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data pack

Cobblemon Radical ChangesMinecraft data pack for 1.21.1

This adds all the edits from the popular rom hack Pokemon Radical Red into your game!

server onlynewest supported release 1.21.1Game Mechanics
Latest version
6.0+mod
Minecraft
1.21 to 1.21.1
Works with
Fabric, NeoForge
Licence
CC-BY-SA-4.0
Downloads
16.0k
Updated
10 d ago
Available on
Modrinth
Space NodeOur hosting

Host Cobblemon Radical Changes servers

Deploy a server with Cobblemon Radical Changes 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 Cobblemon Radical Changes 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
1.21Data pack, Fabric, NeoForge21+declared13 Jun 2024

Download

From Cobblemon Radical Changes’s own host. Nothing is re-hosted here.

For Minecraft 1.21.1

Choose the loader you use before downloading.

  • Fabric, NeoForge

    6.0+mod · 22 Oct 2026

    Multiple loaders are listed; verify the file before downloading.

    Choose file on publisher ↗

  • Loader not listed

    6.0 · 22 Oct 2026 · Cobblemon Radical Changes 6.0.zip

    Get release

Most recently published release

6.0+modrelease22 Oct 2026

cobblemon-radical-changes-6.0.jar · 2.7 MB · for 1.21.1, 1.21 · Fabric, NeoForge

Choose file on publisher ↗
404b702b27d3…
Older versions15
  • 6.022 Oct 20261.21.1, 1.211.0 MB69fb4464a815…Get
  • 5.0+mod23 Apr 20261.21.12.7 MB2.1k downloads89ca8ee58c59…Choose file on publisher ↗
  • 5.023 Apr 20261.21.11.0 MB245 downloads286eb80f4f0a…Get
  • 4.2+mod31 Jan 20261.21.12.8 MB2.8k downloads8678a053cbd2…Choose file on publisher ↗
  • 4.231 Jan 20261.21.11.1 MB334 downloadsef3e4adfa7a3…Get
  • 4.1+mod8 Dec 20251.21.12.8 MB3.4k downloadse6c6e57aca10…Choose file on publisher ↗
  • 4.129 Nov 20251.21.11.1 MB892 downloadsd190614fad83…Get
  • 4.022 Nov 20251.21.11.3 MB514 downloadsd9c36b35e4d2…Get
  • 3.2.019 Jul 20251.21.11.1 MB1.9k downloads20279568a5ba…Get
  • 3.1.216 Jul 20251.21.11.1 MB93 downloadsf136e888b022…Get
  • 3.1.114 Jul 20251.21.11.1 MB67 downloads1c41fc127833…Get
  • 3.111 Jul 20251.21.11.1 MB98 downloadsc9f18f99e8e2…Get
  • 3.026 Jun 20251.21.11.1 MB327 downloads50cf97c231dc…Get
  • 2.0.05 Jun 20251.21.10.9 MB373 downloads37d2b30cd7d3…Get
  • 1.025 May 20251.21.188 KB415 downloadsa36369e2d0c5…Get

Dependencies

What Cobblemon Radical Changesdeclares 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 Cobblemon Radical Changes work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Cobblemon Radical Changes 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 Cobblemon Radical Changes support?

Everything the author has declared, from 1.21 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 Cobblemon Radical Changes on the client or the server?

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

What does Cobblemon Radical Changes 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 Cobblemon Radical Changes under?

CC-BY-SA-4.0, 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 Cobblemon Radical Changes?

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 Cobblemon Radical Changes 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.Towns and TowersSpice up your world with new villages, pillager outposts, and even new ships!TectonicTerrain shaping brought to new heights, grander and more varied than ever before!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 22 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? .