ModsFinder

Regions Unexplored

by Apollo

Regions Unexplored changes how the Overworld and Nether are generated, adding 64 new biomes and a set of new blocks and items to explore.

FabricForgeNeoForgeQuiltClient and serverMIT LicenseOpen source1.18.2 – 26.1.2

What it does

Terrain generation in the Overworld and Nether is reworked in many places, so new regions appear across existing worlds as well as new ones. The 64 added biomes come with their own blocks and items, giving each region a distinct look and set of resources to find.

The mod is a Fabric, Forge, NeoForge and Quilt project published for 1.18.2 – 26.1.2, with files for 26.1.2 on the beta channel. Both sides need it, so the server and every player install it. It requires Fabric API, Lithostitched and TerraBlender, and Cloth Config API is optional. The code is open source under the MIT License.

Key features

  1. 64 new biomes

    The mod adds 64 biomes that spread across the Overworld and the Nether.

  2. New blocks and items

    Blocks and items introduced with the biomes give each new region its own materials to gather and build with.

  3. Reworked generation

    Overworld and Nether terrain generation is changed in several ways, altering where biomes and features appear.

  4. Biome exploration

    Each new region can be reached by travelling through the world, so players find unfamiliar terrain on their own routes.

Compatibility

Latest build for each game version and loader.

26.x3 of 3 versions with builds
26.1.20.7.0+beta2-fabric-26.1Not available0.7.0+beta2-neoforge-26.1Not available
26.1.10.7.0+beta2-fabric-26.1Not available0.7.0+beta2-neoforge-26.1Not available
26.10.7.0+beta2-fabric-26.1Not available0.7.0+beta2-neoforge-26.1Not available
1.21.x2 of 2 versions with builds
1.21.10.6.2-fabric-21.1F-0.5.6.1+1.21.10.6.2-neoforge-21.1Not available
1.21A-0.5.6.1+1.21F-0.5.6.1+1.21N-0.5.6.1+1.21Not available
1.20.x4 of 4 versions with builds
1.20.4A-0.5.6+1.20.4F-0.5.6+1.20.4Not available0.5.5+1.20.4
1.20.20.5.5+1.20.20.5.5+1.20.2Not available0.5.5+1.20.2
1.20.1A-0.5.6+1.20.1F-0.5.6+1.20.1Not available0.5.5+1.20.1
1.200.5.3.3+1.20.10.5.1+1.20.1Not available0.5.3.3+1.20.1
1.19.x2 of 2 versions with builds
1.19.40.4.1+1.19.40.4.1+1.19.4Not availableNot available
1.19.20.4.1+1.19.20.5.3+1.19.2Not availableNot available
1.18.x1 of 1 version with builds
1.18.2Not available0.4.1_1+1.18.2Not availableNot available
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 2

Fabric APILightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.
Required
LithostitchedLibrary mod with new configurability and compatibility enhancements for worldgen
Required

Required by 16 mods

Macaw's Regions Unexplored1.18.2 – 1.21.1Farmer's Cutting: Regions Unexplored1.20.1 – 1.21.1Regions Unexplored: Expansion1.20.1 – 1.21.1Vanilla Backport x Regions Unexplored1.20.1NiftyCarts x Regions Unexplored1.20.1Dynamic Trees - Regions Unexplored1.20.1 – 1.21.1

Use cases

Exploring new terrain

Players who want new biomes to find in familiar worlds can install the mod on an existing survival save.

Adventure maps

Map makers who want varied regions in custom worlds can use the added biomes as a base.

Who it’s for: Players who want new biomes and resources in the Overworld and Nether, and server owners who want the same regions on a multiplayer server.

How it compares

Full comparison

Simple Structures: Caves is a server-side structure mod that works with Fabric, Forge, NeoForge and Quilt for 1.19.2 – 26.3 under the MIT License, so players can join without installing it. Grim kingdoms: Lost structures & ruins Vanilla Edition adds structures instead of biomes, is server required with client optional, and is covered by All rights reserved.

ModLoadersGame versionsEnvironmentUpdated
Regions UnexploredFabric, Forge, NeoForge and Quilt1.18.2 – 26.1.2Client and server2026-08-06
Simple Structures: CavesFabric, Forge, NeoForge and Quilt1.19.2 – 26.3Server required, client optional2026-09-27
Grim kingdoms: Lost structures & ruins Vanilla EditionFabric, Forge, NeoForge and Quilt1.19 – 26.3Server required, client optional2026-07-27

Questions

Does Regions Unexplored need Lithostitched?

Yes. Lithostitched is required, along with Fabric API and TerraBlender, so all three must be installed alongside the mod.

Must the server have Regions Unexplored installed?

Yes. The server and every player need the mod installed.

Which loader should a player choose for 26.1.2?

Fabric and NeoForge both have 26.1.2 files on the beta channel, while the latest Forge file is for 1.21.1.

In the catalog

Regions Unexplored is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 15,189 mods support Minecraft 26.1.2.

World generation mods8,515Fabric modsMods for 26.1.215,189

More from Apollo

All projects
Lithostitched1.20 – 26.3Tectonic1.18.2 – 26.3Abridged1.20.1 – 26.2Improved Village Placement1.20.1 – 26.2Reintegrated: Chipped1.20 – 1.21.1Trimmable Tools1.19.4 – 26.2

Similar mods

Biomes O' Plenty1.7.10 – 26.3Cobblemon1.19.2 – 1.21.1Terralith1.18.2 – 26.3YUNG's Better Nether Fortresses1.18.2 – 26.1.2Dungeons and Taverns1.19 – 26.3Yeetus Experimentus1.18.2 – 26.3

What the author says

Regions Unexplored is a biome mod that overhauls the generation of the overworld and nether in many ways. With 64 new biomes and a plethora of new blocks and items, there's plenty of unique regions out there waiting for you to explore them! The mod currently lacks a wiki or full up-to-date biome list, but you can ask…
Apollo, on the Modrinth page

Official listing

Owner
Apollo
Published
2023-05-02
Updated on Modrinth
2026-08-06
Facts verified
2026-10-15

Tags

World generationAdventureDecoration
Open on ModrinthCompare