Complete Breeding System Guide
Master animal breeding! Learn combinations, requirements, success rates, and profit strategies.
What is Breeding?
Breeding is a game mechanic that allows you to combine two animals to create a new, potentially rarer animal! It's one of the best ways to get legendary and exclusive animals without relying on low spawn rates.
The breeding system was introduced in the Mutation System v2.0 update (October 2025) and has become the #1 way advanced players make millions of Cash!
How Breeding Works (Step-by-Step)
Unlock the Breeding Pen
Purchase the Breeding Pen from the shop for 50,000 Cash (one-time fee).
- •Located in the Buildings section of the shop
- •Appears after you've caught 10+ unique animals
- •Unlock requirement: Level 15+
Select Two Compatible Animals
Choose two animals from your collection to breed:
- •Both animals must be fully grown (100% growth bar)
- •Both must be in your zoo (not in the marketplace)
- •Some combinations have higher success rates than others
- •Same-species breeding has lower success but possible
Pay the Breeding Fee
Breeding costs Cash based on parent rarity:
- •Common + Common: 5,000 Cash
- •Rare + Rare: 10,000 Cash
- •Epic + Epic: 15,000 Cash
- •Legendary + Legendary: 25,000 Cash
- •Mixed rarities: Average of the two
Wait for Breeding Time
Breeding takes time depending on rarity:
- •Common offspring: 4 hours
- •Rare offspring: 8 hours
- •Epic offspring: 12 hours
- •Legendary offspring: 18 hours
- •Exclusive offspring: 24 hours
- •Can speed up with Rubies (50 Rubies per hour)
Claim Your New Animal!
Once breeding completes, claim your offspring:
- •New animal starts at 0% growth
- •Inherits traits from both parents
- •May have unique appearance/mutations
- •Can immediately breed again with parents
💰 Breeding Requirements & Costs
Breeding Pen
Unlock the breeding pen from the shop. One-time purchase.
Two Compatible Animals
Both animals must be fully grown (100% growth bar).
Breeding Fee
Depends on parent rarity. Legendary = higher cost.
Breeding Time
Wait time depends on rarity. Can speed up with Rubies.
Best Breeding Combinations
💡 Pro Tip: Best epic-to-legendary breeding combo for beginners!
💡 Pro Tip: Ocean breeding combo with massive profit potential.
💡 Pro Tip: RAREST breeding combo! Worth millions if you get it.
💡 Pro Tip: High success rate. Good for learning breeding mechanics.
Success Rate Factors
Breeding success isn't random - several factors affect your chances:
Parent Compatibility
+25% bonusSame biome parents have higher success rates (e.g., two Ocean animals).
Parent Health
+15% bonusFully fed, happy animals breed better. Feed both before breeding!
Breeding Pen Level
+10% per levelUpgrade your breeding pen with Rubies for permanent bonuses.
Lucky Weather
+20% bonusBreeding during specific weather events (Sunset) improves success.
Rare Parent Bonus
+5% per rarity tierUsing Legendary parents increases offspring rarity chances.
Advanced Breeding Strategies
Mass Breeding Farm
Build multiple breeding pens (unlock up to 5). Run 5 breeding operations simultaneously for maximum profit!
Legendary Hunting
Focus on breeding Legendary + Legendary combos. 3% chance of Exclusive offspring worth millions!
Fast Turnover
Breed Common/Rare animals with 4-8 hour times. Sell offspring quickly for steady cash flow.
Weather Timing
Wait for Sunset weather (+20% breeding success) before starting expensive Legendary breeding.
Mutation Breeding
Breed two mutated animals for higher chance of mutated offspring (worth 3-5x more)!
Collection Completion
Breed for rare animals you can't find naturally. Complete your collection faster!
⚠️ Common Breeding Mistakes
❌ Breeding animals that aren't fully grown
Fix: Wait for 100% growth bar on both parents. Rushed breeding has 0% success rate!
❌ Using same animal twice
Fix: You need TWO different animals. Can't breed one animal with itself.
❌ Not feeding parents before breeding
Fix: Feed both animals to 100% happiness for +15% success bonus.
❌ Selling offspring too early
Fix: Wait for offspring to fully grow, then mutate it for 3x value before selling!
❌ Ignoring breeding pen upgrades
Fix: Upgrade your pen! Each level gives permanent +10% success rate.
❌ Breeding during bad weather
Fix: Wait for Sunset weather (+20% bonus) before expensive Legendary breeding.
Frequently Asked Questions
Can I breed the same animal species together?▼
Yes, but success rates are lower (5-10%). Cross-species breeding is more effective.
Do I lose the parent animals after breeding?▼
No! Parents stay in your collection. You can breed them again immediately.
How many breeding pens can I have?▼
Up to 5 pens maximum. Each additional pen costs more Rubies to unlock.
Can mutated animals breed?▼
Yes! Breeding two mutated animals gives higher chance of mutated offspring (worth more).
What's the rarest breeding result?▼
Celestial Phoenix (Exclusive) from Phoenix + Unicorn. Only 3% success rate but worth 500k+ base value!
Can I cancel breeding once started?▼
Yes, but you lose the breeding fee. Offspring is discarded and parents return to collection.
Does breeding count toward collection completion?▼
Yes! Bred animals count as 'caught' for collection achievements and rewards.
Start Breeding for Profit!
Ready to build your breeding empire? Check out these related guides: