Everything one pet is made of
People say a pet is rare, or golden, or huge, as if those were the same kind of statement. They are not. One pet is six separate things stacked on one creature, and only some of them are decided by a roll when it hatches.
The easiest way to see it is to take one creature and walk it through every layer. Nutfern will do. It is the Common of World 1, the first pet almost everyone owns, and it can carry every layer on this page.
Every layer on one creature
- Species
- Nutfern: World 1, Common
- Form ladder
- Normal → Golden → Rainbow → Astral → Nova
- Size tier
- Base (×1), Big (×2), Giant (×4), Titan (×8)
- Shiny
- Any form: 0.5% (Shiny)
- Apex
- Apex is the top tier of the premium eggs, not a form of this species.
Layer one: the species
Nutfern is the creature, and that never changes. No machine, no upgrade and no reset turns a Nutfern into something else, so every layer below describes a particular Nutfern.
There are 70 creatures across the 10 live worlds, 7 per world, one for each rarity.
Layer two: the rarity
Nutfern is Common, and that comes with the creature. Rarity is never rolled on top of a pet. What the hatch rolls is which creature you get, and the rarity table is those odds: Common at 50.0525% down to Secret at 0.0025%.
Rarity sets the pet's base mining number, and the world it comes from multiplies that by five for every world past the first. Luck moves this layer and no other.
Layer three: the form
A Nutfern can be Basic, Golden, Rainbow, Astral or Nova, and the form multiplies its mining power by 1, 3, 9, 27 or 81. There are two ways to get one. The hatch can roll it outright, at 1.5% for Golden, 0.5% for Rainbow and 0.05% for Astral. Or you build it, by feeding copies of the same Nutfern into the Evolution Hub.
Nova is the exception. No egg produces one, and the machine that makes them can fail even with a full load.
Layer four: the shine
Shine is a straight yes or no, rolled at 0.5%, and it doubles mining power. It is not a form. It sits on top of any form, and a Shiny Nutfern and a plain Nutfern hold different rows in your collection.
Shine is the one layer that carries up the form ladder. Fuse Shiny copies and the result is Shiny too, with no roll.
Layer five: the size
Base, Big, Giant or Titan, rolled once per physical pet the moment it is created, and worth 1x, 2x, 4x or 8x on mining power and net worth alike. A Titan Common Nutfern is entirely possible: Titan lands on 1 in 150,000 pets.
Size is the one layer that does not carry. A crafted pet rolls its own size from scratch, so feeding a Giant Nutfern into a machine hands nothing up the ladder.
Layer six: the sign
Every pet that hatches is born under one of nine Zodiac signs: Dragon, Blaze, Claw, Bone, Bolt, Horn, Viper, Shadow and Web. The sign does not change what a pet mines. It is an identity marker, and contract boards can ask for a specific sign, so a stack of one creature is really several stacks.
Rolled at birth, or earned later
- Rolled the moment the pet exists: which creature you get and therefore its rarity, plus the form, the shine, the sign and the size.
- Earned later: a higher form, built from copies in the Evolution Hub.
- Never changes once rolled: the species, the shine, the sign and the size.
- Multiplies mining power: rarity and world, then form, then shine, then size, all multiplied together on one pet.
Can one pet carry every layer at once?
Yes. A Shiny Astral Titan Nutfern is a legal pet. Each layer is rolled or built on its own, so they stack instead of competing.
Which layer is worth the most?
Form, by a distance. Nova is 81 times the mining power of a Basic. Size tops out at 8 times and shine at 2 times, and both of those are rolls you cannot grind toward.
Why does my collection show the same creature twice?
Because a row is the full identity, not just the species. A plain Nutfern and a Shiny Nutfern are different rows, and a machine works on one row at a time.