Source-checkedWorld generation

Rainbows & Radium

by ZeenyWeenyMC · for Minecraft

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!

9.3KDownloads
10 mo agoLast updated
LicenseRef-All-Rights-ReservedLicense
Fabric · QuiltLoaders

About Rainbows & Radium

From Modrinth

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!

Important Stuff

-Overview-

_To give you a rough idea of what is included without making you read about every single feature._

  • Deepsteel Bombs can be crafted and customized to ignore armor, damage terrain, prevent healing, and more!
  • 84-slot Uranium Barrels can hold many more items than a chest in just one block of space
  • Polychromite Pearls are enchanted with Infinity, so you will only need one
  • many functional foods like Fairy Bread, Polychromite Apples, and more
  • new combat & utility-oriented Status Effects (offense and defense)
  • Polychromium Totems function as multi-use Totems
  • another EPIC new Music Disc by @TenM

-Images-

_For the descriptions of the pictures, go to the "Gallery" tab._

Items in the mod Some blocks in the mod (Left to right: Polychromite-Infused Sand, Polychromite Ore, Radium Ore, Deepslate Radium Ore, Deepsteel Ore, Block of Radium Sludge, Block of Uranium, Deepsteel Block)

_Shhh... we don't talk about this_ COMPLETELY UNIQUE BLOCKs that are 100% NOT RECOLORS (Radio Campfire, Radio Fire, Block of Uranium, Radio Lantern, Lockable Chest, Uranium Barrel)

Even more blocks (Super TNT, Lockable Chest, Locked Chest, Smooth Stone Pedestal, Quartz Pedestal, Gold Pedestal, Emerald Pedestal) Artificing Table and Artificing Table GUI

-Getting Started-

_A quick explanation of how to locate the content in a Survival playthrough_

Polychromite-Infused Sand and Polychromite Ore will spawn in the desert, Deepsteel Ore will spawn in the Nether, and Radium Ore and Deepslate Radium Ore will spawn in caves and underground. (Check the "Items/Ingredients tab to see how to use the raw materials).

To use most Polychromium items, you will need to find a Quarry, a new structure that spawns in the Desert. They have about the same frequency as Desert Temples, so they shouldn't be too hard to find. In this structure, you can loot chests and brush Suspicious Sand to find a Polychromium Upgrade Smithing Template (along with many other items), which you will need to use in a Smithing Table to upgrade gear.

-My Other Projects-

_These mods may not all be updated to the latest version. All of these mods are owned and maintained by me._

Rainbows & Radium - 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!

Savage Cyclopes - New Cyclops entities can be found across all 3 dimensions. Some are hostile, attacking you with poisonous darts or magic, while others are neutral or passive, bartering with or assisting you in your various adventures. Enticing rewards are granted to those who can defeat them.

Beastly Buggers - Unique and useful items can be obtained by facing new and difficult insects and arachnids, each with a unique spawn location to incentivize exploration. Increasing the challenge of Minecraft in fun and vanilla-friendly ways is the purpose of this mod.

Funky yet Functional - Adds a few silly new items, all of which have their own functionality, including spicy peppers that make you breathe fire, beans that let you fly via flatulence, and so much more!

<iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/c0mvGwGCxEU" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>

Content & Features

Items
Ingredients

Chromite Nuggets (found in six colors: red, orange, yellow, green, blue, and purple) can be obtained by mining Chromite Ore (a sandstone variant found in the desert), with a chance to get 1-3 colors and 1-4 nuggets of each color. They can be combined in a Crafting Table (no specific pattern required) to make Raw Polychromite. This can be smelted into a Dull Polychromite Ingot, which can be combined with a Glow Inc Sac in a Crafting Table to create a Polychromite Ingot. Polychromite-Infused Sand has a chance to replace sand in the Desert, and will drop 1-4 Polychromite Dust. Putting four Polychromite Dust in the crafting table creates a Polychromite Ingot. 4 Polychromite Ingots can be combined with 4 Netherite Ingots to create Polychromium Alloy.

Radium Sludge is dropped from Uranium Ore (and it's Deepslate variant), and 4 can be crafted together to make a Uranium Ingot.

Deepsteel Plates have a chance to be found when brushing Suspicious Sand in a Quarry (A new structure that spawns in the desert).

Disc Fragments can be found by brushing the suspicious sand in Quarries. When 9 are combined in a 3x3 crafting grid, the new Music Disc "Below" by @T_en_M is created.

Tools

Read the full description on Modrinth →

Highlights

From source data

Game versions

Supports 10 Minecraft versions, the newest being 1.21.11.

Loaders

Runs on Fabric and Quilt.

Footprint

Rated a light load on a server.

Rainbows & Radium on Nxeon

From our catalogue
One-click install
Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
Server side
Required on the server
Server type needed
Fabric, Quilt
Server load
light
Smallest plan we suggest
Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
Latest build
1.3.0-1.21.11, released 2026-01-05

Game versions by loader

LoaderGame versionsNewest
Fabric1.21.8 to 1.21.11 (4 versions)1.21.11
Quilt1.21.8 to 1.21.11 (4 versions)1.21.11

From 5 recorded builds of Rainbows & Radium.

Recent builds

BuildReleasedGame versionsLoaders
1.3.0-1.21.112026-01-051.21.8 to 1.21.11 (4 versions)Fabric, Quilt
1.2.3-1.21.10 beta2025-12-011.21.8 to 1.21.10 (3 versions)Fabric, Quilt
1.2.2-1.21.102025-10-301.21.10Fabric, Quilt
1.2.1-1.21.102025-10-261.21.8 to 1.21.10 (3 versions)Fabric, Quilt
1.2.0-1.21.82025-09-221.21.8Fabric, Quilt

Run Rainbows & Radium on a Minecraft server

Pick a server or deploy a new one above; it is installed in one click.

What kind of mod it is

From the catalog
Listed on Modrinth as “Mods”

World generation

Changes or adds to how new terrain, biomes and structures are created.

Runs on your server

From source side support

Modrinth lists Rainbows & Radium as required on the server. Check its Modrinth page to see whether players need it too.

Compatibility

Game
Minecraft
Loaders
FabricQuilt
Runs on
Serverrequired on the server
Game versions
1.21.11 and 9 earlier

Verified at the source

  • ✓ModrinthOfficial listing, checked 2026-10-02Open ↗
  • ✓AuthorZeenyWeenyMC, as published on Modrinth
  • ✓LicenseLicenseRef-All-Rights-ReservedFree

Rainbows & Radium, answered

Generated from the mod’s own source data.

Do my players need to install Rainbows & Radium?

Modrinth lists Rainbows & Radium as required on the server. Check its Modrinth page to see whether players need it too.

Which loaders does it support?

Fabric and Quilt.

Is it free?

Yes. Rainbows & Radium is free to download from Modrinth. Its license is LicenseRef-All-Rights-Reserved.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

NxLabs

Run Rainbows & Radium on a Minecraft server.

Deploy in about a minute from $4.99 a month, then add Rainbows & Radium in one click.