zzzZombie World
zzzZombie World changes the Overworld so that only zombies spawn there, grouped into hordes that players can size with a command.
What it does
On the Overworld, the mod blocks most hostile mobs from spawning and makes zombies the only hostile mob that appears naturally. Zombies arrive in organized groups, and the zwhorde command sets the minimum and maximum horde sizes. Hostile mobs that still show up in some cases appear as ghost entities, and entities removed on the server can linger on a client until it reconnects.
Built as a light, gameplay-centred addition, it is intended to sit beside a zombie apocalypse style modpack. It changes hostile mob behavior in the Overworld to support a survival playstyle with more consistent zombie encounters. Other dimensions are not described as changed by the mod.
zzzZombie World is built for Forge and is published for 1.20.1 – 1.21.11, with files for 1.20.1, 1.20.6 and 1.21.11. The server and every player need the mod installed. The code is All rights reserved and is not open source.
Key features
Zombie-only spawns
Hostile spawning on the Overworld is limited to zombies, so other hostile mobs do not appear naturally.
Zombie hordes
Zombies spawn in organized groups, and the size of each group can be set between a minimum and a maximum.
Horde size command
The zwhorde command configures the minimum and maximum horde sizes while the game runs.
Overworld behavior changes
Hostile mob behavior in the Overworld is adjusted to produce more consistent zombie encounters.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Zombie survival modpacks
The mod suits a zombie apocalypse style modpack, where zombies should be the main threat in the Overworld.
Survival servers
Server owners who want a single hostile mob type can run the mod and set horde sizes with zwhorde.
Who it’s for: The mod suits players and server owners who want zombies to be the only hostile mob in the Overworld and want control over horde sizes.
How it compares
Zombie Players is a Forge mod for 1.20.1, released under the MIT License, and it runs on client and server. Expensive Zombies is a Forge mod for 1.20.1 – 1.20.6, released under All rights reserved, and it runs on client and server. Only Zombies Spawn is a server-side only mod for Fabric, Forge and NeoForge, open source under the MIT License, and it covers 1.18.2 – 26.2, so players can join without installing it.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| zzzZombie World | Forge | 1.20.1 – 1.21.11 | Client and server | 2026-02-10 |
| Zombie Players | Forge | 1.20.1 | Client and server | 2025-10-01 |
| Expensive Zombies | Forge | 1.20.1 – 1.20.6 | Client and server | 2026-09-02 |
| Only Zombies Spawn | Fabric, Forge and NeoForge | 1.18.2 – 26.2 | Server-side only | 2026-07-08 |
Questions
Does zzzZombie World need to be installed on both sides?
Which loader does zzzZombie World use?
How are horde sizes changed?
In the catalog
zzzZombie World is one of 8,515 World generation mods on ModsFinder, and one of 5,058 World generation mods for Forge. 19,862 mods support Minecraft 1.21.11.
Similar mods
What the author says
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.
Official listing
- Modrinth page
- modrinth.com/mod/zzzzombie-world
- Owner
- sinisteralien
- Published
- 2026-02-10
- Updated on Modrinth
- 2026-02-10
- Facts verified
- 2026-10-15