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Integrated CatalcysmMinecraft mod for 1.21.1

Overhauling L_Ender's Cataclysm structures with integration

server onlynewest supported release 1.21.1AdventureMobsWorldgen
Latest version
1.0.6+1.21.1-neoforge
Minecraft
1.20.1 to 1.21.1
Java
Java 21+
Loaders
Forge, NeoForge
Licence
LicenseRef-All-Rights-Reserved
Downloads
290.6k
Updated
8 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Integrated Catalcysm servers

One click and Integrated Catalcysm is installed with the right loader, on hardware built for it.

  • 1.21.1
  • Forge
  • NeoForge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • 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 Integrated Catalcysm declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.20.1Forge, NeoForge17+declared12 Jun 2023

Download

From Integrated Catalcysm’s own host. Nothing is re-hosted here.

Most recently published release

1.0.6+1.21.1-neoforgerelease25 Mar 2026

integrated_cataclysm-1.0.6+1.21.1-neoforge.jar · 4.9 MB · for 1.21.1 · NeoForge

Download this release
010a5b17f3c1…
Older versions1
  • 1.0.5+1.20.125 Mar 20261.20.14.8 MB281.6k downloads7deeb07aaef9…Get

Frequently asked

Does Integrated Catalcysm work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Integrated Catalcysm 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 Integrated Catalcysm support?

Everything the author has declared, from 1.20.1 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 Integrated Catalcysm on the client or the server?

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

Which platform or loader does Integrated Catalcysm support?

Forge, 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 Integrated Catalcysm?

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 Integrated Catalcysm 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 Integrated Catalcysm?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod 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 Integrated Catalcysm 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.

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Details from Modrinth, where the author last updated it on 25 Mar 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? .