As each new update is added toPet Simulator X, the list of rare pets and the scroll bar inside the experience seem to do nothing but grow. From Golden, Rainbow, and then Dark Matter, pet variations are a rarity in their own right on top of the pre-existing rarity level system. In this list, we’ll be going over some of the rarest pets in Pet Simulator X and explaining how you can (or in some cases, used to be able to) obtain them.
Top two rarest pets of all time
Out of all of the pets in Pet Simulator X, the rarest one is theRainbow Huge Pegasus. This pet is only owned by one person and was purchased as anNFTin 2021 for around $23,000 USD. This pet is now up forsaleby its current owner for 1.7 million USD.
Rainbow Huge Pegasus
The second rarest pet in Pet Simulator X is theBlue BIG Maskotpet due to its expensive requirements. To receive this pet, players need to dress their Roblox avatar to reflect the style of Pet Simulator X developerBuildIntoGames. This may not seem like a hefty request until it’s mentioned that theheadbandthat the developer wears will cost you at least $1,500 USD to purchase from the avatar shop. The developer himself is reselling over 50 of these headbands for a price of 1.7 million USD each.
Though this pet is adorable, and everyone loves a collectible, few players have the Blue BIG Maskot pet, or even blink an eye at it, because of how pricey it is.

The rest of the pets mentioned below are also exceptionally rare but can be obtained in slightly more reasonable ways.
Exclusive Pets
Exclusive pets require some sort of purchase to obtain, whether with Robux through the in-game Exclusive Store or with real money by purchasing an official BIG Games stuffed animal or toy. Five of the rarest exclusive pets are listed below.
Related:How to Enchant Pets in Roblox Pet Simulator X
Mythical Pets
Mythical Pets are the rarest pets that players can hatch from Eggs. Though not confirmed, it’s been estimated by players that the chance of hatching a Mythical Pet can be as low as 0.000001%. For pets as rare as the Mythical Dominus Alienus, this hatch chance can be as low as 0.00000137435%. Readers can find a list of five of the rarest Mythical Pets below.
Legendary Pets
Legendary Pets are the rarity directly under Mythical Pets and can be hatched from Eggs. Though their hatch chance is higher than Mythical Pets, the chance is still relatively low overall. Readers can find five of the rarest Legendary Pets below.
Related:How to get Legendary Pets in Roblox Pet Simulator X
Epic Pets
Epic Pets fall a bit behind the rarity Legendary Pets and can be hatched from Eggs. Epic Pets are much more likely to be obtained than the other pets mentioned above, though they are still rare. Readers can find five of the rarest Epic Pets below.
Rare Pets
Rare Pets are the final level of pet rarity besides Basic Pets and are fairly common. Readers can find five of the rarest Rare Pets below.
Though there is another level below Rare, each Basic level pet is highly obtainable, so they all have around the same rarity. That’s not to say that Basic pets can’t still be awesome companions, however, because they definitely can!

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Keep in mind also, that the rarity of pets is constantly changing! This list tries its best to be as accurate as possible, but with players across the world hatching eggs every second, pets are constantly fluctuating between becoming more common or more rare.
Looking for more Pet Simulator X content? Check out our recent guide onHow to unlock the Trading Plaza in Pet Simulator X!







