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data pack

AllTheMons x Mega ShowdownMinecraft data pack for 1.21.1

Always wanted to play Mega Showdown with AllTheMons? Well that's the version you have been waiting for! PLEASE read the description!

server onlynewest supported release 1.21.1UtilityAdventureMobsModels
Latest version
v5.0
Minecraft
1.21.1
Works with
Fabric, NeoForge
Licence
LicenseRef-AllTheMons-License-v3.2
Downloads
5.1M
Updated
10 d ago
Available on
Modrinth
Space NodeOur hosting

Host AllTheMons x Mega Showdown servers

Deploy a server with AllTheMons x Mega Showdown already added to the world, on hardware built for it.

  • 1.21.1
  • Data pack
  • Fabric
  • NeoForge
  • One click install
  • Version matched
  • Automatic backups
  • 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 AllTheMons x Mega Showdown declares support for, newest first, with the Java runtime that version needs.

Other data packs
MinecraftThroughJavaEvidenceReleased
1.21.1Data pack, Fabric, NeoForge21+declared8 Aug 2024

Download

From AllTheMons x Mega Showdown’s own host. Nothing is re-hosted here.

Browse 41 indexed releases

For Minecraft 1.21.1

Choose the loader you use before downloading.

  • Fabric, NeoForge

    v5.0 · 16 Oct 2026

    Multiple loaders are listed; verify the file before downloading.

    Choose file on publisher ↗

  • Loader not listed

    v4.0 · 8 Sept 2026 · ATM x MSD [v4.0].zip

    Get release

Most recently published release

v5.0release16 Oct 2026

ATM x MSD [v5.0].jar · 7.4 MB · for 1.21.1 · Fabric, NeoForge

Choose file on publisher ↗
11d737245291…
Older versions24
  • v4.08 Sept 20261.21.17.7 MB96e4b45e57c5…Get
  • v3.7.030 Jul 20261.21.15.7 MB2ded4185a3d7…Get
  • v3.6.18 Jun 20261.21.15.8 MB41404059327d…Get
  • v3.6.027 May 20261.21.15.8 MBc9664bf833e6…Get
  • v3.5.09 Apr 20261.21.15.7 MBedfa186e5991…Get
  • v3.4.018 Mar 20261.21.15.9 MB0ee2bed7e74c…Get
  • v3.3.012 Feb 20261.21.15.8 MB43fbf0e41d29…Get
  • v3.2.127 Jan 20261.21.17.6 MBea848a8c72e9…Get
  • v3.2.026 Jan 20261.21.17.7 MB1e60b7cd1c4d…Get
  • v3.2.0LM26 Jan 20261.21.17.7 MB5fb8c8387d8e…Get
  • v3.1.229 Dec 20251.21.17.8 MBc09724cb95f0…Get
  • v3.1.2LM29 Dec 20251.21.17.8 MB0c7af3ceafde…Get
  • v3.1.18 Dec 20251.21.17.8 MBde2d1c877bed…Get
  • v3.1.1LM8 Dec 20251.21.17.8 MB4a0257a974b3…Get
  • v3.1.07 Dec 20251.21.17.8 MB91f5620847fb…Get
  • v3.1.0LM7 Dec 20251.21.17.8 MBb38d76026d3d…Get
  • v3.0.12 Dec 20251.21.17.9 MB2d4dad0e9a97…Get
  • v3.0.1LM2 Dec 20251.21.17.9 MBde4df501011b…Get
  • v3.0.01 Dec 20251.21.17.9 MBf40affb2cc24…Get
  • v3.0.0LM1 Dec 20251.21.17.9 MBd0f132d9f2fc…Get
  • v2.9.0LM20 Nov 20251.21.18.8 MBf47ca65e7707…Get
  • v2.9.08 Sept 20251.21.18.8 MB52c1eb14303a…Get
  • v2.8.118 Jul 20251.21.18.9 MB281625e544dc…Get
  • v2.815 Jul 20251.21.18.9 MB8b464dc6b738…Get

Dependencies

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

CobblemonRequired. A Pokémon mod for Fabric and NeoForgeCobblemon: Mega ShowdownRequired. Adds Mega Evolution, Z-Moves, Teralization, Dyna/Gigantamax, Ultra Burst & Fusions to Cobblemon!

Frequently asked

Does AllTheMons x Mega Showdown work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version AllTheMons x Mega Showdown 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 AllTheMons x Mega Showdown on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

What does AllTheMons x Mega Showdown need to run?

It declares Cobblemon and Cobblemon: Mega Showdown 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 AllTheMons x Mega Showdown under?

LicenseRef-AllTheMons-License-v3.2, 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 AllTheMons x Mega Showdown?

Data packs install per world: put the downloaded file in that world's datapacks folder and run /reload, or add it when creating the world. No loader is involved. On a server, the world folder lives next to the server jar.

Where do I download AllTheMons x Mega Showdown 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.

TerralithExplore almost 100 new biomes consisting of both realism and light fantasy, using just Vanilla blocks. Complete with several immersive structures to compliment the overhauled terrain.TectonicTerrain shaping brought to new heights, grander and more varied than ever before!Towns and TowersSpice up your world with new villages, pillager outposts, and even new ships!TrekBored of vanilla structure generation? This pack is for you!GeophilicA subtle-ish overhaul of vanilla Overworld biomes! Reworked!Incendium LegacyA nether biome overhaul combined with challenging structures to conquer, unique weapons to obtain, and tricky mobs to defeat.

Details from Modrinth, where the author last updated it on 16 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? .