My Singing Monsters Breeding Calculator – Optimize Your Monster Breeding Success


My Singing Monsters Breeding Calculator

Unlock the secrets of monster breeding in My Singing Monsters! Our advanced My Singing Monsters Breeding Calculator helps you predict outcomes, estimate probabilities for rare and epic monsters, and optimize your breeding strategy. Input your parent monsters, desired outcome, and wishing torch count to get instant results and boost your chances of success.

Breeding Success Predictor



Please select Parent Monster 1.
Choose the first monster you are using for breeding.


Please select Parent Monster 2.
Choose the second monster for breeding.


Please select your desired monster.
The specific monster you are trying to breed.


Torches must be between 0 and 10.
Each lit Wishing Torch increases your chance of breeding rare or epic monsters. (Max 10)


Enhanced structures reduce breeding time by 25%.


Number of attempts must be at least 1.
How many times you plan to attempt breeding this monster.

A. What is a My Singing Monsters Breeding Calculator?

A My Singing Monsters Breeding Calculator is an essential tool for players of the popular mobile game, My Singing Monsters. This calculator helps players determine the potential outcomes of breeding two specific monsters, estimate the probability of successfully breeding a desired monster (especially rare, epic, or ethereal variants), and calculate the expected breeding time. It takes into account various in-game factors like the parent monsters chosen, the number of Wishing Torches lit, and the type of breeding structure used.

Who Should Use a My Singing Monsters Breeding Calculator?

  • New Players: To understand basic breeding mechanics and plan their monster collection efficiently.
  • Experienced Players: To optimize strategies for obtaining elusive rare, epic, or seasonal monsters.
  • Collectors: To track progress and estimate the resources (time, diamonds for speeding up) needed for specific monsters.
  • Efficiency Seekers: To maximize their chances of success and minimize wasted breeding attempts.

Common Misconceptions about My Singing Monsters Breeding

Many players have misconceptions about breeding in My Singing Monsters:

  • Guaranteed Outcomes: Breeding is not always guaranteed, especially for rare monsters. There’s often a probability factor involved.
  • Leveling Parents: While higher-level monsters produce more coins, their level does not directly increase breeding success rates for rare monsters (though higher happiness might).
  • Specific Combinations are Always Best: While certain combinations are known, the game often allows multiple paths to a monster, and sometimes simpler combinations are just as effective for common monsters.
  • Wishing Torches are a Guarantee: Wishing Torches significantly increase chances but do not guarantee a rare or epic monster. They are a probability boost, not a certainty.

B. My Singing Monsters Breeding Calculator Formula and Mathematical Explanation

The core of any My Singing Monsters Breeding Calculator lies in its ability to estimate probabilities and times. While the exact algorithms used by Big Blue Bubble (the game developers) are proprietary, community-derived formulas and observations allow for highly accurate estimations.

Step-by-step Derivation:

  1. Identify Possible Outcomes: Based on the elemental combination of Parent Monster 1 and Parent Monster 2, the calculator first determines all possible monsters that can be bred. For example, Plant + Cold can result in Furcorn (Plant/Cold), Potbelly (Plant), or Mammott (Cold).
  2. Determine Base Probability (P_base): Each desired monster has a base probability of being bred from a specific combination. For common monsters, this can be high (e.g., 80-100% after the first attempt). For rare, epic, or ethereal monsters, this base probability is very low (e.g., 1-5%).
  3. Adjust for Wishing Torches (P_torches): Wishing Torches increase the chance of breeding rare, epic, and ethereal monsters. Each lit torch adds a small percentage to the base probability for these special monsters. A common community estimate is +1% per torch for rare/epic/ethereal monsters, up to a maximum of 10 torches (+10%).

    P_adjusted = P_base + (Number of Torches * Torch_Bonus_Per_Torch)
  4. Calculate Breeding Time (T_base): Each monster has a specific base breeding time. This is a fixed value for each monster.
  5. Apply Breeding Structure Reduction (T_reduced): An Enhanced Breeding Structure reduces the breeding time by a fixed percentage (typically 25%).

    T_reduced = T_base * (1 - Breeding_Structure_Reduction_Rate)
  6. Calculate Cumulative Probability (P_cumulative): If a player attempts to breed multiple times, the cumulative probability of success increases.

    P_cumulative = 1 - (1 - P_adjusted)^Number_of_Attempts
  7. Estimate Expected Attempts (E_attempts): This is the average number of attempts needed to get the desired monster.

