In Break and Steal an Egg, some animals carry more than a name and a rarity. A mutation changes how a pet looks, and you can read it directly from the floating text above the animal in your base. Two mutations appear on pets in the game: Gold and Frozen. Each one is tagged in plain text, sits alongside the pet’s rarity, and comes with a live cash-per-second figure. That figure tells you whether the pet deserves one of your limited equip slots.
Quick answer: Look above each pet in your base. A “Gold” or “Frozen” tag marks the mutation, the next tag shows rarity, and the $/s value shows income. Equip whichever pets post the highest per-second numbers.
How to spot a mutated pet in Break and Steal an Egg
Every animal placed in your base displays a small stack of floating text. You don’t need to open a menu to check whether a pet is mutated. Walk past your pets and read the overhead labels. Mutated pets also stand out visually. A Gold pet takes on a bright golden-yellow texture that is hard to miss next to normal animals.
The overhead label carries three pieces of information:
- Mutation tag, such as “Gold” or “Frozen.” Pets without a mutation simply skip this line.
- Rarity tier, such as “Uncommon,” “Rare,” or “Mythic.”
- Income rate, shown as cash per second, for example “$914/s.”
Mutation and rarity are separate labels. A pet can be Rare and Gold at the same time. So treat the mutation as an extra layer on top of rarity, not a replacement for it.
Gold vs. Frozen mutation income
Two pets of the same rarity can earn very different amounts once a mutation is involved. Here’s how two Rare pets with different mutations compare in a base:
| Mutation | Rarity | Income | Appearance |
|---|---|---|---|
| Gold | Rare | $914/s | Bright golden yellow |
| Frozen | Rare | $262/s | Frozen texture |
In this pairing, the Gold Rare pet earns more than three times as much per second as the Frozen Rare pet. That gap is a useful rule of thumb, but it’s not a fixed multiplier you can apply to every animal. Base income also depends on which animal it is. Always trust the per-second number above the pet instead of guessing from the tag alone.
Income adds up fast once animals are placed. A pet showing “+$255/s” can sit right next to one earning a few dollars, so compare the numbers before you decide what stays in the base.
Getting mutated pets into your base
Mutated pets are still animals, and every animal in Break and Steal an Egg reaches your base the same way. You crack an egg, take what hatches, and carry it home. The mutation only starts paying off once the pet is placed and earning.
If you try to drop a pet somewhere the game doesn’t allow, a red banner appears at the bottom of the screen reading “You cannot place your pet here!” The pet isn’t placed and won’t earn anything. Move back inside your base and try again.
The cash those pets generate feeds the two core upgrades, speed and pickaxe. More speed makes it easier to outrun guards on the way home. A better pickaxe makes each egg quicker to open. Both shorten the trip, which means more chances at a mutated animal.
Equipping mutated pets: slots, Equip Best, and costs
Owning a high-earning mutated pet only matters if it’s in an active slot. The pet panel on the side of the screen lists your equipped animals with their per-second income in brackets, for example Llama ($138.5K/s), Muscovy Duck ($5.3K/s), and Golden Retriever ($4.8K/s). A counter shows how many slots are in use, such as 11/11 Active when every slot is full.
The panel gives you three controls:
| Button | What it does |
|---|---|
| Equip Best | Fills slots with your top earners |
| Unequip | Removes a pet from an active slot |
| +1 Equip [1.78B] | Buys one more active slot |
Equip Best is the fastest way to make sure a freshly placed Gold pet takes a slot from a weaker animal. When all slots are full, you have two choices. Unequip a low earner by hand, or save up for the extra slot, which costs 1.78B in the example above. That price is steep, so check whether swapping out your weakest pet already gets the mutated one into rotation.
Your pets keep paying while you’re away. The game displays an offline rate, such as “You earn $272.7M/Day Offline,” so a well-stocked lineup of mutated pets keeps building cash between sessions.
Tracking your collection in the Index
The Index button sits next to the Shop button on the main HUD. It’s the game’s collection book, and filling it with every animal is the long-term goal. As you pull more animals from eggs, including mutated ones, the Index is where you check what you already have and what’s still missing.
The routine for mutations is short. Run eggs, place every animal in your base, and read the label above it. Then let Equip Best, or a manual swap, put the highest per-second pets into your active slots. A Gold tag is a good sign, but the dollar figure next to it is what decides whether the pet earns its place.
