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CustomMobSpawns

Transform your Minecraft world with fully customizable mobs! Create powerful bosses, enhanced variants, and unique encounters with simple JSON configurations.
by AtPoe
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1,793 downloads
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Updated Jul 6, 2026
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Adventure and RPG Mobs Server Utility Utility & QoL

CustomMobSpawner allows you to create powerful custom mob variants that automatically apply to naturally spawned mobs, spawner mobs, and spawn egg mobs. Transform ordinary creatures into unique encounters with custom equipment, enhanced stats, special abilities, and more!

Features:

Comprehensive Mob Customization:

  • Equipment & Armor: Give mobs custom weapons, armor, and tools with configurable drop chances
  • Enhanced Stats: Modify health, damage, speed, defense, knockback resistance, and more
  • Custom Names & Boss Bars: Create named mobs with health bars for epic encounters
  • NBT Support: Add enchanted equipment with custom NBT data
  • Potion Effects: Apply permanent or timed effects like strength, regeneration, invisibility
  • Custom Drops: Configure special loot with drop chances and NBT data

Advanced Spawn Conditions:

Make custom mobs that only spawn when specific conditions are met:

  • Dimension Requirements: Restrict spawns to specific dimensions
  • Biome Requirements: Limit spawns to certain biomes
  • Light Level Control: Set minimum/maximum light levels for spawning
  • Weather Requirements: Spawn only during rain, storms, or clear weather
  • Time Requirements: Limit spawns to day or night
  • Altitude Restrictions: Control spawning based on Y-level

    Special Behaviors & Abilities:
  • Fire/Fall/Explosion Immunity: Make mobs immune to various damage types
  • Teleportation: Mobs that teleport when hurt
  • Explosive Death: Mobs that explode when killed
  • Regeneration: Healing over time capabilities
  • Movement Control: Prevent movement or attacks
  • Visual Effects: Glowing, invisibility, custom scaling, particle effects

User-Friendly Management:

Simple JSON Configuration: Easy-to-edit configuration files
Auto-Generated Examples: Comes with example configurations to get you started
Hot Reload: Use /cms reload to apply changes without restarting
In-Game Commands: List configurations and get detailed information
Comprehensive Documentation: Detailed README file with all available options


Commands:

/cms reload - Reload all mob configurations
/cms list - Show all loaded custom mob configurations
/cms info <mobName> - Get detailed information about a specific configuration


Configuration:

All customizations are configured through simple JSON files in config/CustomMobSpawner/Mobs/.
The mod automatically generates example files and a comprehensive README to help you get started.
For complete documentation and advanced examples, refer to the README.txt file generated in your config/CustomMobSpawner/ directory.

 

Example Json File:

{
  "mobID": "minecraft:zombie",
  "spawnRate": 25.0,
  "customName": "§4Elite Zombie",
  "hasBossBar": true,
  "helmet": "minecraft:netherite_helmet",
  "weapon": "minecraft:netherite_sword",
  "weaponNBT": "{Enchantments:[{id:\"sharpness\",lvl:5}]}",
  "extraHealth": 40.0,
  "extraDamage": 10.0,
  "potionEffects": [
    {
      "effect": "minecraft:strength",
      "amplifier": 1,
      "duration": 999999
    }
  ]
}

 

Discord server: Here

 

Terms of use:

 You are welcome to include this mod in any modpack

 

 You may not re-release this mod as your own

 

CustomMobSpawn-1.0.jar
MC Client, 1.20.1, Forge, Server
Release 2025-10-09 Get

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