Mutator

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 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 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