Selyne only breeds from Selyne + Selyne in Palworld 1.0. Like every legendary and tower Pal it is excluded from the breeding maths, and its only recipe is the self-pair, so no mixed pair of parents will ever hatch one. The route is catch first, then breed two together for the passives you want. The table below is one row long on purpose; the calculator above will show you the same for any pair you try, and the map further down shows where to find one.
The only pair that produces Selyne
Special recipes first (they win over the maths every time), then ordinary pairs sorted so the ones with the commonest parents come first. Hover a name for its stat card; click it for that Pal's own breeding page.
How the maths gets to Selyne
Selyne carries breeding power 360, but it is flagged as excluded from the maths: it can never be the "nearest Pal" result of an ordinary pair, however close the average lands. That flag is what makes legendaries and tower Pals catch-first. Any recipe that does produce Selyne is a hard-coded special pair, listed above.
Selyne + Selyne always hatches Selyne: breeding two of the same species is how you farm passives once you have a pair.
What Selyne breeds into
Selyne as a parent, with a few common partners. The forward tab of the calculator does this for any pair.
Where to catch Selyne
Selyne has no wild spawn point on the overworld map: it comes from eggs, breeding, dungeons, raids or a special encounter. Its codex card has the details. Open the interactive map →
Frequently asked questions
Can you breed Selyne in Palworld 1.0?
Only from two Selyne. No mixed pair of parents hatches Selyne in 1.0; catch one first, then breed the pair for passives.
What do two Selyne breed?
Selyne. Breeding two of the same species always hatches that species; it is how you farm passives once you have a pair.