Pets are the fastest way to raise your stat multipliers in +1 Muscle Evolution, the Roblox clicker where you tap to train, beat enemies to clear stages, and bank Wins as the main currency. Every pet hatches from an egg, and each egg carries its own price and its own pool of animals with fixed drop rates.
Quick answer: Buy an egg with Wins (or Robux for the 67 Egg), hatch it, and the game rolls one pet from that egg’s pool at the listed odds. There are seven eggs and more than 20 pets total.
Every egg, cost, and pet in +1 Muscle Evolution
Eggs appear in the lobby. Six of them cost Wins, which you earn by clearing stages, and the 67 Egg is the only one that costs Robux. When you hatch, the game picks a single pet from the pool below using the percentages shown. Lower drop chances usually mean stronger stat boosts, so the rarest pet in each egg is the one worth targeting.
| Egg | Cost | Pets and hatch chances |
|---|---|---|
| Basic Egg | 100 Wins | Dog (42%), Cat (31%), Bunny (18%), Bee (9.2%) |
| Better Egg | 25,000 Wins | Monkey (38%), Koala (31%), Panther (18%), Tiger (9.2%), Parrot (3.1%) |
| Rainbow Egg | 1,000,000 Wins | Magic Cat (38%), Mushroom Bear (31%), Ruin Butterfly (18%), Magic Dog (9.2%), Magic Dragon (3.1%) |
| Magma Egg | 150,000,000 Wins | Lava Dog (38%), Lava Bunny (31%), Lava Hedgehog (18%), Lava Bat (9.2%), Lava Wyvern (3.1%) |
| Circus Egg | 7,500,000,000 Wins | Circus Elephant (66%), Circus Tiger (20%), Circus Chicken (12%), Circus Parrot (2%), Kistune (0.1%) |
| Coconut Egg | 125,000,000,000 Wins | Fish (66%), Flamingo (20%), Shark (12%), Pirate Parrot (2%), Pirate Octopus (0.1%) |
| 67 Egg | 79 Robux | Dominus (70%), Royal Dog (27%), Huge Money Wyvern (3%) |
The Coconut Egg is the most expensive, sitting at 125 billion Wins. The Circus Egg is the next steepest at 7.5 billion. Everything else scales down sharply, so the Basic Egg at 100 Wins is where most players start.
The rarest pets: Kistune and Pirate Octopus
Two pets sit at the very bottom of the drop table. Kistune has a 0.1% chance in the Circus Egg, and Pirate Octopus has a 0.1% chance in the Coconut Egg. Both are the hardest pulls in the game, which makes them the most sought-after animals for players grinding those high-cost eggs.
Because hatching is pure RNG, there is no guaranteed way to force one of these pets. Your best approach is to keep buying and hatching the relevant egg repeatedly. The more rolls you make, the more chances you get at the 0.1% pet.
How pets boost your stats
An equipped pet grants stat multipliers and follows your character as a permanent companion that other players can see. The important part is that these effects stack. If you equip more than one pet, their bonuses combine.
For example, the Dog gives a +1.1 Strength Multiplier and the Monkey gives a +1.3 Strength Multiplier. Running both together adds up to a +1.4 increase to your Strength Multiplier. That stacking is why filling your pet slots with the highest-boost animals matters more than hoarding common ones.
How to earn Wins for eggs
Wins come from clearing stages. To earn them, tap rapidly to beat the enemies in a stage, then stand on the green or yellow platform at the end to collect your reward. Raising your character’s Damage and Level lets you win fights faster, which speeds up how quickly you bank Wins for the next egg.
There is also a premium route through the Store. The Starter Pack, Pro Pack, and Ultimate Pack each cost Robux and hand over Wins, Health, Pet Slots, and more. These are optional shortcuts rather than requirements.
Where hatched pets go
Every pet you hatch is added to your Pets inventory, so you can review what you own and pick which ones to equip. Since bonuses stack, the goal over time is to replace early common pets like the Dog and Cat with the rarer, higher-multiplier animals from more expensive eggs. Keep rolling the egg that holds the pet you want, and equip the strongest ones you pull as you climb through the stages.
