Mutation and Cake Lab
Pool the passives your parents can pass down, choose the ones you want, and see the per-egg odds and how many eggs it takes to hatch the pal you are after.
Mutation constants are still being verified against the 1.0 game files. The passive inheritance simulator below uses parent passives only.
Step 1: What are you breeding?
Pick the pal you are aiming for. The target does not change the odds; it is used to check that your two parents actually produce it and to link its full breeding guide.
Step 2: Who are the parents?
Choose the two pals you will breed. Their innate passives seed the pool in step 3.
Pick both parents to see the pal they produce.
Step 3: Build the passive pool
The pool is every passive that can land on the egg. Parent innate passives are already in it; add any extra passives your real parents carry so the odds match your setup.
Step 4: Choose the passives you want
Mark the passives you actually want on the child. The odds panel shows how likely they all land and how many eggs that takes.
Add passives in step 3 (or pick parents that carry them) to start.
Cake bonus
Data pendingCakes raise mutation odds and can add passive slots. The exact 1.0 cake values are being verified, so the cake bonus is disabled and the numbers below cover passives only.
Egg odds
Assume the child inherits
The exact 1.0 passive-inheritance odds are being verified, so pick the slot count that matches your breeding setup. The math below is exact for that assumption.
Pick at least one passive you want to see the per-egg odds and how many eggs it takes.
Odds count only your chosen passives landing in the inherited set; random extra passives the game can roll on top are ignored, so these figures are a conservative lower bound.
Frequently asked questions
How do mutations work when breeding in Palworld?
A mutation is a rare roll during breeding that can change a child pal, giving it a different look or an edge over a plain hatch. The exact 1.0 mutation rates are being verified against the game files, so this lab currently focuses on the passive-skill odds you can compute exactly.
What do breeding cakes do?
A cake is required to run the breeding farm, and certain cakes are meant to improve mutation and inheritance outcomes. The precise 1.0 cake values are still being confirmed, so the cake bonus is disabled here and the odds shown cover passive inheritance only.
How are passive skills passed to a bred pal?
A child inherits a subset of the passives carried by its two parents. This simulator pools the parent passives, lets you assume how many passive slots the child rolls, and returns the exact odds that the specific passives you want all land, plus how many eggs that takes on average.
How many copies does condensing a pal take in Palworld 1.0?
Palworld 1.0 condensed a pal to its maximum rank with 48 copies in total, as stated in the 1.0 patch notes. A fully condensed pal reaches its highest work-suitability rank, which is why farming a specific pal by breeding is worthwhile.