The highly anticipated Build a Zoo Update 41 has officially rolled out, and it is packed with exciting new features, new pets, fresh codes, inventory improvements, level cap increases, and performance upgrades that significantly enhance the overall gameplay experience. Whether you’re a devoted zoo designer, pet collector, or a competitive player aiming for the strongest Big Pets and Big Fish, Update 41 delivers a wide range of enhancements worth exploring in detail.
From the introduction of Mountain and Ocean eggs, new pets like Aurelia and Azure, to crucial system refinements like the rarity filter and Weather Mutation Override, this update pushes Build a Zoo into its smoothest, most player-friendly version yet. Below is a complete, SEO-optimized deep dive into everything you need to know about Update 41—including redeemable codes, new settings, pet upgrades, system improvements, and more.
Build a Zoo Update 41 Overview
Update 41 focuses on expanding pet variety, improving system usability, and giving players more control over pet development. With two brand-new eggs, two new pets, and multiple gameplay refinements, this update caters to both early-game and late-game players.
Key additions in Update 41:
- Two brand-new eggs (Mountain & Ocean categories)
- Two new pets: Aurelia (Mountain) and Azure (Ocean)
- A full rarity sorting filter for the Inventory
- Increased level caps for Big Pets and Big Fish
- New Weather Mutation Override controls
- Major performance optimization across all devices
- New Black Friday redeem codes
Each feature plays an important role in improving gameplay flow and making pet management more strategic and rewarding.
New Eggs and Pets in Build a Zoo Update 41
One of the most exciting parts of Update 41 is the introduction of two new eggs and their corresponding pets. These expansions to the Mountain and Ocean categories offer new collectible challenges and fresh abilities for players interested in optimizing their zoo.
1. White Swan Egg (Mountain Egg)
The White Swan Egg is a new addition to the Mountain Egg family. This egg can be obtained through the Transcendent Conveyor, making it a premium item designed for serious collectors and mid-to-late-game players focused on enhancing their pet roster.
How to obtain:
- Available through the Transcendent Conveyor
- Rare drop with high-value rewards
The elegant design and rarity of the White Swan Egg make it a standout egg addition and an exciting piece for egg collectors across the community.
2. Aurelia (Mountain Pet)
Aurelia is the exclusive pet that hatches from the White Swan Egg. With a majestic appearance and impressive stats, Aurelia is expected to become one of the most favored Mountain-type pets in the game.
Aurelia’s highlights include:
- Strong Mountain category abilities
- Unique animations
- High growth potential
- Excellent synergy with Mountain habitat boosts
This pet offers a mix of beauty, strength, and versatility, making it appealing for both collectors and competitive players.
3. Azure (Ocean Pet)
Azure is the second new pet added in Update 41 and represents the Ocean category. Azure is obtained through the Jellyfish Egg, adding more depth to the underwater pet lineup.
Why Azure is special:
- Fresh addition to the Ocean family
- Great for underwater habitats
- Offers new mutation possibilities
- Helps diversify Ocean category strategies
Players aiming to balance their zoo or strengthen their aquatic sections will love adding Azure to their roster.
Inventory Improvements: Rarity Filter & UI Enhancements
One of the community’s most requested features has finally arrived—Inventory rarity filters.
Update 41 introduces a complete Inventory upgrade, allowing players to browse pets more efficiently by selecting specific rarities, such as:
- Common
- Uncommon
- Rare
- Epic
- Legendary
- Transcendent
Benefits of the new system:
- Faster pet management
- Easier searching through large collections
- Cleaner and more organized UI
- Quicker sorting for mutation or trading purposes
Players who maintain big collections will especially appreciate this improvement, as it drastically reduces clutter and speeds up gameplay.
Level Cap Increases for Big Pets and Big Fish
Progression-oriented players have been asking for higher level caps, and Update 41 delivers just that. Two major increases make the late-game grind more engaging and rewarding.
