Menu

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 release 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
4 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.

Most recently published release

2.0.0release11 Jul 2026

Minecraft Rainbow 2.0.0.mrpack · 54 KB · for 1.21.1 · NeoForge

Download this release
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 20241.20.162 KB91 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?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

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. When available, recorded download links go to the source for that release; verify the publisher, filename and any available 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.FPS+ PvP Boost | Ultimate FPS & Combat Client [ Every Version ]Ultra-lightweight FPS boost & PvP modpack for Fabric. Boost FPS on low-end PCs with Sodium optimizations, lower input lag, cleaner visuals, and combat HUD tweaks built for Hypixel Bedwars, Duels, PotPvP & CPVP. Maximize frames and dominate fights.香草精华 Vanilla EssenceFaithful to the origional. Better vanilla experience without any new blocks or mobs

Details from Modrinth, where the author last updated it on 11 Jul 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Not indexed yet. Score 53 against a threshold of 55. The page still exists and is still linked; it simply carries noindex until we hold more.

Is this information wrong or missing something? .