering issue

    Large black chunks can appear in the current version; re-entering the save and moving to the area clears them.

Compatibility

Latest build for each game version and loader.

No stable releases
Every published file is a beta or alpha build.
1.21.111.0.1
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

How it compares

Full comparison

Xaero Map Addition is a client-side only Fabric mod for 1.14.4 – 1.19, released under the Mozilla Public License 2.0 and open source. Voxy WorldGen is a client and server mod for Fabric and NeoForge covering 1.21.1 – 26.2, under a custom license that is not open source, and it is the chunk source that Xaero WorldGen depends on.

ModLoadersGame versionsEnvironmentUpdated
Xaero WorldGenFabric1.21.11Client and server2026-05-21
Xaero Map AdditionFabric1.14.4 – 1.19Client-side only2022-06-11
Voxy WorldGenFabric and NeoForge1.21.1 – 26.2Client and server2026-08-03

Questions

Does Xaero WorldGen need Voxy WorldGen?

Yes. Voxy WorldGen is required, since Xaero WorldGen reads the distant chunks that it generates.

Does the server need Xaero WorldGen?

Yes. A server running it needs every connecting player to have it too.

Why do some chunks show as black on the map?

The current version has a known issue with large black chunks. Re-entering the save and moving to the affected area restores them.

In the catalog

Xaero WorldGen is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 19,862 mods support Minecraft 1.21.11.

Optimization mods3,545Fabric modsMods for 1.21.1119,862

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Official listing

Owner
th1s.aVa
Published
2026-05-11
Updated on Modrinth
2026-05-21
Facts verified
2026-10-15

Tags

AdventureOptimizationTechnologyWorld generation
Open on ModrinthCompare