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Cataclysm Dimensions Mod for Minecraft 1.20.1, 1.21.1

Place each structure from the L_Ender 's Cataclysm mod into different dimensions

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Updated 26.10.2026
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Are you annoying by searching cataclysm structures?

This mod place each structure from the Cataclysm mod into different dimensions, with epic terrain. The structure will spawn at (0, 0) in the dimension and only one structure will spawn.

If you want to spawn more structures, you can replace the placement type by datapack or enable the "random_spead" config

Cataclysm Dimensions — screenshot 3

If you want to keep the original generation, you need to enable the "keep structures" config

Cataclysm Dimensions — screenshot 4

Add a default way to enter the dimension.

Cataclysm Dimensions — screenshot 5

You can disable it and choose your own way to enter dimension if you are a modpack author.

Cataclysm Dimensions — screenshot 6

NOTE: the reset dimension if no player is experimental. It's very difficult to delete chunk immediately...

there dimension id:

Cataclysm Dimensions — screenshot 7

If you are using shader, find the dimension.properties then add "cataclysm_dimension:cataclysm_bastion_lost" into the end, add "cataclysm_dimension:cataclysm_infernos_maw", "cataclysm_dimension:cataclysm_souls_anvil" into the nether.

Cataclysm Dimensions — screenshot 8

#--------------------------------------------------------------------------------------------------------------------- #--------------------------------------------------------------------------------------------------------------------- dimension.world0=* dimension.world-1=minecraft:the_nether minecraft:nether cataclysm_dimension:cataclysm_infernos_maw cataclysm_dimension:cataclysm_souls_anvil dimension.world1=minecraft:the_end minecraft:end cataclysm_dimension:cataclysm_bastion_lost

You can also use Global Shaderpack Properties

Cataclysm Dimensions — screenshot 4

add a new placement type : "cataclysm_dimension:spawn_pos_placement".

This will make structure spawn at (0, 0).

Cataclysm Dimensions — screenshot 10

How to install Cataclysm Dimensions

With Millida Launcher

  1. Install Millida Launcher

    The launcher is free: download it at millida.net/launcher and sign in with any nickname.

  2. Click “Install” on this page

    The launcher opens and installs the mod for Minecraft 1.20.1–1.21.1 on Forge or NeoForge automatically.

  3. Launch the game

    A profile with it appears in the launcher: click “Play”.

Manually

  1. Install Forge or NeoForge

    The loader must match the game version of the mod file, for example Minecraft 1.21.1. After installing it, a separate profile appears in your launcher.

  2. Download the file for your version

    In the version list above, pick the file cataclysm_dimension-neoforge1.21.1-1.7.0.jar (296 KB) for your game version and loader.

  3. Put it in the mods folder

    The folder is inside .minecraft (Windows: %appdata%\.minecraft\mods). If it does not exist, create it.

  4. Launch the loader profile

    Open “Mods” in the main menu: Cataclysm Dimensions should be in the list.

Minecraft 1.21.1 runs on Java 21: with a different Java version the game may close right after launch.

Versions

With dependencies

MinecraftLoaderFileDateActions
1.21.1NeoForgecataclysm_dimension-neoforge1.21.1-1.7.0.jar296 KB 4
1.20.1Forgecataclysm_dimension-forge1.20.1-1.6.2.jar149 KB
1.20.1Forgecataclysm_dimension-forge1.20.1-1.5.7.jar192 KB
1.21.1NeoForgecataclysm_dimension-neoforge1.21.1-1.5.5.jar323 KB

FAQ

Which Minecraft versions does Cataclysm Dimensions work on?

There are files for 1.21.1, 1.20.1. The newest is 1.21.1.

Is Cataclysm Dimensions for Forge or Fabric?

There are files for Forge: 1.20.1 and for NeoForge: 1.21.1. There are no files for Fabric: a mod for another loader will not start.

Does Cataclysm Dimensions need other mods?

The author lists no required dependencies: the Forge or NeoForge loader is enough.

Which Java does Cataclysm Dimensions need?

Minecraft 1.21.1 runs on Java 21. If the game closes right after launch, the usual cause is the wrong Java version in the profile settings.

Where can I download Cataclysm Dimensions safely?

On this page: the file cataclysm_dimension-neoforge1.21.1-1.7.0.jar (296 KB) is stored on Millida’s server, with no link shorteners. SHA-1 checksum: ac2a19580991e76d54e15e30f5c93370cdb799b2.

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