Mutator
Attribute randomizer based on logical scaling
Screenshots
About this Mod
Mutator
Attribute randomizer based on logical scalingGameRules
| GameRule | Type | Default | Explanation |
|---|---|---|---|
| attribute_inheritance | Boolean | True | On animal breeding, the baby has a chance to inherit attributes from parents or mutate |
| attribute_infection | Boolean | True | On zombie infection, the infected has chance to inherit random attribute from zombie |
| attribute_preservation | Boolean | True | Preserves attributes on conversion |
| skeletons_use_axe | Boolean | True | Makes skeletons with scale > 1.2 have axe instead of a bow |
| explosion_scaling | Boolean | True | Scales ExplosionRadius of mobs |
| burn_scaling | Boolean | True | Scales burn damage |
| tame_scaling | Boolean | True | Makes animals harder to tame |
| range_scaling | Boolean | True | Scales mob attack/pickup range |
| exp_scaling | Boolean | True | Scales experience |
| mutation | Boolean | True | If mobs should have mutation |
| size_partitioning | Integer | 4 | Used for getting a scale that can fit in the current space. Higher values will give better results but will decrease performance |
| chance | Integer | 25 | Mob mutation chance |
| weirdness | Double | 6.0 | General weirdness that is used for random |
| attribute_positive_multiplier | Double | 1.2 | General scaling for positive attributes |
| attribute_negative_multiplier | Double | 0.5 | General scaling for negative attributes |
External configurations
ignore.json
| Field | Type | Explanation |
|---|---|---|
| reasons | List | SpawnReason values that mutation ignores |
| attributes | List | Attribute identifiers that mutation ignores |
| types | List | EntityType identifiers that ignore mutation |
| conversion | List | EntityType identifiers that ignore attribute_preservation |
scaling.json
| Field | Type | Explanation |
|---|---|---|
| positive | List | Attributes that increase with bigger mob scale |
| negative | List | Attributes that decrease with bigger mob scale |
| lootScaling | Boolean | Enables/disables loot scaling; needs restart to take effect |
most config changes can be applied at runtime with /mutator::reload
Available Versions
How to Install Mutator on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (26.1.2).
Install Mod
Open the mod browser in the dashboard and search for "Mutator". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.1.2, 26.1.1, 26.1 (+2 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Mutator server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (26.1.2). You can switch loaders with one click in the panel.
Is Mutator compatible with fabric?
Mutator officially supports fabric for Minecraft 26.1.2, 26.1.1, 26.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Mutator – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Mutator consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Mutator with just one click on your server.