    E_attempts = 1 / P_adjusted

Variable Explanations:

Table 1: Key Variables for My Singing Monsters Breeding Calculator
Variable Meaning Unit Typical Range
Parent Monster 1 The first monster used in the breeding combination. Monster Name Any available monster
Parent Monster 2 The second monster used in the breeding combination. Monster Name Any available monster
Desired Monster The specific monster the player aims to breed. Monster Name Any breedable monster
Wishing Torches Number of lit Wishing Torches on the island. Count 0 – 10
Breeding Structure Type of breeding structure (Basic or Enhanced). Type Basic, Enhanced
Number of Attempts How many times the player plans to try breeding. Count 1 – 100+
P_base Base probability of breeding the desired monster. % 1% – 100%
Torch_Bonus_Per_Torch Additional probability percentage per lit torch. % ~1%
T_base Base breeding time for the desired monster. Hours/Minutes 30s – 48h+
Breeding_Structure_Reduction_Rate Percentage reduction in breeding time from enhanced structure. % 25%

C. Practical Examples (Real-World Use Cases)

Let’s look at how the My Singing Monsters Breeding Calculator can be used in common scenarios.

Example 1: Breeding an Entbrat

The Entbrat is a crucial monster for unlocking the Gold Island and breeding Ethereals. It’s a 4-element monster (Plant, Cold, Water, Earth).

  • Inputs:
    • Parent Monster 1: T-Rox (Cold, Earth, Water)
    • Parent Monster 2: Potbelly (Plant)
    • Desired Monster: Entbrat
    • Wishing Torches: 0
    • Breeding Structure: Basic
    • Number of Attempts: 1
  • Calculator Output (Expected):
    • Probability of Entbrat (1 Attempt): ~70-80% (since it’s a common 4-element)
    • Possible Outcomes: Entbrat, T-Rox, Potbelly, Mammott, Noggin, Toe Jammer, etc.
    • Base Breeding Time for Entbrat: 24 hours
    • Reduced Breeding Time: 24 hours
    • Expected Attempts for Entbrat: ~1.2 – 1.4 attempts
    • Cumulative Probability (over 10 attempts): ~99%
  • Interpretation: Using T-Rox + Potbelly is a very reliable way to get an Entbrat. Even with 0 torches and a basic structure, you have a high chance on the first try, and almost guaranteed success within a few attempts.

Example 2: Breeding a Rare Entbrat

Rare monsters are harder to get and require a bit more strategy.

  • Inputs:
    • Parent Monster 1: Entbrat
    • Parent Monster 2: Entbrat
    • Desired Monster: Rare Entbrat
    • Wishing Torches: 10
    • Breeding Structure: Enhanced
    • Number of Attempts: 20
  • Calculator Output (Expected):
    • Probability of Rare Entbrat (1 Attempt): ~10-15% (base ~1-5% + 10% from torches)
    • Possible Outcomes: Entbrat, Rare Entbrat
    • Base Breeding Time for Rare Entbrat: 36 hours
    • Reduced Breeding Time: 27 hours (36 * 0.75)
    • Expected Attempts for Rare Entbrat: ~7 – 10 attempts
    • Cumulative Probability (over 20 attempts): ~90-95%
  • Interpretation: With 10 Wishing Torches and an Enhanced Breeding Structure, your chances for a Rare Entbrat significantly improve. While a single attempt is still low, trying 20 times gives you a very high chance of success, and the reduced breeding time helps speed up the process. This highlights the importance of the My Singing Monsters Breeding Calculator for planning.

D. How to Use This My Singing Monsters Breeding Calculator

Using our My Singing Monsters Breeding Calculator is straightforward and designed for maximum clarity.

  1. Select Parent Monster 1: From the first dropdown, choose the monster you intend to use as the first parent.
  2. Select Parent Monster 2: From the second dropdown, choose the monster for the second parent. Ensure these monsters are placed in your Breeding Structure in the game.
  3. Select Desired Monster: Pick the specific monster you are hoping to breed from the third dropdown. This is crucial for the calculator to focus its probability estimates.
  4. Enter Wishing Torches: Input the number of Wishing Torches currently lit on your island. More torches increase your chances for rare and epic monsters.
  5. Choose Breeding Structure: Select whether you have a Basic or Enhanced Breeding Structure. An Enhanced structure reduces breeding times.
  6. Specify Number of Attempts: Enter how many times you plan to attempt this breeding combination. This helps calculate the cumulative probability of success over multiple tries.
  7. Click “Calculate Breeding Chances”: The calculator will process your inputs and display the results.

How to Read the Results:

  • Probability of Desired Monster (1 Attempt): This is your chance of getting the desired monster on any single breeding attempt, adjusted for torches.
  • Possible Outcomes: A list of all monsters that can potentially result from your chosen parent combination.
  • Base Breeding Time for Desired Monster: The standard time it takes to breed your desired monster without any reductions.
  • Reduced Breeding Time (with structure): The actual time your desired monster will take to breed, considering your chosen breeding structure.
  • Expected Attempts for Desired Monster: The average number of attempts you might need to successfully breed the desired monster.
  • Cumulative Probability (over X attempts): Your overall chance of getting the desired monster if you try breeding X times.

