My Pals

Breeding for passive skills

A Pal holds at most 4 passive skills. Parents carrying exactly the four you want pass all four 10% of the time, or 100% with a Special Cake.

Max passives
4
Normal cake
10%
Special Cake
100%
Two parents and their egg

How an egg gets its passives

  1. Dualith and Blazamut put their passives in one pool

    Pool the parents

    Both parents put their passives in one pool. A passive both have counts once.

  2. The egg takes some passives from the pool

    Roll how many to take

    It takes 1 to 4 from the pool at random. A small pool gives all it has.

  3. The egg can get random passives too

    Add random passives

    It adds 0 to 3 random passives, never past 4 and never a repeat.

Datamined code The chances for each count are game settings. The step images show them as bars.

Details: the weights and where they come from
Passives taken from the parents
TakenChance
1 40%
2 30%
3 20%
4 10%
Random passives added
AddedChance
0 40%
1 30%
2 20%
3 10%

The weights are game settings. The order of the steps comes from a disassembly of the Early Access game.

We infer that breeding draws its random passives from the game's general passive lottery.

The Special Cake rule

  • Pool of 4 100% The egg is a copy of the pool, with no room for a random one.
  • Pool of 5 20% It still takes 4, picked at random from the pool.
  • Pool under 4 All It takes the whole pool, and random passives may fill the rest.

Game data The Special Cake sets the number taken from the parents to 4. It helps most when the parents carry only what you want.

When the cake hurts

From a pool of four, a normal cake gives only Artisan and Workaholic 2.1% of the time and the Special Cake never does.

Worked examples

  • Parent A
    Artisan
    Parent B
    none
    Wanted
    Artisan
    Normal cake
    100%
    Special Cake
    100%
  • Parent A
    Artisan
    Parent B
    Workaholic
    Wanted
    Artisan Workaholic
    Normal cake
    61%
    Special Cake
    100%
  • Parent A
    Artisan Musclehead
    Parent B
    Workaholic Hard Skin
    Wanted
    Artisan Workaholic
    Normal cake
    26%
    Special Cake
    100%
  • Parent A
    Artisan Workaholic
    Parent B
    Diet Lover
    Wanted
    Artisan Workaholic Diet Lover
    Normal cake
    30%
    Special Cake
    100%
  • Parent A
    Artisan Workaholic
    Parent B
    Diet Lover Serious
    Wanted
    Artisan Workaholic Diet Lover Serious
    Normal cake
    10%
    Special Cake
    100%
  • Parent A
    Artisan Workaholic Musclehead
    Parent B
    Diet Lover Serious
    Wanted
    Artisan Workaholic Diet Lover Serious
    Normal cake
    2.1%
    Special Cake
    20%
  • Parent A
    Artisan Workaholic Musclehead
    Parent B
    Diet Lover Serious Hard Skin
    Wanted
    Artisan Workaholic Diet Lover Serious
    Normal cake
    0.7%
    Special Cake
    6.7%

The chance the egg has every wanted passive, from the same code as the passive calculator. Passives a species always carries are left out.

Full table, with "only wanted" odds

"All wanted" means the egg has every wanted passive, maybe with others. "Only wanted" means it has nothing else.

Chance per egg to get the wanted passives
Parent A Parent B Wanted Normal cake, all wanted Normal cake, only wanted Special Cake, all wanted Special Cake, only wanted
Artisan none Artisan 100% 40% 100% 40%
Artisan Workaholic Artisan, Workaholic 61% (1 in 1.7) 24% 100% 40%
Artisan, Musclehead Workaholic, Hard Skin Artisan, Workaholic 26% (1 in 3.9) 2.1% 100% 0%
Artisan, Workaholic Diet Lover Artisan, Workaholic, Diet Lover 30% (1 in 3.3) 12% 100% 40%
Artisan, Workaholic Diet Lover, Serious Artisan, Workaholic, Diet Lover, Serious 10% (1 in 9.8) 10% 100% 100%
Artisan, Workaholic, Musclehead Diet Lover, Serious Artisan, Workaholic, Diet Lover, Serious 2.1% (1 in 48) 2.1% 20% 20%
Artisan, Workaholic, Musclehead Diet Lover, Serious, Hard Skin Artisan, Workaholic, Diet Lover, Serious 0.7% (1 in 142) 0.7% 6.7% 6.7%

Random passives

World Tree only
7
Mutated Pals only
5
Legendary only
6
Other never random
12

85 of the 115 passives can be added at random. The other 30 come only from a parent that has them.

Legend is never added at random. These 6 Pals are born with it, so one must be in the family line.

12 rank 4 passives (Remarkable Craftsmanship, Diamond Body, Swift, Demon God and others) have weight 5 against 100. They show up by chance about 20 times less often than any one common passive.

The four-passive plan

  1. Make two parents

    One parent with two wanted passives and nothing else, the other with the other two.

  2. Use a Special Cake

    Breed those two with it. Every egg gets all four.

  3. Pick any species

    Passive rolls ignore species, so use any pair that hatches the Pal you want.

Find pairs in the reverse calculator. Cakes in general: breeding cakes.

Next step