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Atzlk MC: Official Modpack Plus+Minecraft modpack for 1.21.1

Official Additional Modrinth Modpack for Atzlk MC Weather SMP w/ Extra Mods

client and servernewest supported release 1.21.1AdventureOptimizationMultiplayer
Latest version
3.9
Minecraft
1.21.1
Loader
NeoForge
Licence
MIT
Downloads
2.7k
Updated
27 d ago
Available on
Modrinth
Space NodeOur hosting

Host Atzlk MC: Official Modpack Plus+ servers

One click and Atzlk MC: Official Modpack Plus+ 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 Plus+ 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 Plus+’s own host. Nothing is re-hosted here.

Most recently published release

3.9release13 Oct 2026

Atzlk MC Official Modpack Plus+ 3.9.mrpack · 4 KB · for 1.21.1 · NeoForge

Download this release
417b7299a820…
Older versions12
  • 3.824 Sept 20261.21.14 KB1bdb14489d2a…Get
  • 3.722 Aug 20261.21.15 KBed08ae45ae37…Get
  • 3.616 Aug 20261.21.14 KBff9d4c10f3aa…Get
  • 3.513 Aug 20261.21.14 KB0fa3324b87c7…Get
  • 3.410 Aug 20261.21.14 KB8d75bcb9d9b2…Get
  • 3.39 Aug 20261.21.14 KB846e6e0b81cf…Get
  • 3.28 Aug 20261.21.14 KBf2138d64a6a2…Get
  • 3.18 Jul 20261.21.17 KB342 downloads557ff54895fc…Get
  • 3.012 Jun 20261.21.145 KB507 downloads8b2566a240a6…Get
  • 1.221 Apr 20261.21.17 KB241 downloads21c1e2726553…Get
  • 1.121 Mar 20261.21.17 KB286 downloadsaf9070169273…Get
  • 1.09 Mar 20261.21.144 KB84 downloads8953b6436cd8…Get

Frequently asked

Does Atzlk MC: Official Modpack Plus+ work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Atzlk MC: Official Modpack Plus+ 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 Plus+ 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 Atzlk MC: Official Modpack Plus+ 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 Atzlk MC: Official Modpack Plus+?

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 Atzlk MC: Official Modpack Plus+ 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 Atzlk MC: Official Modpack Plus+?

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 Atzlk MC: Official Modpack Plus+ 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.

Details from Modrinth, where the author last updated it on 13 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? .