ModsFinder

One Dimension

by Codx

One Dimension, by Codx, merges the Overworld, Nether and End into a single stacked world that players can travel through without portals between separate realms.

FabricForgeNeoForgeServer-side onlyCreative Commons Attribution Non Commercial 4.01.20.1 – 26.2

What it does

Selecting One Dimension when creating a world produces one 1536-block-tall dimension in which the three vanilla realms sit one above another. The Overworld keeps its exact vanilla coordinates, and the height values players already know still apply. Each band has its own biomes, mobs, features and structures, including End cities in the upper part and the dragon fight on a bedrock fountain high above the rest.

Portals inside the stacked world link the Nether and End bands within the same dimension. A Void Gate, an escalating-damage band, sits between the layers with a hard death zone, and operators can tune its hazards. Real Nether lava flows fast across the far band, and vanilla dimension quirks such as beds exploding remain in their bands. Players dig down through the obsidian floor to reach the Nether, or build upward far enough to reach the End.

One Dimension is a server-side only mod: the server runs it and players join without installing it. It is published for Fabric, Forge and NeoForge under Creative Commons Attribution Non Commercial 4.0, which is not open source. It requires CodxLib and Fabric API on every loader, and its latest files target 26.2. Builds cover 1.20.1 – 26.2 across 22 release versions.

Key features

  1. Continuous stacked world

    The Overworld, Nether and End form one continuous world of real stacked terrain, not separate dimensions.

  2. Per-band content

    Each band has its own biomes, mobs, features and structures, including End cities and the Nether fortresses.

  3. Connected portals

    End and Nether portals warp within the stacked world, so travel between bands needs no separate dimension.

  4. Void Gate hazard band

    A band of escalating damage separates the layers and ends in a hard death zone, with hazards operators can tune.

Compatibility

Latest build for each game version and loader.

26.x4 of 4 versions with builds
26.23.1.0+26.2-fabric3.1.0+26.2-forge3.1.0+26.2-neoforge
26.1.23.1.0+26.1.2-fabric3.1.0+26.1.2-forge3.1.0+26.1.2-neoforge
26.1.13.1.0+26.1.1-fabric3.1.0+26.1.1-forge3.1.0+26.1.1-neoforge
26.13.1.0+26.1-fabric3.1.0+26.1-forge3.1.0+26.1-neoforge
1.21.x12 of 12 versions with builds
1.21.113.1.0+1.21.11-fabric3.1.0+1.21.11-forge3.1.0+1.21.11-neoforge
1.21.103.1.0+1.21.10-fabric3.1.0+1.21.10-forge3.1.0+1.21.10-neoforge
1.21.93.1.0+1.21.9-fabric3.1.0+1.21.9-forge3.1.0+1.21.9-neoforge
1.21.83.1.0+1.21.8-fabric3.1.0+1.21.8-forge3.1.0+1.21.8-neoforge
1.21.73.1.0+1.21.7-fabric3.1.0+1.21.7-forge3.1.0+1.21.7-neoforge
1.21.63.1.0+1.21.6-fabric3.1.0+1.21.6-forge3.1.0+1.21.6-neoforge
1.21.53.1.0+1.21.5-fabric3.1.0+1.21.5-forge3.1.0+1.21.5-neoforge
1.21.43.1.0+1.21.4-fabric3.1.0+1.21.4-forge3.1.0+1.21.4-neoforge
1.21.33.1.0+1.21.3-fabric3.1.0+1.21.3-forge3.1.0+1.21.3-neoforge
1.21.23.1.0+1.21.2-fabricNot available3.1.0+1.21.2-neoforge
1.21.13.1.0+1.21.1-fabric3.1.0+1.21.1-forge3.1.0+1.21.1-neoforge
1.213.1.0+1.21-fabric3.1.0+1.21-forge3.1.0+1.21-neoforge
1.20.x6 of 6 versions 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 2

Fabric APILightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.
Required
CodxLibA library with shared functions for all Codx mods.
Required

How it compares

Full comparison

Custom World Height+ is a server-side Fabric mod for 1.21.6 – 26.3 under the CC0 1.0 Universal license, which is not open source. 1:1 Nether is open source under the MIT License, covers 1.20.3 – 1.21.5 and is required on the server while clients may skip it. Higher Nether Max Build Height is open source under CC0 1.0 Universal, but only for 1.20.1.

ModLoadersGame versionsEnvironmentUpdated
One DimensionFabric, Forge and NeoForge1.20.1 – 26.2Server-side only2026-08-30
Custom World Height+Fabric1.21.6 – 26.3Server-side only2026-10-12
1:1 NetherFabric, Forge, NeoForge and Quilt1.20.3 – 1.21.5Server required, client optional2025-05-23
Higher Nether Max Build HeightFabric, Forge and Quilt1.20.1Server required, client optional2023-09-09

Questions

Does One Dimension need CodxLib?

Yes. CodxLib is a required dependency on Fabric, Forge and NeoForge, and Fabric API is also required on Fabric.

Does a player need One Dimension installed to join a server?

No. The mod is server-side only, so only the server needs to run it.

Which game versions does One Dimension support?

Builds cover 1.20.1 – 26.2, and the latest file for each loader targets 26.2.

Can the Void Gate's hazards be changed?

Yes. Operators can tune the Void Gate's hazards, which sit between the stacked bands.

In the catalog

One Dimension is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 13,894 mods support Minecraft 26.2.

World generation mods8,515Fabric modsMods for 26.213,894

More from Codx

All projects
One Block1.20.1 – 26.3CodxLib1.20.1 – 26.3Alex's Mobs Continued1.20.1 – 26.3Chunky Extension1.19.2 – 26.1.2Alex's Caves Continued1.20.1 – 26.3Alex's Mobs Continued Delight1.20.1 – 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

The Nether, the Overworld and the End — stacked into a single dimension. OneDimension adds one new world type. Select "One Dimension" when creating a world and you get all three vanilla realms fused into one literal dimension, stacked by height. No portals to separate dimensions — dig down far enough and you punch…
Codx, on the Modrinth page

Official listing

Owner
Codx
Published
2026-04-29
Updated on Modrinth
2026-08-30
Facts verified
2026-10-15

Tags

Game mechanicsWorld generation
Open on ModrinthCompare