Spawners in vanilla Minecraft are infinite mob factories — set up a farm once and it runs forever. Decaying Spawners changes that. Each spawner has a limited lifespan: once it has spawned enough mobs (or been active long enough), it burns out and stops working permanently.
Configuration
Configuration is loaded from:
config/btwr/decaying_spawners/decaying_spawners.json
| Option | Default | Description |
|---|---|---|
maxMobSpawnCount |
12 |
How many mobs a spawner can spawn before decaying. Set to -1 to disable. |
maxSpawnerTicks |
-1 |
How many active ticks a spawner can run before decaying. Set to -1 to disable. |
excludedSpawners |
[] |
A list of entity IDs whose spawners will never decay. |
Example config:
{
"maxMobSpawnCount": 20,
"maxSpawnerTicks": -1,
"excludedSpawners": [
"minecraft:blaze",
"minecraft:silverfish"
]
}
Changes to the config file take effect the next time you load a world
🙏 Acknowledgment:
This mod ports features from the original Better Than Wolves, created by FlowerChild and currently maintained by the CE Team. Learn more about the original mod here.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as decaying_spawners-fabric-1.21.1-1.0.jar — drop this file into the mods folder
- Download size: 21 KB
- Download link checked 23 Aug 2026 — working
These come from our own check of the pack file, not from the source page.