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Atzlk MC: Official ModpackMinecraft modpack for 1.21.1

Official Modrinth Modpack for Atzlk MC Weather SMP

client and servernewest supported 1.21.1AdventureOptimizationMultiplayer
Latest version
3.1
Minecraft
1.21.1
Java
Java 21+
Loader
NeoForge
Licence
LicenseRef-All-Rights-Reserved
Downloads
3.5k
Updated
25 d ago
Available on
Modrinth
Space NodePartner

Host Atzlk MC: Official Modpack servers

One click and Atzlk MC: Official Modpack 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 Atzlk MC: Official Modpack declares support for, newest first, with the Java runtime that version needs.

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge21+declared8 Aug 2024

Download

From Atzlk MC: Official Modpack’s own host. Nothing is re-hosted here.

3.1release8 Jul 2026

Atzlk MC: Official Modpack v3.1.mrpack · 0.0 MB · for 1.21.1

Download latest
733b2eafeec9…
Older versions5
  • 3.012 Jun 20261.21.10.0 MB1.2k downloads4d16250001df…Get
  • 1.521 Apr 20261.21.10.0 MB553 downloads484e833943ae…Get
  • 1.421 Mar 20261.21.10.0 MB650 downloadse0de0d6b5c7c…Get
  • 1.39 Mar 20261.21.10.0 MB566 downloads835111a69a58…Get
  • 1.26 Mar 20261.21.10.0 MB45 downloads175db7855829…Get

Frequently asked

Does Atzlk MC: Official Modpack work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Atzlk MC: Official Modpack 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 Atzlk MC: Official Modpack 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 loader does Atzlk MC: Official Modpack need?

NeoForge. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Atzlk MC: Official Modpack?

Java 21 or newer, because that is what the newest Minecraft release it supports requires. The requirement comes from the game rather than from the modpack itself.

What licence is Atzlk MC: Official Modpack 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 Atzlk MC: Official Modpack?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the modpack 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 Atzlk MC: Official Modpack safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

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.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.Photon OptimizationMinecraft optimization framework prioritizing performance, simplicity, and compatibility. 1.7.10-26.1.2 across Fabric, Forge, NeoForge, and Quilt!

Last checked 6 d 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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