1. Big Pet Level Cap Increased to 370
The maximum level for Big Pets has been raised by 5 levels, with the new cap now set at Level 370.
What this means for players:
- More stat growth
- More mutation potential
- Extra power scaling for late-game challenges
- New ways to optimize pet builds
This change gives players more end-game content and adds depth to Big Pet progression.
2. Big Fish Level Cap Increased to 100
Big Fish players also get a significant upgrade with a 10-level increase, pushing the maximum Big Fish level to Level 100.
Benefits include:
- Higher damage and defense scaling
- More strategic fishing builds
- Additional mutation layers
- A better incentive for aquatic gameplay
Combined, these two level cap increases give players more goals and a stronger reason to continue developing their top-tier pets and fish.
New System Settings: Weather Mutation Override
Another major highlight of Update 41 is the new Weather Mutation Override Settings, giving players direct control over how weather affects their pets.
What the Weather Mutation Override does:
- Lets players enable or disable specific weather mutations
- Prevents unwanted mutations from overwriting valuable ones
- Allows more strategic and controlled pet progression
Weather-based mutations have always played a crucial role in pet development. But until now, they sometimes created frustration by overwriting preferred mutations. With this new feature, players can preserve their best attributes and prevent unwanted changes.
Why this setting matters:
- Better control = less mutation anxiety
- Easier to keep optimized pets
- Reduced risk of losing rare or powerful mutations
- Helpful for competitive or collection-focused players
This system offers more freedom and personalization, especially for players who specialize in breeding, mutation farming, or pet optimization.
Performance Optimization and Game Stability
Update 41 also focuses heavily on enhancing overall performance—something that greatly benefits every player, regardless of level or playstyle.
Performance improvements include:
- Faster loading times
- Smoother transitions between habitats
- Optimized animations
- Reduced lag in crowded zoo areas
- Improved memory usage on all devices
- Better stability during peak events
With these refinements, gameplay feels smoother and more responsive. Players with mid-range or older devices will notice a significant upgrade.
New Build a Zoo Codes (Update 41 & Black Friday)
Update 41 was released alongside the Black Friday event, delivering new redeem codes that players can claim for gifts, boosts, or in-game rewards.
Latest Active Codes from Update 41:
- ZooFarmers
- FRIDAYGIFT5
These codes were specifically released for the Black Friday Update 41 celebration. Players are encouraged to redeem them as soon as possible, as event codes typically have short expiration windows.
How to redeem codes in Build a Zoo:
- Open the game.
- Go to the Settings icon.
- Enter the code in the Redeem Code section.
- Press Confirm to receive your reward.
For older or previously released codes, players can check the official Build a Zoo Codes Tracker page.
Why Update 41 Is One of the Most Significant Updates Yet
Update 41 is more than just a typical patch—it’s a major milestone that enhances nearly every aspect of gameplay. Whether you’re focused on collecting, breeding, leveling, or optimizing your zoo, every player benefits from these changes.
Why Update 41 stands out:
- Adds meaningful content (pets, eggs, codes)
- Reduces Inventory frustration
- Enhances pet growth potential
- Improves system control with mutation overrides
- Makes the game visually and technically smoother
- Supports both new and veteran players
This update strikes a perfect balance between content expansion and quality-of-life improvements that refine the game’s foundation.
Conclusion: Build a Zoo Update 41 Has Something for Everyone
The Build a Zoo Update 41 is a powerful blend of new pets, new eggs, long-awaited system features, extended level caps, performance improvements, and exciting redeem codes. Whether you’re hunting for the new Aurelia, raising Azure in your aquatic habitats, organizing your Inventory with the new filter, or pushing your Big Pets toward level 370, this update adds depth, convenience, and fun across the board.
As Build a Zoo continues to grow, Update 41 stands as proof that the developers are dedicated to improving both content and gameplay quality—making the entire zoo-building adventure more rewarding for players of all levels.