Mob Fear

A Minecraft Fabric mod that makes mobs react to player dominance. As you hunt and kill mobs, they learn to fear you!

Features

Kill Tracking

The mod tracks how many of each mob type you've killed. Your reputation builds up separately for each hostile mob type.

Hesitation (5+ kills)

After killing 5 or more of a specific mob type, nearby mobs of that type become hesitant:

Move slower (Slowness II effect)
Attack less effectively (Weakness effect)
Display subtle smoke particle effects

Terror (10+ kills)

After killing 10 or more of a specific mob type, those mobs are terrified of you:

When close (within 6 blocks), they freeze in fear (Slowness IV)
When further away, they actively flee from you
They refuse to target you
Display soul particle effects showing their terror

Low Health Vulnerability

When your health drops below 30%:

All nearby hostile mobs sense your weakness
They become more aggressive: 30% faster movement and 50% more damage
They display angry villager particles
This overrides any fear they might have of you

Death Reset

When you die, your dominance fades:

All kill counts reset to zero
Mobs no longer fear you
You must rebuild your reputation from scratch

Mechanics

Threshold	Effect	Visual
5 kills	Hesitation (slow, weak)	Smoke particles
10 kills	Flee behavior	Soul particles
Player < 30% HP	Mob aggression boost	Angry villager particles
Player death	All counts reset	-

Fear effects work within a 16-block radius
Each mob type is tracked separately (killing zombies doesn't affect skeleton behavior)
Works on all hostile mobs

Requirements

Minecraft 1.21.1
Fabric Loader 0.16.0+
Fabric API
Java 21+

Installation

Install Fabric Loader for Minecraft 1.21.1
Download and install Fabric API
Download mob-fear-1.0.0.jar from the releases
Place the JAR file in your mods folder
Launch Minecraft with the Fabric profile

Building from Source

git clone https://github.com/Simplifine-gamedev/mob-fear.git
cd mob-fear
./gradlew build

The compiled JAR will be in build/libs/.

How It Works

The mod uses Fabric's entity events to track when you kill mobs. It stores kill counts per player (by UUID) and per mob type. Every server tick, it checks nearby hostile mobs and applies appropriate effects based on your kill count for that mob type and your current health percentage.

Status effects are used for the speed/damage modifications:

Slowness for hesitation/freeze effects
Weakness for reduced attack power
Speed for fleeing behavior

Attribute modifiers are used for the aggression boost when the player is at low health.

Tips

Focus on one mob type to quickly build up fear
Be careful when your health is low - mobs will sense your weakness
Don't die if you want to maintain your dominance!
The fear system makes farming specific mobs easier over time

License

MIT License - Feel free to use, modify, and distribute.

Mob fear