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Rainbows & RadiumMinecraft mod for 1.21.11

Powerful new ores can be used to make customizable bombs, 128-slot barrels, a modular chest-locking system, Ender Pearls enchanted with Infinity, Paxels, multi-use Totems, and more!

client and servernewest supported 1.21.11AdventureEconomyEquipmentGame Mechanics
Latest version
1.3.0-1.21.11
Minecraft
1.21 to 1.21.11
Java
Java 21+
Loaders
Quilt, Fabric
Licence
LicenseRef-All-Rights-Reserved
Downloads
8.3k
Updated
9 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Rainbows & Radium servers

One click and Rainbows & Radium is installed with the right loader, on hardware built for it.

  • 1.21.11
  • Quilt
  • Fabric
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Rainbows & Radium declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.11Quilt, Fabric21+declared9 Dec 2025
1.21.10Quilt, Fabric21+declared7 Oct 2025
1.21.9Fabric, Quilt21+declared30 Sept 2025
1.21.8Quilt, Fabric21+declared17 Jul 2025
1.21.7Fabric, Quilt21+declared30 Jun 2025
1.21.5Quilt, Fabric21+declared25 Mar 2025
1.21.3Fabric, Quilt21+declared23 Oct 2024
1.21.2Quilt, Fabric21+declared22 Oct 2024
1.21.1Quilt, Fabric21+declared8 Aug 2024
1.21Quilt, Fabric21+declared13 Jun 2024

Download

From Rainbows & Radium’s own host. Nothing is re-hosted here.

1.3.0-1.21.11release5 Jan 2026

rainbowsandstuffmod-1.3.0-1.21.10.jar · 1.9 MB · for 1.21.11, 1.21.10, 1.21.9, 1.21.8

Download latest
98f4254967ef…
Older versions8
  • 1.2.3-1.21.101 Dec 20251.21.10, 1.21.9, 1.21.81.8 MB461 downloads4da6996f395e…Get
  • 1.2.2-1.21.1030 Oct 20251.21.101.8 MB568 downloads8d226424ba8a…Get
  • 1.2.1-1.21.1026 Oct 20251.21.10, 1.21.9, 1.21.81.8 MB198 downloadsba5cca7b6b8a…Get
  • 1.2.0-1.21.822 Sept 20251.21.81.7 MB244 downloads5f9caf5495db…Get
  • 1.1.0-1.21.817 Aug 20251.21.81.7 MB427 downloads3f91b28e4426…Get
  • 1.0.0-1.21.74 Jul 20251.21.71.5 MB370 downloads9bfc2df0972e…Get
  • 1.0.029 Jun 20251.21.51.5 MB415 downloads3fed1f5db4a3…Get
  • 2.0.03 Nov 20241.21.3, 1.21.2, 1.21.1, 1.210.1 MB1.7k downloads66e36f86a011…Get

Frequently asked

Does Rainbows & Radium work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Rainbows & Radium declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Rainbows & Radium support?

Everything the author has declared, from 1.21 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Rainbows & Radium on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does Rainbows & Radium support?

Quilt, Fabric. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Rainbows & Radium?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is Rainbows & Radium under?

LicenseRef-All-Rights-Reserved, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Rainbows & Radium?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Rainbows & Radium safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

Armor HiderHide or adjust the transparency of armor, glint, and offhand items - with full multiplayer sync. No dependencies required.Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)

Details from Modrinth, where the author last updated it on 5 Jan 2026. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .