Collect creatures with a variety of colours to choose from, and breed them together to make your own fully traceable ancestry trees. Explore and battle alongside your creatures to gather resources and help the research effort. Protochroma receives regular feature and creature updates, and creating an account is free. Learn more
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Help — Creature Mechanics

Species Traits

Each species has a set of traits that all individuals of said species share with one another:

  • Grouping: determines which species can breed together. Some species have more than one grouping.
  • Rarity: the higher the rarity, the less often the species appears in Sectors and produces offspring of its own kind when bred.
  • Time per stage: how much real-world time needs to pass for the species to mature from one stage to the next.
  • Location: Sector(s) the species appears in.

In Delving, all individuals of a species share the same regular attacks, as well as elemental weaknesses and resistances.


Groupings are assigned to a species according to its physical attributes and qualities. It is relatively rare for a species to have three groupings; most have one or two.

Groupings: Reptilian, Mammalian, Avian, Arthropod, Flora, Mechanical, Elemental, Aquatic, Celestial


Rarities: Very Common, Common, Uncommon, Scarce, Rare, Super Rare, Seasonal

Seasonal creatures are only available as Wild Caught for their yearly breeding season duration. They will also breed better during this time. When out-of-season, they will only breed true very rarely.

Individual Creature Traits

Each individual creature has a set of traits that are not bound by its species. Different traits are visible during each stage, with all traits being visible at the adult stage. Some traits are hidden for growing creatures when they do not have an owner.

All stages:

  • Origin: if a creature originates from a Sector, Delve, or pickup, it is wild caught. Creatures that are bred from others are captive bred.
  • Caught/Born: when the creature was first acquired.
  • Ancestry tree: the traceable ancestry of the creature.

Growing stages:

  • Time needed: real-world amount of time that must pass for the creature to mature to the next stage.
  • Time left: real-world amount of time the creature has left until it will die.

Juvenile and adult:

  • Sex: the physical sex of the creature. Along with species grouping, this determines what creatures can be bred together.
  • Personality: determines Delving tagalong AI and gives a small boost when two creatures with the same personality are bred together.


  • Chroma: the creatureʼs variant.

Accessing Species Info and Statistics

Species info can be found in FRIC. You can find general information such as rarity and variants, as well as detailed statistics. You can view global statistics as well as your own statistics per species.

FRIC will only have entries for already documented species. When a new species is discovered, it will appear in FRIC once its global population has reached a high enough number for Headquarters to create a detailed entry. If you wish to help the effort to document a new species, you are encouraged to collect and raise a few to help add to the pool of recorded individuals. New species cannot be filtered by their species name in searches until they have a FRIC entry.

Breeding Creatures

You can breed your adult creatures together to produce captive bred offspring that keep a viewable record of their ancestry via ancestry trees. Breeding two creatures together does not guarantee that they will produce, and the higher their rarity the less likely they are to breed true.

Two creatures must meet the following criteria in order to be bred together:

  • Share at least 1 grouping together.
  • Are either different sexes, or both are hermaphrodites.
  • Not on a breeding cooldown.

While not required for compatibility, the following will give a small boost to a breeding pair that increases the likelihood of them producing:

  • Having the same personality.
  • Being the same species (commonly referred to as purebred/purebreeding).

Regardless of whether or not they produce, after two creatures breed together they will not be able to do so again for 5 days. If you breed creatures while having no space for baby creatures, any resulting offspring will utilise your held creatures space. You cannot breed creatures if you have no space for held creatures. The result screen for breeding contains a link to the abandon prompt for successes, should you not want to keep the new offspring.

Ancestry Trees

All captive bred creatures can be traced all the way back to their wild caught ancestors via ancestry trees. The tree of a wild caught creature can be viewed, but it will only display said creature by itself. The ID box colour for wild caught and captive bred creatures are different for quick origin identification within the tree. The maximum amount of generations displayed in an ancestry tree is 8 (not including the creature whose tree is being viewed).

Ancestry Tree: Unnamed (ID: gs5jy)

You can view the tree of any creature displayed within a tree by clicking their thumbnail. Similarly, you can click their ID to go to their info page.