ModsFinder

Modified Biome Source

by mahmudindev

Modified Biome Source is a server-side library for Fabric, Forge and NeoForge that lets a world generator draw its biomes from configured sources.

FabricForgeNeoForgeServer-side onlyAll rights reserved1.20.1 – 26.2

What it does

Modified biome sources are set up through configuration, and the library can filter the biomes it generates by biome tags. A custom Multi Noise biome source and a custom End biome source are included, so dimension terrain generators can use them. Fabric API is required, and the mods that require this one include TerraBlender, Badlands Biomes Dimension and Forest Biomes Dimension.

Each biome source accepts allow and deny lists, a biome tag field, a mod support setting and a fallback to vanilla biome sources. A configuration needs at least one optional setting besides the fallback. The mod support field has no effect until the matching compatibility mod is installed.

Because the environment is server-side only, players join without installing anything and only the server runs the library. Files target 1.20.1 – 26.2 across Fabric, Forge and NeoForge, with the latest Forge build for 1.20.1 and the latest Fabric and NeoForge builds for 26.2. The code is public, and the code is not open source under a license; all rights are reserved.

Key features

  1. Configurable biome sources

    Biome sources are defined in configuration and can be chained, filtered and adjusted per dimension.

  2. Custom Multi Noise source

    A custom Multi Noise biome source is included for generators that rely on noise-based biome placement.

  3. Custom End source

    A custom End biome source is included, with entries for the End dimension's biome layout.

  4. Biome tag filtering

    Generated biomes can be filtered by biome tags, so only matching biomes are produced.

  5. Allow and deny lists

    Allow, deny and fallback options control which biomes each source may use, with at least one setting required.

Compatibility

Latest build for each game version and loader.

26.x4 of 4 versions with builds
26.20.0.3+26.2Not available0.0.3+26.2
26.1.20.0.3+26.1Not available0.0.3+26.1
26.1.10.0.3+26.1Not available0.0.3+26.1
26.10.0.3+26.1Not available0.0.3+26.1
1.21.x12 of 12 versions with builds
1.21.110.0.3+hotfix+1.21.11Not available0.0.3+hotfix+1.21.11
1.21.100.0.3+hotfix+1.21.9Not available0.0.3+hotfix+1.21.9
1.21.90.0.3+hotfix+1.21.9Not available0.0.3+hotfix+1.21.9
1.21.80.0.3+hotfix+1.21.2Not available0.0.3+hotfix+1.21.2
1.21.70.0.3+hotfix+1.21.2Not available0.0.3+hotfix+1.21.2
1.21.60.0.3+hotfix+1.21.2Not available0.0.3+hotfix+1.21.2
1.21.50.0.3+hotfix+1.21.2Not available0.0.3+hotfix+1.21.2
1.21.40.0.3+hotfix+1.21.2Not available0.0.3+hotfix+1.21.2
1.21.30.0.3+hotfix+1.21.2Not available0.0.3+hotfix+1.21.2
1.21.20.0.3+hotfix+1.21.2Not available0.0.3+hotfix+1.21.2
1.21.10.0.3+hotfix+1.21Not available0.0.3+hotfix+1.21
1.210.0.3+hotfix+1.21Not available0.0.3+hotfix+1.21
1.20.x1 of 1 version with builds
ReleaseBetaAlphaNot available

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

Requirements

Dependencies declared by the latest file for each loader.

Required 1

Fabric APILightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.
Required

Required by 3 mods

Modified Biome Source - TerraBlender1.20.1 – 26.2Badlands Biomes Dimension1.20.1 – 26.2Forest Biomes Dimension1.20.1 – 26.2

How it compares

Full comparison

Lithostitched is server-side only, open source under the MIT License and published for 1.20 – 26.3 on Fabric, Forge and NeoForge. Biolith is also server-side only and open source, under the GNU Lesser General Public License v3.0 only, with files for Fabric, Forge, NeoForge and Quilt covering 1.19.4 – 26.3. Biome2 is server-side only on Forge and NeoForge for 1.20.1 – 1.21.4 and is not open source, under the Apache License 2.0.

ModLoadersGame versionsEnvironmentUpdated
Modified Biome SourceFabric, Forge and NeoForge1.20.1 – 26.2Server-side only2026-07-22
LithostitchedFabric, Forge and NeoForge1.20 – 26.3Server-side only2026-10-14
BiolithFabric, Forge, NeoForge and Quilt1.19.4 – 26.3Server-side only2026-10-12
Biome2Forge and NeoForge1.20.1 – 1.21.4Server-side only2025-04-29

Questions

Does Modified Biome Source need Fabric API?

Yes. Fabric API is listed as a required dependency for the Fabric build, so it must be installed next to this mod.

Does the mod have to be installed on the client?

No. Server owners install it, and players connect with no copy of their own.

Why does the mod support setting seem to do nothing?

The mod support field has no effect unless the matching compatibility mod is installed, so the compatibility mod must be added first.

In the catalog

Modified Biome Source is one of 3,514 Library mods on ModsFinder, and one of 2,348 Library mods for Fabric. 13,894 mods support Minecraft 26.2.

Library mods3,514Fabric modsMods for 26.213,894

More from mahmudindev

All projects
Passengers Portal Fix1.16.5 – 1.20.1World Portal1.20.1 – 26.3Dimension Fixer1.20.1 – 26.3Dimension Link1.20.1 – 26.2More Cat Variants1.20.1 – 1.21.11Beta 1.7.3 Dimension1.20.1 – 26.3

Similar mods

Fabric API1.14 – 26.3Cloth Config API1.14 – 26.3YetAnotherConfigLib (YACL)1.19 – 26.3Architectury API1.16.5 – 26.3Just Enough Items (JEI)1.8 – 26.3Geckolib1.12.2 – 26.3

What the author says

Modified Biome Source add modified biome sources that can be configured. You can use this mod as biome source for your dimension terrain generator.
mahmudindev, on the Modrinth page

Official listing

Owner
mahmudindev
Published
2025-08-16
Updated on Modrinth
2026-07-22
Facts verified
2026-10-15

Tags

CursedLibraryWorld generationUtility
Open on ModrinthCompare