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Breeding Structure

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"Breed new monsters!
Select individuals with different elements. Complex combinations are unstable and may turn out like a parent."

Breeding Structure
Breeding

Available

Level 7

Cost

200 Coin / 10 Shard

Sells for

N/A

Upgradable

Yes (25 Diamond25px)

Movable

Yes

Placement XP

750 XP icon

Size

4*4

The Breeding Structure is a nearly mandatory structure on every island. It allows you to the combine the elements of two parents (inputs) into one single child (output).

Breeding Chart

A quick reference chart for breeding new monsters can be found here.

General Breeding Rules

Monsters of the same species cannot breed. If a monster is placed on one side of the Breeding Structure, all other monsters of the same type will be greyed out, and unable to be selected on the other side.

When breeding two eligible parents, their elements are combined into a pool. If there are no elements repeated, then the offspring could potentially be a new species, consisting of all of the elements combined. If a repetition occurs, the resulting offspring will usually be one of the parents. Even with a correct combination, it is still possible to have an offspring that matches one of the parents.

Example: Breeding a Maw (Water, Cold) with a Clamble (Plant, Earth, Cold) contributes 4 different elements to the pool (Plant, Earth, Cold, Water).

Although the Entbrat consists of Plant, Earth, Cold, and Water elements, it cannot be bred with this combination because the Cold element was repeated.

Since there were repeated elements, the resulting offspring will be one of the parents: most likely the Maw (2 elements) because it has fewer elements.

This is because elements are repeated, and the 4-element monsters cannot be the result of "incorrect" breeding combinations. The 4-element monsters can only be the result of valid breeding combinations.

The only times you can successfully breed monsters that have elements in common are when you're trying to get one of the special monsters such as the Ethereal Monsters, the Shugabush, or the Seasonal Monsters. And these breeding attempts still usually fail, giving an offspring that matches one of the parents.

Double Element Monsters

Generally the easiest to breed and hatch, two-element monsters simply require two single-element monsters. For example, a Tweedle and a Potbelly should breed to create a Dandidoo. These breeding combinations appear to have 100% success rate.

It should be noted that breeding double element Ethereal Monsters does not have a 100% success rate.

Triple Element Monsters

These are slightly harder to breed and hatch, as a two-element monster and a single-element monster are required, and sometimes the offspring will take the species of a parent instead. For example, if the breeding is successful, a Quibble and Mammott would create a Congle.

Quad Element Monsters

The hardest of all natural monsters to breed and hatch, most of the time you will breed a parent by accident.

The player can breed these by pairing 2 two-element monsters or breeding a three-element and a single-element monster together. Here are two examples of trying to make a Deedge:

Maw + Dandidoo

Bowgart + Tweedle

The combinations of three-element and one-element monsters have higher success rates for breeding a Quad Element Monster than using a pair of two-element monsters. Otherwise, there currently is no evidence that any specific combination for any monster is more successful than another.

However when breeding for Quad Element monsters, many will choose which combination based on the breeding times of the parents, so that "failures" can be moved from the Breeding Structure to the Nursery at predictable or regular intervals without using diamonds to speed the process.

For example:

  • Using a pair of two-element monsters to breed a Deedge: Pango and Oaktopus

With each failed attempt, regardless of which parent is returned, the result is a monster that breeds in 8 hrs, so every 8 hrs an egg will hatch from the Nursery and one can be moved from the Breeding Structure to the Nursery.

With each failed attempt, the result will be an egg that takes 12 hrs or one that takes 2 minutes. This can result in a Mammott egg sitting complete in the Breeding Structure waiting nearly 12 hrs for a Spunge egg to finish its time in the Nursery. Since the result of a failed attempt is random, it can be hard to predict how often eggs will be ready to be moved - if several Mammott eggs are returned in a row, then several breeding attempts can happen in a matter of minutes. However if a Spunge egg is returned, then no more attempts can be made for 12 hrs (unless diamonds are used).

As such, the method used depends on the player's goal. If the goal is to breed a Quad Element monster, 3/1 combinations are recommended due to a higher success rate. If the goal is to sell unwanted monsters for money, then breeding a pair of two-element monsters can result in more regular intervals while still providing the chance of breeding a Quad Element Monster.

If a Quad Element Monster is put in the Breeding Structure with another monster, the result of the breeding attempt will ALWAYS be that other monster (the only exception has been when certain Limited Time Monsters are available, or when trying to breed Ethereal Monsters). Thus if breeding to sell unwanted monsters, you can breed a target monster with the Quad Element Monster and know exactly what the results will be. This can be used to sell monster eggs at regular intervals if the same combination (or one with equivalent breeding times) are used repeatedly. For example: Bowgart and Entbrat will always produce Bowgarts, except a very small chance of producing the Ghazt.

Limited Time Monsters

​Some monsters do not follow regular breeding requirements, instead requiring specific monsters as parents and a combination that is usually considered "unstable". Examples include the Punkleton, a limited Halloween monster that was bred using a Bowgart and a T-Rox, and the Yool, which is bred during the Christmas season with Thumpies and a Congle.

Limited Time Monsters are harder to breed than non-limited monsters, leading some to presume that the combinations are not correct.  

Legendary Monsters

Similar to Seasonal Monsters, the Legendary Monsters or "Shugafam" require specific breeding combinations. A comprehensive list of these combinations can be found here. The chance of a successful breeding is not 100%, and does not appear to depend on the element level of the non-Shugabush monster.

Wubbox and the Ethereals

With the addition of the Wubbox and then the Ethereal Monsters, it appears there may be fundamental, and permanent, changes to the breeding rules. The Wubbox added another element, but as of yet cannot be placed in the breeding structure. The Ethereal monsters appear to be the result of breeding an island's 4-element monster with ANY of the 3-element monsters available (although given the rarity of the monsters, not every combination has been confirmed). This obviously results not only in duplicated elements (like the Limited Time monsters do), but also up to four different end combinations (unlike the Limited Time Monsters which only have one combination).

The Ethereals appear to be even rarer than even Limited Time monsters, with suggestions that the chance of success is around 1%.

Notes

  • The breeding odds for rarer monsters may be increased by Wishing Torches

Enhanced Breeding Structure

Enhanced Breeding Structure

As part of the updates in version 1.3.0, you can upgrade the Breeding structure by spending 25 gems, and doing so reduces breeding wait times by 25%.

The Enhanced Breeding Structure is the same size and shape as the normal one, but the big pink heart becomes golden, and there are other golden touches added to the structure.




Structures
Luxuriouscastle200 Nursery Breeding Bakery
Castle Nursery Breeding Structure Bakery
Time Machine Mini-Mine IMG 1107 Recording Studio
Time Machine Mini-Mine Maximum Mine Recording Studio
Unity Tree Storage Shed Humble Hotel Wishing Torch
Unity Tree Storage Structure Hotel Structure Wishing Torch

Start a Discussion Discussions about Breeding Structure

  • Ethereal Group Observation (EGO)

    41 messages
    • Cool
    • COOL!
  • Upgraded Breeding Structure

    15 messages
    • I agree, I think the ghazt is scaring people away, but I mean it is released at level nine, which after tutorial is very close to beginning ...
    • The idea is good. I don't know about cutting the breeding time in half for the final upgrade, but maybe breed two at a time sounds better. If ...

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