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How to Breed Rainbow Slime — All 16 Parent Combinations

Rainbow Slime is a Neutral Pal with CombiRank 3100. It hatches from 16 parent combinations in Palworld 1.0 — the most accessible pairs come first, and the full table below is searchable. Data verified for Palworld 1.0 · Last updated October 22, 2026.

Full data on this Pal: Rainbow Slime stats & profile · more Neutral Pals in Palworld

Recommended parent pairs for Rainbow Slime

Ranked by accessibility: a pair scores by its rarer parent, because a higher CombiRank means a more common Pal. These are the pairs real players can assemble first — not just the first rows of the table.

1. Blue Slime + Cave Bat (rarer parent: CombiRank 3100) · special combination
   This is a fixed special combination, and its harder-to-get parent is Blue Slime (CombiRank 3100) — no other special pair for this Pal asks for less.
2. Blue Slime + Illuminant Bat (rarer parent: CombiRank 3100) · special combination
   This is a fixed special combination, and its harder-to-get parent is Blue Slime (CombiRank 3100) — no other special pair for this Pal asks for less.
3. Blue Slime + Rainbow Slime (rarer parent: CombiRank 3100) · special combination
   This is a fixed special combination, and its harder-to-get parent is Blue Slime (CombiRank 3100) — no other special pair for this Pal asks for less.
4. Cave Bat + Green Slime (rarer parent: CombiRank 3100) · special combination
   This is a fixed special combination, and its harder-to-get parent is Cave Bat (CombiRank 3100) — no other special pair for this Pal asks for less.
5. Cave Bat + Illuminant Slime (rarer parent: CombiRank 3100) · special combination
   This is a fixed special combination, and its harder-to-get parent is Cave Bat (CombiRank 3100) — no other special pair for this Pal asks for less.

Step by step: breeding Rainbow Slime

1. Build a Breeding Farm. It unlocks at Technology Level 19 and costs 100 Wood, 20 Stone and 50 Fiber. The palworld breeding farm setup guide covers placement.
2. Pick a pair from the table below — one male, one female — and assign both Pals to the Breeding Farm. Any pair in the table produces Rainbow Slime; the recommended pairs above are the ones most players can build first.
3. Mind the genders. For ordinary pairs only the two species matter, never which parent is male. Rainbow Slime's wild gender ratio is 50% male, which matters when you are catching parents.
4. Stock Cake in the farm's box. No Cake, no Egg. Cake is baked from Flour, Red Berries, Milk, Egg and Honey — the palworld cake farm guide shows how to keep it flowing.
5. Hatch the Egg. The pair produces an Egg of the type matching Rainbow Slime's element. Put it in an Egg Incubator and check the palworld egg incubation calculator for its hatch time and ideal temperature, or read the palworld egg types guide.

All parent combinations for Rainbow Slime

Search the table, filter by a parent's element, or switch on “Pals I own” to keep only the pairs you can build today. Working backwards from a different target? Plan multi-step routes with the palworld breeding chain calculator.

Any elementNeutral parentFire parentWater parentGrass parentElectric parentIce parentGround parentDark parentDragon parent Pals I own

Showing 16 of 16 combinations.

Parent 1	Parent 1 elements	Parent 2	Parent 2 elements	Type
Blue Slime	Water	Cave Bat	Neutral	Special
Blue Slime	Water	Illuminant Bat	Neutral	Special
Blue Slime	Water	Rainbow Slime	Neutral	Special
Cave Bat	Neutral	Green Slime	Grass	Special
Cave Bat	Neutral	Illuminant Slime	Neutral	Special
Cave Bat	Neutral	Rainbow Slime	Neutral	Special
Cave Bat	Neutral	Red Slime	Fire	Special
Enchanted Sword	Neutral	Rainbow Slime	Neutral	Special
Green Slime	Grass	Illuminant Bat	Neutral	Special
Green Slime	Grass	Rainbow Slime	Neutral	Special
Illuminant Bat	Neutral	Illuminant Slime	Neutral	Special
Illuminant Bat	Neutral	Rainbow Slime	Neutral	Special
Illuminant Bat	Neutral	Red Slime	Fire	Special
Illuminant Slime	Neutral	Rainbow Slime	Neutral	Special
Purple Slime	Dark	Rainbow Slime	Neutral	Special
Rainbow Slime	Neutral	Red Slime	Fire	Special

What Rainbow Slime breeds into

Rainbow Slime is also a parent. Paired with common Pals, it produces these offspring — the full parent-by-parent list lives in the palworld breeding calculator.

• Rainbow Slime + Pupperai → how to breed Sparkit (Sparkit · CombiRank 3010)
• Rainbow Slime + Gumoss → how to breed Lifmunk (Lifmunk · CombiRank 3020)
• Rainbow Slime + Clovee → how to breed Jolthog (Jolthog · CombiRank 3030)
• Rainbow Slime + Foxparks → how to breed Mau (Mau · CombiRank 3040)
• Rainbow Slime + Sparkit → how to breed Lamball (Lamball · CombiRank 3050)
• Rainbow Slime + Jolthog → how to breed Vixy (Vixy · CombiRank 3060)
• Rainbow Slime + Lamball → how to breed Teafant (Teafant · CombiRank 3070)
• Rainbow Slime + Rainbow Slime → how to breed Chikipi (Chikipi · CombiRank 3080)
• Rainbow Slime + Demon Eye → how to breed Demon Eye (Demon Eye · CombiRank 3100 · special combination)
• Rainbow Slime + Eye of Cthulhu → how to breed Eye of Cthulhu (Eye of Cthulhu · CombiRank 3100 · special combination)

Keep breeding — parent guides

• How to breed Blue Slime — a recommended parent for Rainbow Slime
• How to breed Cave Bat — a recommended parent for Rainbow Slime
• How to breed Illuminant Bat — a recommended parent for Rainbow Slime
• How to breed Green Slime — a recommended parent for Rainbow Slime
• How to breed Illuminant Slime — a recommended parent for Rainbow Slime
• Plan a breeding chain to Rainbow Slime — find the shortest route from a Pal you already own.

Breeding Rainbow Slime for passive skills

Species is only half the plan — the child also inherits passive skills from both parents. Once your pair is set, run it through the palworld passive skill calculator to see the odds of inheriting the passives you want, and read the palworld passive skill breeding guide for how inheritance actually picks its winners.

Rainbow Slime breeding FAQ