Mewgenics Breeding Guide: How Breeding Works

Breeding in Mewgenics happens automatically when you end the day, and it is driven by room stats, cat traits, and base stats rather than gear or temporary bonuses. Cats in the same room may pair up, form bonds, and produce kittens that inherit stats, mutations, and traits from their parents. If you want strong cats long term, breeding is not optional, it is the backbone of progression.

This system is deep on purpose and easy to mess up early. Once you understand what actually transfers to kittens and what does not, breeding becomes predictable instead of random.

How Breeding Works In Mewgenics

Breeding attempts happen when you end the day. Cats that share a room may try to mate, and successful pairings can result in 1 or 2 kittens.

Cats that breed repeatedly will form bonded pairs and prefer each other. Charm affects how attractive a cat is to partners, and Libido affects how often they attempt to mate.

Not every pairing results in kittens, and not every kitten is good. The system heavily rewards planning over luck.

Room Stats And Furniture Effects

Furniture placed in rooms directly affects breeding outcomes. Most stats apply only to the room they are in, except Appeal, which affects the entire house.

Comfort affects how relaxed cats are
High Comfort increases breeding frequency
Low Comfort increases fighting
Stimulation affects inheritance
High Stimulation causes kittens to inherit the higher base stat from each parent
This matters a lot for building strong stat lines
Health affects survival and disease
Low Health increases disease spread and sudden deaths
High Health can cure injuries or extend lifespan
Mutation affects mutation chance
Higher values increase the chance of mutations, most of which are beneficial
Appeal affects daily strays
High Appeal brings better stray cats
Low Appeal brings weaker ones

Each cat in a room reduces Comfort by 1. Poop in a room also reduces Comfort by 1. Yes, it adds up fast.

Base Stats Versus Modified Stats

This is the most important breeding rule in the game.

Kittens only inherit base stats.
Bonus stats from gear, effects, or temporary modifiers do not count.

Base stats are shown only after unlocking Tink upgrades. If a parent has inflated stats from bonuses, those bonuses are ignored for breeding.

Injuries that reduce stats are ignored
Mutations and disorders are inherited separately
Base stats are the only guaranteed inheritance

If both parents have a stat at 7, but that value includes bonuses, the kitten may be born with a lower true base stat.

Mutations, Disorders, And Diseases

Mutations are usually good. Most give a plus in one stat and a minus in another, resulting in a net gain.

Some rare mutations give only positive effects. These are extremely valuable and worth breeding forward.

Disorders are always inherited if present. Diseases can spread between cats and are more dangerous.

Cats can recover from diseases by

Staying in high Health rooms
Random recovery after battles
Certain events

If a disease is contagious, move the cat out of shared rooms or remove them from the house entirely.

Sexual Orientation And Ditto Cats

Cats have sexual orientation traits that affect breeding outcomes.

Heterosexual cats breed normally
Gay cats will mate with the same sex but cannot produce offspring
Bisexual cats can mate with any sex

Ditto cats are gender fluid and can act as either parent.

Ditto cats can breed with male or female cats
Ditto cats can breed with other ditto cats
Ditto cats allow gay cats to pass on traits

Ditto cats are extremely valuable for controlled breeding.

Family Tree And Inbreeding

Inbreeding is common and usually bad. Even distant relatives can produce inbred kittens with defects and reduced stats.

To avoid inbreeding

Bring in stray cats regularly
Check the family tree before grouping cats
Use icons to mark bloodlines
Never breed cats from the same lineage together

The family tree tool is not optional if you care about quality.

Using Fighting To Boost Stats

Cats can fight if

Comfort is low
Aggression is high
Rivalries form from interrupted mating

The winner of a fight gains a random stat boost.

You can intentionally create a low Comfort room as a fight room. Place weaker cats there and let them fight until stronger ones emerge. It is cruel, efficient, and absolutely intended.

Final Blurb

Breeding in Mewgenics rewards patience, planning, and ruthless decision making. Strong cats are built across generations, not single runs. Once you understand base stats, room control, and lineage management, breeding stops feeling random and starts feeling powerful.