Checked against Palworld v1.0.3 · verified 2026-08-25 · Data status · Sources · Methodology
Breeding mechanics
A Pal in Palworld v1.0.3 can carry at most 4 passive skills at once, and this dataset holds 115 of them. 85 can be rolled by an egg, no per-passive inheritance flag is sourced, so the standard parent-to-child rule applies, and 46 Pals are born with a slot already spent — which is why a build that fits on paper can still be impossible.
Palworld v1.0.3 has 115 passive skills in this dataset, and a Pal can carry at most 4 of them at once. That cap is the whole reason build legality is a question: every passive a Pal is born with is a slot a chosen passive cannot use.
85 of the 115 are in the random pool an egg can roll. 30 are not, which means they can only reach a Pal that already has one, through a parent, a fixed slot it is born with, or an item.
Inheritance is a separate flag from the pool, and it is the one thing this dataset does not yet answer: no graded source publishes a per-passive inheritance flag, so all 115 are recorded as unknown rather than guessed either way. The distinction still matters — a passive that is inheritable but outside the random pool is exactly the case that makes a carrier Pal valuable, because breeding is then the only route to it.
By rank: 7 at rank 5, 24 at rank 4, 31 at rank 3, 2 at rank 2, 36 at rank 1, 10 at rank -1, 2 at rank -2, 3 at rank -3. Rank is the passive's strength band, not its rarity, and it does not change how it is obtained.
46 Pals are born carrying a passive in a fixed slot. On those, the usable slot count is lower than the cap for every build, which is the first thing worth checking before planning one. 54 items grant a passive directly, and those are the non-breeding route.
Each passive has its own page here with the sourced answer for that passive: which Pals carry it, whether breeding can move it, and where it is blocked. This page is the shape of the system; those pages are the facts about one piece of it.
Data from Palworld v1.0.3, verified 2026-08-25.
30 of the 115 passives in Palworld v1.0.3 are outside the random pool, so no egg and no capture will produce one by chance. Each has to arrive by another route — a parent that carries it, a slot the Pal is born with, or an item — and its own page states which.
Yes — 54 passives in this dataset have an item route that grants them directly, which is the one way to add a passive without breeding for it. The item still costs a slot, so it does not raise the 4-slot cap.
Yes. 46 Pals are born carrying a passive in a fixed slot, and on those the usable slot count for a chosen build is lower than the cap. Checking that first is what stops a four-passive plan on a Pal that only has three slots free.
Each passive has its own page with the sourced answer for that passive — which Pals carry it, whether breeding can move it, and where it is blocked.