Cataclysm Z

Name: Cataclysm Z
Price: 5.2 EUR
Author: Unknown

the end has already come — you’re just late

by Unknown

987 Downloads

0 Followers

neoforgeforgeMC 1.21.1challengingcombatquests

Rent Cataclysm Z Server

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About this Modpack

CATACLYSM Z

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

2.0

Coming soon... Alpha has already been released but doesn't contain the full experience, I'm still working to make an enjoyable zombie apocalypse experience. It takes a lot of time to make everything work and to design mechanics so be patient!!

Developed by Froggy Studio

Available Versions

Cataclysm Z 1.0.0release

MC 1.20.1forge773 downloads

March 30, 2026

How to Set Up a Cataclysm Z Server

Order Server

Choose at least 4 GB RAM (6 GB recommended for Cataclysm Z). Based on player count: per 5 players.

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "Cataclysm Z" and click "Install". The neoforge loader and Minecraft 1.21.1 are configured automatically.

Start Server & Play

Start the server – all mods are loaded automatically. Share the server IP with friends and play together!

Frequently Asked Questions

Cataclysm Z server crashes or won't start – what to do?

Most common causes: insufficient RAM or wrong neoforge loader. Check latest.log for "OutOfMemoryError" → increase RAM to at least 6 GB. For "Mixin" or "ClassNotFoundException" errors: modpack version and loader don't match. With Mado Hosting, loader and Minecraft version are auto-configured on modpack install – preventing most startup issues.

How much RAM does a Cataclysm Z server really need?

Minimum 4 GB, recommended 6 GB for stable performance. per 5 players. Important: Minecraft modpacks need more RAM than vanilla – plan extra per additional player. With Mado Hosting, you can scale RAM up live at any time without data loss (from €5.2/month).

Can I add custom mods to Cataclysm Z without conflicts?

Yes, but check compatibility: only use mods for the same loader (neoforge) and same Minecraft version (1.21.1). Common issues: ID conflicts with recipe mods and incompatible coremod versions. The Mado dashboard mod browser only shows compatible mods and warns about known conflicts.

Cataclysm Z server lagging – performance tips

1) Increase RAM to 6 GB+. 2) Reduce server view-distance to 8 (server.properties). 3) Pre-generate chunks with the "Chunky" plugin. 4) Use /spark profiler to check which mods consume the most tick time. With Mado Hosting, all servers run on NVMe SSDs with dedicated CPU cores – eliminating hardware as a bottleneck.