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Radium Mod para Minecraft 1.20.1, 1.21.1

Radium es un fork no oficial de "Lithium" de CaffeineMC, hecho para funcionar con Forge Mod Loader.

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Actualizado 29.09.2026

What is Radium?

An unofficial fork of Lithium by CaffeineMC, on Forge

Canary

Canary basically just disables some important Lithium optimizations, besides Canary is a hardfork and upgrading to upstream is slow, we act differently.

Modpack Permissions

This is a free and open-source project; you can include it in your mod pack as long as you provide attribution!

Common Questions

  • For any other questions, please contact our discord!

Cómo instalar Radium

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 radium-mc1.21.1-0.13.1+git.4994e83.jar (732 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: Radium should be in the list.

On a server

  1. A server on Forge or NeoForge

    The mod only works on a server with the same loader and game version, for example 1.21.1.

  2. File goes into the server’s mods folder

    Stop the server, put the mod file into the mods folder and start the server again.

  3. Or use the “To hosting” button

    On Millida Hosting, the button at the top of the page uploads the file to your server and restarts it for you.

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

Versiones

Con dependencias

MinecraftCargadorArchivoFechaAcciones
1.21.1NeoForge1.21.1732 KB 6
1.21.1NeoForge1.21.1732 KB
1.21.1NeoForge1.21.1732 KB
1.21.1NeoForge1.21.1731 KB
1.20.1Forge, NeoForge1.20.1697 KB 7
1.20.6NeoForge1.20.6666 KB
1.20.5NeoForge1.20.5664 KB
1.20.5NeoForge1.20.5664 KB

Qué necesita para funcionar

  • Dependencyincompatible

FAQ

Which Minecraft versions does Radium work on?

There are files for 1.21.1, 1.20.6, 1.20.5, 1.20.1. The newest is 1.21.1.

Is Radium for Forge or Fabric?

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

Does Radium need other mods?

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

Do players need to install Radium?

No. Radium works on the server side: it is installed on the server only, and players do not need to download anything.

Which Java does Radium 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 Radium safely?

On this page: the file radium-mc1.21.1-0.13.1+git.4994e83.jar (732 KB) is stored on Millida’s server, with no link shorteners. SHA-1 checksum: 9e4d01da859e98cfba4ee18604aaa7cb1211f67d.

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Autor: Asek3Licencia: LGPL-3.0-onlyCódigo fuente

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