Eggs are how you get pets in Build A Ring Farm, and each one hatches into a random pet from its own pool. The cheap ones cough up a basic farm helper, while the pricey ones can land you a Secret or Divine pet that quietly carries your whole income. Here you can line them up side by side: what each egg costs, where you buy it, and which pets are hiding inside.
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Cash Eggs (Egg Merchant)
Bought from the Egg Merchant with Cash you earn on your farm. They run from a cheap starter egg up to a heavy late-game egg, and the price jumps each time the pool adds a rarer pet. This is the ladder you climb without spending Robux.
Common Egg
The cheapest starter egg, bought from the Egg Merchant for 25 million Cash. It only hatches the two Common pets, so it is mainly an early-game step.
- availability
- Permanent
- cost
- $25M Cash
- where to get
- Egg Merchant
- top rarity
- Common
- Order
- 1
- pet pool
- Hatches one of two Common pets: Capybara or Golden Retriever, both giving a small income boost.
Uncommon Egg
A low-tier cash egg at the Egg Merchant that steps you up from Common pets to Uncommon ones like the Llama and Elephant. Its exact Cash price is not shown here yet.
- availability
- Permanent
- cost
- Cash (price not disclosed)
- where to get
- Egg Merchant
- top rarity
- Uncommon
- Order
- 2
- pet pool
- Hatches Uncommon pets such as the Llama and Elephant.
Rare Egg
A mid-game cash egg from the Egg Merchant costing 25 billion Cash. Its six-pet pool tops out at the Epic Lion and Polar Bear.
- availability
- Permanent
- cost
- $25B Cash
- where to get
- Egg Merchant
- top rarity
- Epic
- Order
- 3
- pet pool
- Six pets across Uncommon, Rare and Epic: Llama, Elephant, Gorilla, Crocodile, Lion and Polar Bear. Lion and Polar Bear are the rarest pulls.
Epic Egg
A late-game cash egg that adds the Legendary Mammoth and the Secret Hydra on top of the Rare Egg pool. Stock rotates on a timer, so it is not always for sale at the Egg Merchant.
- availability
- Permanent
- cost
- $25T Cash
- where to get
- Egg Merchant (RNG stock)
- top rarity
- Secret
- Order
- 4
- pet pool
- Eight pets from Uncommon up to Secret: Elephant (~33%), Llama, Crocodile (~33%), Gorilla (~20%), Lion (~20%), Polar Bear (~9%), Mammoth (~1.6%) and the Secret Hydra (~0.3%).
Legendary Egg
The top cash egg, costing 100 trillion. It is the highest-rarity egg you can buy with farmed Cash and can hatch up to Prismatic pets like the Red Panda.
- availability
- Permanent
- cost
- $100T Cash
- where to get
- Egg Merchant
- top rarity
- Prismatic
- Order
- 5
- pet pool
- Contains Epic, Legendary, Secret and Prismatic pets, including the Secret Rhino and the Prismatic Red Panda.
| Image | Name | Description | availability | cost | where to get | top rarity | Order | pet pool |
|---|---|---|---|---|---|---|---|---|
| Common Egg | The cheapest starter egg, bought from the Egg Merchant for 25 million Cash. It only hatches the two Common pets, so it is mainly an early-game step. | Permanent | $25M Cash | Egg Merchant | Common | 1 | Hatches one of two Common pets: Capybara or Golden Retriever, both giving a small income boost. | |
Uncommon Egg | Uncommon Egg | A low-tier cash egg at the Egg Merchant that steps you up from Common pets to Uncommon ones like the Llama and Elephant. Its exact Cash price is not shown here yet. | Permanent | Cash (price not disclosed) | Egg Merchant | Uncommon | 2 | Hatches Uncommon pets such as the Llama and Elephant. |
| Rare Egg | A mid-game cash egg from the Egg Merchant costing 25 billion Cash. Its six-pet pool tops out at the Epic Lion and Polar Bear. | Permanent | $25B Cash | Egg Merchant | Epic | 3 | Six pets across Uncommon, Rare and Epic: Llama, Elephant, Gorilla, Crocodile, Lion and Polar Bear. Lion and Polar Bear are the rarest pulls. | |
| Epic Egg | A late-game cash egg that adds the Legendary Mammoth and the Secret Hydra on top of the Rare Egg pool. Stock rotates on a timer, so it is not always for sale at the Egg Merchant. | Permanent | $25T Cash | Egg Merchant (RNG stock) | Secret | 4 | Eight pets from Uncommon up to Secret: Elephant (~33%), Llama, Crocodile (~33%), Gorilla (~20%), Lion (~20%), Polar Bear (~9%), Mammoth (~1.6%) and the Secret Hydra (~0.3%). | |
| Legendary Egg | The top cash egg, costing 100 trillion. It is the highest-rarity egg you can buy with farmed Cash and can hatch up to Prismatic pets like the Red Panda. | Permanent | $100T Cash | Egg Merchant | Prismatic | 5 | Contains Epic, Legendary, Secret and Prismatic pets, including the Secret Rhino and the Prismatic Red Panda. |
Cash eggs vs Robux eggs
The eggs you buy with farmed Cash sit with the Egg Merchant, and they climb in price as the pets inside get rarer. You can grind your way to every one of them, so they are the backbone of a free-to-play run. The Robux eggs live in the Premium Shop instead, come and go as events, and are the only way to reach a few of the flashiest pets. If you never spend Robux, the Cash ladder still takes you a long way.
Picking which egg to open
Hatching is a spin: you drop an egg into a slot and it lands on a random pet from that egg's pool. Higher-tier eggs cost a lot more but stack the pool with rarer, higher-earning pets, so the rare pulls are worth the wait. Unlock extra egg slots when you can, since opening several at once gives you more rolls at those rare pets without sitting and waiting for one egg at a time.
FAQ
How do you hatch an egg in Build A Ring Farm?
Buy an egg, drop it into an open egg slot, and open it. The egg spins and lands on a random pet from that egg's pool. You can buy more egg slots so several eggs open at the same time.
Where do you buy eggs?
Cash eggs come from the Egg Merchant out on the map. Robux and event eggs are sold separately in the Premium Shop, which you reach from the Shop button.
Which egg has the best pets?
Higher-cost eggs hold rarer pets. The top Cash egg can hatch up to Prismatic pets, while the Robux dinosaur egg is the only place to pull Divine-rarity pets, which earn the most.
Are the Robux eggs worth it?
They are the only way to get some themed and top-rarity pets, and they can be gifted. If you would rather not spend Robux, the Cash eggs still cover most of the pet pool on their own.
Do all eggs show their hatch chances?
No. Only some eggs have shared exact per-pet odds. Where the game has not published a chance, the card lists the pets in the pool without guessing a number.
