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Breeding and Eggs
April 4, 2026 at 08:35 AM
Added egg types table, hatching mechanics, shiny inheritance, and King Ball info from Bilibili wiki data
Breeding is a core gameplay system in Roco Kingdom: World that allows players to produce new Spirits through the egg system. By pairing two compatible Spirits together, players can hatch offspring with inherited stats, natures, and special traits. Breeding is integrated into the Spirit Travel (精灵旅行) system, accessible from the lower-right corner of the main map.
To begin breeding, players must unlock the Home System via main quest Chapter 3. Place two adjacent spirit nests in your homestead, then assign a male and female pair. The two Spirits must belong to the same egg group (not just the same element type). Species follows the mother; bloodline follows the father.
There are five categories of spirit eggs, each with different guaranteed qualities.
Egg Type | Chinese Name | Key Feature | How to Obtain |
|---|---|---|---|
Perfect Egg | 完美蛋 | Guaranteed remarkable talent (了不起资质) stats | Standard breeding with any compatible pair |
Story Egg | 剧情蛋 | Remarkable talent + special ability | Currently only from Iris NPC; may grant unique mount abilities |
Custom Shiny Egg | 自选炫彩蛋 | Self-select shiny pattern and color | Unlocked after obtaining 10 of the same species (capture or hatch combined) |
Shiny Egg | 异色蛋 | Guaranteed shiny individual | Breeding with shiny parents increases chance. Use King Ball for remarkable talent |
Alternate Color Egg | 炫彩蛋 | Guaranteed alternate color individual | Breeding with colorful parents. King Ball ensures remarkable talent |
After an egg is produced, hatching progress is determined by the player's in-game movement distance, including flight. This works similarly to Pokemon's egg hatching system. Key details:
Hatching duration ranges from 30 minutes to 20 hours depending on species
A maximum of 3 eggs can incubate simultaneously
Progress is based on distance traveled in the game world, not real time alone
You can retrieve eggs at any time, but progress resets if you remove them early
Walking, running, and flying all count toward hatching distance
If either parent has a shiny (异色) or colorful (炫彩) variant, offspring have a significantly increased chance of producing shiny or alternate color eggs. Even without shiny parents, hatched eggs may still randomly produce these special variants, though the probability is much lower.
Using a King Ball (国王球) on a freshly hatched spirit guarantees it receives the remarkable talent classification (了不起资质), which is the highest quality tier. King Balls can be purchased for 15,000 Locke Shells with no weekly limit.
All breedable spirits belong to at least one egg group. Two spirits can only breed if they share at least one egg group. The egg group is separate from element type, so a Fire-type and a Water-type can breed if they share an egg group. Check the in-game Egg Group Calculator or Spirit Cultivation resources for the full group list.
Collect 10 of the same species through capture or hatching to unlock the Custom Shiny Egg option for that species
Use seasonal events to obtain special capture balls that guarantee both colorful variant and remarkable talent
Breed a high-IV male with a correct egg group to pass down its bloodline to many different species
The optimal shiny strategy: obtain extreme quality eggs from friend spirit blessings plus rainbow ball capture
