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modpack

Minecraft RainbowMinecraft modpack for 1.21.1

This modpack is a must-use modpack for playing with Rainbow's server, and it contains some mods with technical elements and better visuals mods.

client and servernewest supported 1.21.1TechnologyAdventureOptimizationLightweight
Latest version
2.0.0
Minecraft
1.20.1 to 1.21.1
Java
Java 21+
Loaders
Forge, NeoForge
Licence
LicenseRef-All-Rights-Reserved
Downloads
1.1k
Updated
2 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Minecraft Rainbow servers

One click and Minecraft Rainbow is installed with the right loader, on hardware built for it.

  • 1.21.1
  • Forge
  • NeoForge
  • One click modpack install
  • Dependencies handled
  • Tuned startup flags
  • 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 Minecraft Rainbow declares support for, newest first, with the Java runtime that version needs.

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.20.1Forge, NeoForge17+declared12 Jun 2023

Download

From Minecraft Rainbow’s own host. Nothing is re-hosted here.

2.0.0release11 Jul 2026

Minecraft Rainbow 2.0.0.mrpack · 0.1 MB · for 1.21.1

Download latest
16fe86fc4d72…
Older versions6
  • 1.1.01 Aug 20241.20.114.9 MB569 downloads6ef1906de099…Get
  • 1.0.926 Jul 20241.20.114.9 MB106 downloads2542f4bc0449…Get
  • 1.0.819 Jul 20241.20.114.1 MB87 downloads971cce86543b…Get
  • 1.0.717 Jul 20241.20.114.1 MB79 downloads5ca3e1230014…Get
  • 1.0.66 Jul 20241.20.114.1 MB95 downloads5450f66c63ba…Get
  • 1.0.54 Jul 20241.20.10.1 MB91 downloads4a50dcaae3a6…Get

Frequently asked

Does Minecraft Rainbow work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Minecraft Rainbow 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 Minecraft Rainbow support?

Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Minecraft Rainbow 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 Minecraft Rainbow support?

Forge, NeoForge. 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 Minecraft Rainbow?

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

What licence is Minecraft Rainbow 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 Minecraft Rainbow?

Use a launcher that imports packs, such as Prism Launcher, the Modrinth App or the CurseForge app, and open the pack file with it. The launcher installs the right loader and mods for you; installing a pack's mods by hand is the error-prone way.

Where do I download Minecraft Rainbow 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.

Re-ConsoleA continued Legacy Console Edition experience, expanded upon with modern Java Edition content and QoL! (An Official Legacy4J Project)MAX FPS: Optimized🚀 MAX FPS WITHOUT UNNECESSARY MODS! Only 16 optimization mods - NOTHING EXTRA! ✅ ALL MAJOR VERSIONS ⚡ INSTALLS ON ANY LAUNCHER! (Guide below)PacktrixPre-packed Official Modpack containing Patrix Resource Pack for easy install using Fabric/Quilt.Simply Optimized ReloadedAn unofficial port of Simply Optimized built to support every major mod loader and stay current with the newest versions of Minecraft.ElixirA well-researched performance & optimization modpack to make the game run smoother! With shader & Fresh Animations support. 26.3 ✔OptimumFuse[1.21.5] [Fabric📜] An open-source modpack that improves the game's performance and visuals, inspired by OptiFine, while staying true to the vanilla Minecraft experience.

Last checked 2 mo ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

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