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Cataclysm Z project artwork

Modrinth · Minecraft modpack

Cataclysm Z

the end has already come — you’re just late

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Cataclysm Z release should I use?

Updated 4 months ago
Latest stable file Cataclysm Z 1.0.0
Game version 1.20.1
Loader Forge

Cataclysm Z 1.0.0 is a complete pack release for 1.20.1 with Forge. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. Could not safely read this pack file.

Pack setup

How should I set up Cataclysm Z for players and a server?

Use Cataclysm Z 1.0.0 as the pack version. Install the pack as its own launcher instance. The creator’s listing does not name a separate server file, so check the release notes before setting up a dedicated server. Do not upload the ordinary client folder blindly.

Client instance Install Cataclysm Z 1.0.0
Dedicated server setup Match Cataclysm Z 1.0.0
Pack loader Forge

A pack is a matched client and server setup, not one mod with an install-side label. Keep its release, loader, manifest and overrides together.

What are the server requirements for Cataclysm Z?

Cataclysm Z 1.0.0. Change the pack release and its contents or setup may change too.

Could not safely read this pack file

The selected pack release is Cataclysm Z 1.0.0. That file is for Minecraft 1.20.1 with Forge. We could not safely count the mods in this release. The creator’s listing does not name a separate server file. Check their notes before using one, and do not upload an ordinary client folder or rebuild the pack mod by mod. A file count cannot tell us the right RAM, CPU or storage; size the server for the players and world you actually run.

About this project

What kind of pack is Cataclysm Z?

CATACLYSM

When the sirens stopped, the world was already gone.
Cities fell silent. Streets filled with the sound of footsteps that weren’t human.
Now, there’s no rescue, no hope — only survival.

This is THE CATACLYSM, a hardcore survival modpack inspired by Project Zomboid, where every minute alive is earned. Forget everything you know about peaceful Minecraft — hunger, infection, fear, and exhaustion will be your new reality.

WHY THERE ARE NO UPDATES:

I'm currently focused on other projects and don't feel like updating this mod pack right now. Maybe I'll improve it in the future and make it more fun and stable, but not now. I don't like how this mod pack is right now, and you probably don't either. Sorry, but the truth is, there are much better zombie mod packs out there than mine.

Credits:

Project description from Modrinth.

Pick your setup

Cataclysm Z by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

1 available setups

Made local changes? Try them in a copied instance before touching a world you care about.

Recent files

Cataclysm Z versions and loaders

2 of 2 releases match

Looking for an older file? The official Modrinth project page is in Resources.