Decision-Making Guidance:

Use these results to decide if your current strategy is optimal. If the single-attempt probability is too low for a rare monster, consider lighting more Wishing Torches or trying different parent combinations. If the breeding time is too long, consider upgrading to an Enhanced Breeding Structure or using diamonds to speed up the process.

E. Key Factors That Affect My Singing Monsters Breeding Calculator Results

Understanding the variables that influence breeding outcomes is key to mastering My Singing Monsters. Our My Singing Monsters Breeding Calculator accounts for these critical factors:

  1. Parent Monster Combination: This is the most fundamental factor. Specific elemental combinations are required for specific monsters. For example, Plant + Cold is needed for Furcorn, but Plant + Cold + Water + Earth is needed for Entbrat. Incorrect combinations will never yield the desired monster.
  2. Desired Monster Rarity: Common monsters (like two-elementals) have high breeding rates. Rare, Epic, and Ethereal monsters have significantly lower base probabilities, making them much harder to obtain. The calculator adjusts for this inherent rarity.
  3. Wishing Torches: Each lit Wishing Torch on an island provides a small, cumulative boost to the probability of breeding rare, epic, and ethereal monsters. Having all 10 torches lit can dramatically improve your chances for these elusive creatures.
  4. Breeding Structure Type: The Basic Breeding Structure has no time reduction. The Enhanced Breeding Structure, however, reduces breeding times by 25%. This doesn’t affect the probability of success but significantly speeds up the process, allowing for more attempts in a shorter period.
  5. Seasonal/Event Availability: Some rare or epic monsters are only available during specific seasonal events. The calculator assumes the monster is currently breedable. Attempting to breed an unavailable monster will always result in a common monster.
  6. Luck (RNG): Despite all calculations and optimizations, breeding in My Singing Monsters still involves an element of random chance (RNG – Random Number Generation). The calculator provides probabilities, not guarantees. You might get lucky on your first try, or it might take many attempts even with high probabilities.

F. Frequently Asked Questions (FAQ) about My Singing Monsters Breeding

Q: Does monster level affect breeding success in My Singing Monsters?

A: No, monster level does not directly affect the probability of breeding a specific monster, including rare or epic variants. Higher-level monsters (above level 4) are only required for feeding to the Tribal Island or for increasing coin production.

Q: How many Wishing Torches should I light for rare monsters?

A: For rare, epic, or ethereal monsters, it is highly recommended to light all 10 Wishing Torches on the island where you are breeding. Each torch adds a small percentage to your success rate, making a significant difference cumulatively. Our My Singing Monsters Breeding Calculator demonstrates this impact.

Q: What’s the difference between a Basic and Enhanced Breeding Structure?

A: The Basic Breeding Structure has no special benefits. The Enhanced Breeding Structure, purchased with diamonds, reduces breeding times by 25%. This allows you to complete more breeding attempts in the same amount of time, which is crucial for rare monsters.

Q: Can I breed a rare monster if it’s not currently available?

A: No. Rare, Epic, and Seasonal monsters can only be bred when they are actively available in the game (e.g., during a specific event or promotion). If you attempt to breed them outside their availability window, you will only get their common counterpart or another common monster from the combination.

Q: Why am I not getting my desired monster even with high probability from the My Singing Monsters Breeding Calculator?

A: Breeding involves an element of luck (RNG). A high probability means you have a good chance, but it’s not a guarantee. Keep trying! The cumulative probability shown by the My Singing Monsters Breeding Calculator indicates your chances over multiple attempts.

Q: What are the best parent combinations for Ethereal monsters like Ghazt?

A: Ethereal monsters typically require a 4-element monster (like Entbrat for Ghazt on Plant Island) combined with a single-element monster. The specific single-element monster doesn’t matter for the combination, but it’s often recommended to use a single-element monster with a short breeding time (e.g., Mammott) to quickly clear failed attempts. Our My Singing Monsters Breeding Calculator can help you assess these combinations.

Q: Does the order of parent monsters matter in breeding?

A: No, the order of parent monsters does not affect the breeding outcome or probabilities. Breeding a Mammott + Potbelly is the same as breeding a Potbelly + Mammott.

Q: How can I speed up breeding times without diamonds?

A: The primary way to speed up breeding without diamonds is to use an Enhanced Breeding Structure. Beyond that, there are no in-game methods to reduce breeding times for free. You simply have to wait for the timer to complete.

G. Related Tools and Internal Resources

Enhance your My Singing Monsters experience with these other helpful tools and guides:



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