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Matt's Fat PackMinecraft modpack for 1.21.1

Explore mystical dimensions, conquer legendary bosses, and engineer impossible contraptions.

client and servernewest supported 1.21.1TechnologyAdventureOptimizationCombat
Latest version
0.2.3
Minecraft
1.21.1
Java
Java 21+
Loader
NeoForge
Licence
MIT
Downloads
375
Updated
7 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Matt's Fat Pack servers

One click and Matt's Fat Pack is installed with the right loader, on hardware built for it.

  • 1.21.1
  • 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 Matt's Fat Pack declares support for, newest first, with the Java runtime that version needs.

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge21+declared8 Aug 2024

Download

From Matt's Fat Pack’s own host. Nothing is re-hosted here.

0.2.3beta5 Feb 2026

Matt's Fat Pack 0.2.3.mrpack · 44.8 MB · for 1.21.1

Download latest
6e793cf146b8…
Older versions9
  • 0.2.21 Feb 20261.21.144.8 MB25 downloadsbd1e5ccb0a6a…Get
  • 0.2.126 Jan 20261.21.143.7 MB32 downloadsb7e908b479c7…Get
  • 0.2.023 Jan 20261.21.143.7 MB20 downloadse068a6a5ac82…Get
  • 0.1.53 Jul 20251.21.17.2 MB40 downloads29d25e6eb17d…Get
  • 0.1.411 Jun 20251.21.14.6 MB43 downloads50af422bd0ae…Get
  • 0.1.39 Jun 20251.21.14.6 MB28 downloads17b22712b20e…Get
  • 0.1.28 Jun 20251.21.11.9 MB18 downloadsc8e8037f375d…Get
  • 0.1.16 May 20251.21.12.9 MB32 downloadseefdb26e2ae6…Get
  • 0.1.015 Apr 20251.21.11.5 MB29 downloadsb0c762d47c84…Get

Frequently asked

Does Matt's Fat Pack work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Matt's Fat Pack declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Do I need to install Matt's Fat Pack 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 Matt's Fat Pack support?

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 Matt's Fat Pack?

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 Matt's Fat Pack under?

MIT, 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 Matt's Fat Pack?

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 Matt's Fat Pack 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.Block Railway Engineering: MTR, Create, IR and more!The Full-contents Edition and Fly Edition of the Block Railway Engineering Modpack, including MTR, Create and other basic mods for players to create a railway world.ElixirA well-researched performance & optimization modpack to make the game run smoother! With shader & Fresh Animations support. 26.3 ✔

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.

Is this information wrong or missing something? .