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Custom Entity Attributes (Modpack Utils Series)

Change entity attributes globally, per dimension, biome, difficulty, or time. With % chances too!
by ElocinDev
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5,288,658 downloads
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Updated Jun 30, 2026
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Banner of CEA

 

What's CEA?

Custom Entity Attributes allows to add attribute modifiers to entities. Either globally or based on various conditions, such as the dimension the entity is in, the biome, world's difficulty, time, and more. Including a percentile chance of the attribute applying, making randomness possible.

 

Want this but for items? Check out Custom Item Attributes (CIA)

 

With this mod, you can:

- Make any mob or boss stronger, or weaker.

- Make entities have different attributes in a specific dimension or biome

- Make entities have a small chance of having extra attributes, giving some variation to all entities

- Make baby versions of mobs be faster and stronger but have less health

and more! It's all up to your creativity, as attributes are really powerful!

 

Requires Necronomicon 1.6.0+

Also requires Connector in Forge

 

⭐ Features ⭐

 

  • Basic & Advanced Config. You can either use the basic config, or go all in with the advanced features!
  • Regex Support. Want to edit the attributes of multiple entities at once, or even ALL entities? You can!
  • Apply Chances. Apply each attribute modifier with a chance, for example add 20% chance of mobs having 10% more max HP!
  • Time Based Config.  Want to make mobs stronger at night? Slower at day? Up to you!
  • Per Dimension Config. With CEA you can make all mobs from a specific dimension stronger, or weaker!
  • Per Biome Config. Feel like that one biome needs to have something extra? Why not make monsters stronger there?
  • Per DIfficulty Config. Spice up things further by adding attributes depending on the difficulty, allowing to nerf or buff and adjust stats at your liking!
  • Default Health entity spawns with. Some entitites might spawn with less health than their max, but CEA can change that!

 

🧾 Configs 🧾

Both configs are fully documented and provide examples for you to base them from!

Basic

 

Advanced

 

Fabric 1.21.X | v1.1.0
MC 1.21, 1.21.5, Fabric, 1.21.8, Client, 1.21.4, 1.21.3, 1.21.7, 1.21.1, 1.21.6, Server, Quilt, 1.21.2
Release 2025-08-08 Get
CEA v1.0.0 | MC 1.20.X
MC 1.20.2, Fabric, Client, 1.20.3, 1.20.1, Forge, 1.20.4, Server, Quilt
Release 2024-10-01 Get

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