Only Zombies Spawn

Only Zombies Spawn is a simple mod that makes zombies the only hostile mob that can spawn.

All other hostile mobs are blocked from spawning, including mobs spawned by mob spawners.
This keeps gameplay straightforward and creates a world where hostile encounters are focused entirely on zombies.

Features

• Only zombies can spawn as hostile mobs
• Prevents all other hostile mobs from spawning naturally
• Prevents all other hostile mobs from spawning from spawners
• Keeps the concept simple and easy to understand
• Designed for players who want a zombie-only survival experience

Supported Versions

• Forge 1.20.1
• NeoForge 1.21.1
• NeoForge 26.1

Notes

• This mod is intended to make hostile mob spawning zombie-only
• Friendly and neutral mobs are not the focus of this mod
• Built for lightweight, easy-to-use gameplay customization

Perfect For

• Zombie-themed survival worlds
• Custom modpacks
• Challenge runs
• Simple hostile mob control