Adding new Slug / Breeding Recipes

The DataAsset

For adding new Slug or Breeding Recipes to Satisfactory Plus, you need to create a new DataAsset of type KAPISugHatchingData the header can be found HERE.

One DataAsset configures a single slug species: its identity, how it’s incubated from an egg, and how it breeds.

Properties

Identifies the slug species and its priority against other slugs.

Property	Type	Description
mSlug	TSubclassOf<UFGItemDescriptor>	The slug item this DataAsset describes.
mEgg	TSubclassOf<UFGItemDescriptor>	The egg item this slug hatches from.
mEggColor	FLinearColor	Display color of the egg. Defaults to FLinearColor::White.
mSlugTier	int32	Priority against other slugs during breeding. Higher tier gets first pick of temp, humidity, day time, and food. Default -1.

Configures the incubator that hatches the egg into a slug.

Property	Type	Description
mHatchDuration	float	Time in seconds to hatch the egg. Default 5.0.
mPowerConsume	float	Power consumption of the incubator. Default 10.0.
mIncubatorTier	uint8	Required incubator tier. Default 1.
bRequireFluid	bool	Whether the incubator also requires a fluid to hatch. Default false.
mPossibleSlugs	TArray<FKAPISlugIncubation>	The breeding recipe list; see FKAPISlugIncubation below.
mTankTier	uint8	Required fluid tank tier. Only used if bRequireFluid is true. Default 1.
mFluidConsume	int32	Fluid amount consumed. Only used if bRequireFluid is true. Default 1000.
mFluidClass	TSubclassOf<UFGItemDescriptor>	The fluid item required. Only used if bRequireFluid is true.
mFluidConsumeTime	float	Time in seconds between fluid consumption ticks. Only used if bRequireFluid is true. Default 2.0.

Configures the breeding cycle once the slug is hatched.

Property	Type	Description
mProductionCountEggs	int	Number of eggs produced per successful breed. Default 1.
mBreedingTime	float	Time in seconds a breeding cycle takes.
mDieTime	float	Time in seconds before the slug dies if left unfed/unbred.
mRequiredFood	TSubclassOf<UFGItemDescriptor>	The food item required to breed.
mFoodConsumePerCycle	int32	Amount of food consumed per cycle. Default 1.
mFoodDuration	float	Time in seconds a single food consumption lasts. Default 2.5.
mComfortableWith	TArray<TSubclassOf<UFGItemDescriptor>>	Other slug species this slug is comfortable being bred alongside.

The slug’s own environmental comfort range, checked during breeding.

Property	Type	Description
mMinHumidity	float	Minimum comfortable humidity. Default 0.2.
mMaxHumidity	float	Maximum comfortable humidity. Default 0.8.
mMinHeat	float	Minimum comfortable temperature. Default 22.0.
mMaxHeat	float	Maximum comfortable temperature. Default 38.0.
mDayTime	EKAPISlugTime	Time of day this slug is comfortable breeding. Default Any.

FKAPISlugIncubation

One entry in mPossibleSlugs is one breeding recipe: which slug can result from incubation, how many, and how likely.

Property	Type	Description
mSlug	TSubclassOf<UFGItemDescriptor>	The slug produced by this recipe entry.
mProductionCount	int	Number of slugs produced. Default 1.
mProbability	float	Base chance (0.01-100) to breed this slug. Default 100.0.
mFixedChanceMultiplier	float	Multiplier added to mProbability on each failed roll, if bShouldUseFixedChance is true. Default 0.1.
bShouldUseFixedChance	bool	Whether the fixed-chance fallback applies. Default true.

Notes

• mSlugTier decides breeding priority between slug species: the higher the tier, the earlier that slug’s temp, humidity, day-time, and food checks are resolved.
• mFixedChanceMultiplier is a pity-timer style fallback: on a failed roll, mFixedChanceMultiplier * mProbability is added to mProbability for the next attempt, provided bShouldUseFixedChance is enabled on that recipe entry.