Traits & Mutations

Whiskerkin are highly unstable, lab-created rodents capable of an enormous range of mutations. While creativity is encouraged, all designs must still follow the species’ core biological rules.

Base Species Structure

Must have a rodent/mouse-based body plan
Must have two tails (mutated tails are allowed)
Must be at least 50% biological/living material
Must remain a small mammal in overall structure (unless a Wise One)

                Whiskerkin may not be fully mechanical, fully skeletal, or entirely non-living constructs.
            

Core Mouse Traits

Every Whiskerkin must visibly have at least 2 of the 4 core mouse traits. These may be stylized, partial, or mutated as long as they remain recognizably rodent.

Muzzle — Rodent-style snout, nose, whisker pad, or jaw structure
Ears — Mouse or rodent ears (any size, shape, or number)
Tail — A rodent-style tail (in addition to the required second tail)
Paws — Rodent-style feet or paw structure

Trait Swapping

Core traits may be replaced by mutations as long as two rodent-themed traits remain.

One rodent tail + one reptile tail ✔
Hooves instead of paws, but rodent ears and muzzle ✔
Insect mandibles replacing muzzle, but rodent ears and paws ✔

Mutation Limits

There is no limit to the number of mutations a Whiskerkin may have, provided the core rules are still met.

                Must still have two tails
Must still have 2 rodent-style core traits
Must remain at least 50% biological
More than two eyes is only allowed for Wise Ones

            

Trait & Mutation Categories

🟢 OPEN

Free to use. Not unique and have no requirements.

🔒 CLOSED (Lineage Traits)

Locked traits that can only pass down through breeding and serve as lineage markers.

🐭 MISCHIEF Traits

Traits tied to a specific Mischief. Physical traits require breeding or starting in that Mischief. Accessories can be added after joining.

✨ SPECIAL

Traits locked behind special conditions such as RLC, events, supporter rewards, or holidays.

Types of Mutations

Minor Mutations

Small visual or cosmetic changes such as extra ears, glowing markings, or transparent patches.

Major Mutations

Large structural changes like wings, extra limbs, aquatic traits, insect features, or skeletal exposure.

Extreme / Experimental

Unusual biological anomalies such as floating limbs, fungal growths, shadow appendages, or glowing internal organs.

Wings

Small wings are cosmetic only
Medium to large wings allow gliding or short flight bursts (under 30 seconds)

Abilities

Abilities are minor, flavor-focused, and never “god mode.” They often mimic real animal traits or strange experimental effects.

Mild venom
Bioluminescent skin
Defensive spines
Minor regeneration
Small flame breath (lighter-sized)

Psychic Limits

Telepathic communication is possible but uncommon
Telekinesis is usually weak and short-range
Mind reading and future sight are rare, unreliable, and flawed

Wise One Traits

Third eye
Larger size
Stronger psychic potential (still limited)
May develop additional mutations

Only Wise Ones may have more than two eyes.

Design Checklist

✔ Two tails
✔ At least 2 rodent-style core traits
✔ At least 50% biological
✔ Extra eyes only if Wise One
✔ Abilities are minor and not overpowering