Custom Entity Attributes (CEA)
by ElocinDev
With Custom Entity Attributes, server owners can add attribute modifiers to mobs and bosses globally or only under set conditions such as dimension, biome, difficulty or time of day.
What it does
The mod applies attribute modifiers to entities. A modifier can be made global, or limited to entities in a given dimension, a given biome, a chosen world difficulty or a time window. Each modifier can also carry a percentage chance, so it applies only to a share of the matching mobs, which introduces variation into a world.
Two configuration files control the behavior: a basic one and an advanced one, both documented with examples to build from. Regex support lets a single rule match several entity identifiers at once. Custom Entity Attributes requires Necronomicon API, and on Forge it also needs Connector. Files are published for Fabric and Forge across 1.20.1, 1.20.2, 1.20.3, 1.20.4 and 1.20.5, with 1.0.0 for 1.20.5 as the latest file. It is server-side only, so players join without installing it, and it is released under a custom license and is not open source.
Key features
Global attribute changes
Attribute modifiers can be applied to every mob or to a single boss, raising or lowering its stats.
Condition-based rules
Rules can depend on the dimension, the biome, the world difficulty or the time, so the same mob can behave differently in each area.
Chance-based modifiers
A percentage chance lets only some entities receive extra attributes, adding variety across a population.
Baby mob adjustments
Baby versions of mobs can be made faster and stronger while having less health than their adult forms.
Time-based configuration
Settings can change with the time of day, and regex matching targets several entity identifiers in one rule.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
How it compares
Custom Mob Attributes works on Fabric, Forge and Quilt across 1.20 – 26.3 under a custom license and is not open source. Attribute Backport is a Fabric-only client and server mod for 1.20.1 under All rights reserved. Hunger Attribute targets Forge and 1.20.1 under the MIT License and is open source, and Custom Entity Attributes differs by being server-side only and limited to the 1.20.1 – 1.20.5 range on both loaders.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Custom Entity Attributes (CEA) | Fabric and Forge | 1.20.1 – 1.20.5 | Server-side only | 2024-10-01 |
| Custom Mob Attributes | Fabric, Forge and Quilt | 1.20 – 26.3 | Client and server | 2026-09-28 |
| Attribute Backport | Fabric | 1.20.1 | Client and server | 2025-09-15 |
| Hunger Attribute | Forge | 1.20.1 | Client and server | 2025-07-28 |
Questions
Does Custom Entity Attributes need Necronomicon API?
Do players need to install Custom Entity Attributes?
Does the Forge version need anything extra?
In the catalog
Custom Entity Attributes (CEA) is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 8,981 mods support Minecraft 1.20.5.
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What the author says
Custom Entity Attributes allows you 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. It even includes a percentile chance of the attribute applying, making randomness possible. ...and more!…
Official listing
- Modrinth page
- modrinth.com/mod/cea
- Owner
- ElocinDev
- Published
- 2024-10-01
- Updated on Modrinth
- 2024-10-01
- Facts verified
- 2026-10-15