GameRules

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

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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 doMobAttributePreservation

• 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