zzzZombie World
Makes the game only spawn zombies
About this Mod
Zombie World Horde
Zombie World Horde is a small gameplay-focused mod designed to be used alongside a zombie apocalypse–style modpack.
This mod modifies hostile mob behavior in the Overworld to create a more consistent and immersive zombie survival experience.
Features
- Prevents non-zombie hostile mobs from spawning in the Overworld
- Spawns zombies in organized groups or hordes
- Allows configuration of minimum and maximum horde sizes using the
/zwhordecommand
This mod is intended to support a specific playstyle and enhance the overall experience of survival-based gameplay.
Important Notes
This mod is still a work in progress. There are known issues that I have not been able to fully resolve yet and plan to address in future updates.
Known Issues
In some cases, hostile mobs may appear as “ghost” entities. These entities are removed server-side, but the client may fail to immediately recognize their removal.
Update: All reported bugs have been fixed.
Feedback
Feedback and bug reports are always welcome. The mod will continue to be improved over time as issues are identified and resolved.
Available Versions
How to Install zzzZombie World on Your Server
Order Server
Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "zzzZombie World". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11, 1.20.6, 1.20.1
Server-side
✓ RequiredRecommended RAM
6 GB(min. 4 GB)Frequently Asked Questions
zzzZombie World server crashes on startup – what to do?
Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.
Is zzzZombie World compatible with forge?
zzzZombie World officially supports forge for Minecraft 1.21.11, 1.20.6, 1.20.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with zzzZombie World – how to optimize performance?
Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if zzzZombie World consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install zzzZombie World with just one click on your server.