MSM Breeding Calculator

Calculate breeding times and discover monster combinations in My Singing Monsters.

Invalid combination. This pairing does not produce a unique monster.

What is an MSM Breeding Calculator?

An MSM Breeding Calculator is a specialized tool for the popular game “My Singing Monsters”. It allows players to predict the outcome of breeding two monsters together. By selecting two parent monsters, this calculator determines the potential resulting monster and, crucially, its required breeding time. This is essential for efficient gameplay, as it helps players plan their breeding strategy, manage their nursery, and aim for specific monsters, from common Naturals to rare Ethereals. The msm breeding calculator is a vital resource for any serious player looking to complete their monster collections.

MSM Breeding Formula and Explanation

Unlike a typical financial calculator, the logic of an msm breeding calculator isn’t a mathematical formula but a lookup based on predefined game rules. However, the time calculation follows a simple formula:

Breeding Time = Base Monster Time × (1 - Structure Bonus)

The “Structure Bonus” is 0 for a standard structure and 0.25 (or 25%) for an Enhanced Breeding Structure. The Base Monster Time is a fixed value unique to each monster species.

Breeding Calculation Variables

Variable	Meaning	Unit	Typical Range
Parent A / Parent B	The two monsters selected for breeding.	Monster Species	N/A
Base Monster Time	The default breeding time for the resulting monster.	Seconds	5s (Noggin) to >1,728,000s (some Epics)
Structure Bonus	A percentage reduction from an upgraded structure.	Percentage (%)	0% or 25%
Final Breeding Time	The actual time you will wait in the game.	Days, Hours, Minutes	Varies

Practical Examples

Example 1: Breeding a T-Rox

A player wants to breed a T-Rox on Plant Island. A known combination is a Maw and a Drumpler.

• Inputs: Parent A = Maw, Parent B = Drumpler, Enhanced Structure = No
• Calculation: The game’s data maps this combination to a T-Rox, which has a base time of 8 hours (28,800 seconds).
• Results: The calculator shows “T-Rox” with a breeding time of 0d 08h 00m 00s.

Example 2: Breeding a Ghazt (with enhancement)

A player is trying to breed the rare Ethereal monster, Ghazt, by combining an Entbrat and a T-Rox. They have an enhanced structure.

• Inputs: Parent A = Entbrat, Parent B = T-Rox, Enhanced Structure = Yes
• Calculation: This combination can result in a Ghazt. The Ghazt’s base time is 36 hours (129,600s). The enhancement reduces this by 25%. 129,600 * (1 – 0.25) = 97,200 seconds.
• Results: The calculator shows “Ghazt” with an enhanced time of 1d 03h 00m 00s. The base time of 1d 12h 00m 00s is also shown for comparison. Check out our msm ethereal breeding guide for more tips.

How to Use This MSM Breeding Calculator

1. Select Parent A: Use the first dropdown to choose your first monster.
2. Select Parent B: Use the second dropdown to choose the second monster. The order doesn’t affect the outcome.
3. Check Enhancements: Tick the “Enhanced Breeding Structure” box if you have upgraded your breeding structure in the game. This will calculate the 25% time reduction.
4. Review Results: The calculator instantly shows the resulting monster and its breeding time. If the combination is invalid, an error message will appear.
5. Interpret Time: The primary result is the monster’s name. The intermediate values show both the standard and enhanced breeding times, allowing you to confirm the monster you’re breeding even if you forget to check the box.

Key Factors That Affect MSM Breeding

• Parent Combination: This is the single most important factor. Only specific pairs of monsters can produce new species. Using a good msm breeding chart is crucial.
• Breeding Structure Level: An enhanced structure is a key investment, reducing all breeding times by a flat 25%.
• Island Location: Some monsters can only be bred on specific islands. For example, Ethereals can only be bred on the natural islands.
• Game Events: Big Blue Bubble often runs breeding bonanzas or seasonal events that increase the chances of breeding rare, epic, or seasonal monsters.
• Wishing Torches: Lighting Wishing Torches (either with diamonds or by friends) increases the probability of breeding rarer monsters, though it does not change the possible outcomes. This is especially important for rare monster breeding msm.
• Luck: For rare monsters like Ethereals, there is a low percentage chance of success. Even with the correct combination and lit torches, it may take many tries.

Frequently Asked Questions (FAQ)

Does the level of my monsters affect breeding?
While not officially confirmed to change outcomes, higher-level monsters produce more coins and are generally recommended. For breeding success chance, some players believe it helps.

What happens if I use an invalid combination?
If the monster combination is not a valid recipe for a new monster, you will get one of the parent monsters as the result. This calculator will show an error for such pairings.

How do I know what monster I’m breeding before it hatches?
The breeding time is the key indicator. Each monster has a unique base time. Our msm breeding calculator helps you match the time you see in the game to the correct monster.

Is the order of parents important?
No, breeding Monster A with Monster B is the same as breeding Monster B with Monster A.

How do you calculate breeding time?
The breeding time is a fixed value per monster, minus 25% if you have an enhanced structure. The formula is `Base Time * 0.75` for enhanced breeding.

What is the best way to get Ethereal monsters?
Breed a four-element monster with a three-element monster on a natural island (e.g., Entbrat + T-Rox). The chance is very low (~1%), so lighting Wishing Torches is highly recommended. See our msm ethereal breeding guide for details.

Can I breed Rare and Common monsters together?
Yes. Breeding a monster with its own Rare version is a strategy often used to guarantee getting that monster, which can be useful during Zynth Farm building or similar goals.

Why is my breeding time different from the calculator?
Ensure you have correctly selected the ‘Enhanced Breeding Structure’ option if you have one. Also, check for any game-wide events that might temporarily alter breeding times.