Mob Spawner Tweaks

Fully configurable mob spawners for Fabric. Change spawn delay, spawn count, activation range, nearby mob cap, and more to tune farms and server balance.

by PruntyUtility

Fabric

Loaders: Fabric
Downloads on Modrinth: 1.8K
Followers on Modrinth: 4
versions: 12
Updated: February 16, 2026Feb 16
Published: in 2026

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At a glance

Runs on Fabric

For Minecraft 1.21–1.21.11

Works on either side — install it in the game, on the server, or both

Latest version — 1.0.0+mc1.21.11 from February 16, 2026

Requires Fabric API

License MIT — free

Where it's needed

In gameoptionalOn serveroptional

Works both in the game and on the server — install where you need it

Game versions1.21–1.21.11

Configurable Spawners Plus

Control how mob spawners behave without datapacks, command blocks, or messy workarounds.

Configurable Spawners Plus lets you adjust the most important spawner settings in one simple config file, making it ideal for survival servers, custom packs, farm balancing, and admin-controlled gameplay tweaks.

What it does

Change minimum and maximum spawn delay
Change spawn count per cycle
Change spawn range
Change required player range
Change maximum nearby entities before the spawner pauses

Why use it

Speed up or slow down mob farms
Balance survival progression
Reduce lag from overactive spawners
Make exploration structures more dangerous or more forgiving
Tune vanilla gameplay without custom command setups

Config options

Config file: config/configurable-spawners-plus.json

spawn_delay_min
spawn_delay_max
spawn_count
spawn_range
max_nearby_entities
required_player_range

Server/client

Works in singleplayer and multiplayer
Server-side friendly
Clients do not need the mod installed when used on a server

Requirements

Fabric Loader
Fabric API

FAQ

How to install Mob Spawner Tweaks?

Install Fabric for your Minecraft version, download Mob Spawner Tweaks for the same version and loader, put the file into the mods folder and launch the game with the loader profile.

Which Minecraft versions does Mob Spawner Tweaks support?

Mob Spawner Tweaks has builds for Minecraft 1.21–1.21.11.

Is Mob Spawner Tweaks needed on the server?

Works on either side — install it in the game, on the server, or both

License and source

MIT Licensefree to use and share with credit to the author

Original — Modrinth↗Files unchanged, verified with SHA-512Is this your mod? For rights holders