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SpectrumMinecraft mod for 1.21.1

A full-feature minecraft mod about harnessing the powers of color

client and servernewest supported release 1.21.1AdventureEquipmentDecorationFood
Latest version
1.12.9-1.21.1-neo
Minecraft
1.18.1 to 1.21.1
Java
Java 21+
Loaders
Quilt, NeoForge, Fabric
Licence
LGPL-3.0-only
Downloads
291.6k
Updated
3 d ago
Available on
Modrinth
Space NodeOur hosting

Host Spectrum servers

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

  • 1.21.1
  • Quilt
  • NeoForge
  • 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 Spectrum declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Quilt, NeoForge, Fabric21+declared8 Aug 2024
1.20.1Fabric, Quilt, NeoForge17+declared12 Jun 2023
1.19.2NeoForge, Fabric, Quilt17+declared5 Aug 2022
1.18.2Quilt, NeoForge, Fabric17+declared28 Feb 2022
1.18.1Fabric, Quilt, NeoForge17+declared10 Dec 2021

Download

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

Browse 42 indexed releases

For Minecraft 1.21.1

Choose the loader you use before downloading.

  • NeoForge

    1.12.9-1.21.1-neo · 30 Sept 2026 · spectrum-1.12.9-1.21.1-neo.jar

    Get NeoForge

  • Fabric

    1.10.6-1.21.1-fabric · 9 Sept 2026 · spectrum-1.10.6.jar

    Get Fabric

Most recently published release

1.12.9-1.21.1-neorelease30 Sept 2026

spectrum-1.12.9-1.21.1-neo.jar · 95.0 MB · for 1.21.1 · NeoForge

Download this release
3e16ec10b963…
Older versions24
  • 1.12.8-1.21.1-neo29 Sept 20261.21.194.9 MB7ab32ebe8bd6…Get
  • 1.12.7-1.21.1-neo12 Sept 20261.21.194.9 MBcf95eb7e74ce…Get
  • 1.12.6-1.21.1-neo9 Sept 20261.21.194.9 MB8a9a7ddf36f5…Get
  • 1.10.6-1.21.1-fabric9 Sept 20261.21.186.2 MBce68a20cac0a…Get
  • 1.12.5-1.21.1-neo18 Aug 20261.21.187.0 MB9505143ba602…Get
  • 1.12.4-1.21.1-neo17 Aug 20261.21.187.0 MB450f873cc097…Get
  • 1.12.3-1.21.1-neo16 Aug 20261.21.187.0 MB791458387606…Get
  • 1.12.2-1.21.1-neo11 Aug 20261.21.184.5 MBdc094351f5ee…Get
  • 1.12.1-1.21.1-neo4 Aug 20261.21.184.5 MBb0195c13f673…Get
  • 1.12.0-1.21.1-neo2 Aug 20261.21.184.5 MBed68949e2568…Get
  • 1.11.9-1.21.1-neo31 Jul 20261.21.184.5 MB00b0aa75df41…Get
  • 1.11.8-1.21.1-neo4 May 20261.21.184.1 MBbfe34d7a3668…Get
  • 1.10.5-1.21.1-fabric25 Apr 20261.21.186.1 MBabb827ce2da1…Get
  • 1.11.6-1.21.1-neo20 Apr 20261.21.184.1 MBb09377050db3…Get
  • 1.11.4-1.21.1-neo3 Apr 20261.21.184.1 MB81da86a0e623…Get
  • 1.11.3-1.21.1-neo1 Apr 20261.21.184.1 MB0a5dca246abc…Get
  • 1.11.2-1.21.1-neo28 Mar 20261.21.184.1 MBcd626263ff94…Get
  • 1.10.4-1.21.1-fabric19 Mar 20261.21.186.1 MB6191f55a594f…Get
  • 1.11.1-1.21.1-neo19 Mar 20261.21.184.1 MB81a182e08132…Get
  • 1.11.0-1.21.1-neo18 Mar 20261.21.184.1 MB19df07d2bd03…Get
  • 1.8.1317 Mar 20261.20.183.7 MB8e5e0354c988…Get
  • 1.9.3-1.21.1-neo16 Mar 20261.21.184.1 MB51fa08e85ac6…Get
  • 1.9.2-1.21.1-neo16 Mar 20261.21.184.1 MBb0aad571e3eb…Get
  • 1.9.1-1.21.1-neo15 Mar 20261.21.183.9 MB485059f33a71…Get

Dependencies

What Spectrumdeclares it needs, from the author’s own release metadata. A required one has to be installed alongside it or it will not load.

Fabric APIRequired. Lightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.Cloth Config APIRequired. Configuration Library for Minecraft ModsCurios APIRequired. A flexible and expandable accessory/equipment API for users and developers.TrinketsRequired. A data-driven accessory modModonomiconRequired. Modonomicon is an in-game documentation mod inspired by Thaumcraft's Thaumonomicon and Patchouli, and aims to provide the best of both, with some unique flavors.RevelationaryRequired. Data Driven Block and Item Revelation system. Discover as you go!

Frequently asked

Does Spectrum work on Minecraft 1.21.1?

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

Everything the author has declared, from 1.18.1 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 Spectrum 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 Spectrum support?

Quilt, NeoForge, 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 Spectrum?

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 does Spectrum need to run?

It declares Fabric API, Cloth Config API, Curios API, Trinkets, Modonomicon and Revelationary as required, so those have to be installed alongside it or it will not load. Each one is linked in the dependencies section above.

What licence is Spectrum under?

LGPL-3.0-only, 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 Spectrum?

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 Spectrum 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.

BookshelfAn open source library for other mods!GeckoLibA 3D animation library for entities, blocks, items, armor, and more!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.

Used by

2 projects list Spectrum as a required dependency.

Spectral DecorationsA Spectrum addon adding more colorful, decorative blocksSpectrumJEIAn addon to Spectrum that adds JEI support.

Details from Modrinth, where the author last updated it on 28 Oct 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .