intermediate mechanics

How to Breed Cats in Mewgenics — Complete Breeding Guide

Learn everything about cat breeding in Mewgenics, including inheritance mechanics, stat priorities, gender and orientation, mutations, and tips for creating powerful offspring.

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Breeding is one of the core mechanics in Mewgenics. Since cats retire after each adventure, your next team always comes from your breeding pool. Understanding how breeding works is essential for long-term success.

How Breeding Works in Mewgenics

Breeding happens automatically between days. When you end a day (turn off the lights), compatible cats in your home will attempt to mate and produce kittens. The key factors are:

  • Gender: You need male and female cats (though the game handles this more flexibly than expected)
  • Compatibility: Cats must have a positive relationship
  • Proximity: Cats should be in the same room or adjacent rooms
  • Aggression: High-aggression cats may fight instead of mating

Kittens are born the next day and can be sent on adventures immediately, though they start at level 1.

Stat Inheritance in Mewgenics

Kittens inherit stats and traits from both parents. Here’s how it works:

Core Stats

Each cat has core stats that are influenced by their collar (class) and inheritance:

  • HP — Health points
  • Attack — Physical damage
  • Defense — Damage reduction
  • Speed — Turn order priority
  • Luck — Critical hit chance and event outcomes

Kittens receive a blend of their parents’ base stats with some random variation.

Ability Inheritance

This is where breeding gets strategic:

  • Skills are mostly inherited from a single parent (not both)
  • Passive abilities are more likely to pass down than active ones
  • The room’s Simulation stat (affected by furniture) influences which abilities transfer
  • Higher Simulation = more reliable inheritance

Mutations and Defects

Mutations can be inherited and include:

  • Physical mutations: Extra heads, larger claws, thicker fur, rat tails, porcupine quills
  • Beneficial mutations: Stat bonuses, unique abilities
  • Disorders: Negative effects like Scatological, ADHD, Dyslexia, Schizophrenia

Inbreeding increases the chance of both mutations and disorders. It’s a risk-reward system — sometimes the best abilities come with unfortunate side effects.

Key Breeding Stats in Mewgenics

Aggression

Controls how likely a cat is to fight with housemates. High aggression cats:

  • May attack potential mates
  • Can injure or kill other cats
  • Are harder to pair up

Keep aggressive cats separated from others, or breed them with low-aggression partners to balance offspring.

Libido

Affects how willing a cat is to breed. Higher libido means:

  • More frequent breeding attempts
  • Higher chance of successful mating
  • Potentially more kittens per cycle

Breeding Status

Some cats may have conditions that affect breeding:

  • Infertile: Cannot produce offspring
  • Eternal kitten: A disorder caused by inbreeding — the cat never matures and cannot breed
  • Pregnant: Already carrying kittens

Affinities

Cats develop preferences for mates based on:

  • Shared time together
  • Personality compatibility
  • Gender and orientation (revealed by upgrading Tink)

Breeding Tips for Mewgenics

Upgrade Tink Early

The NPC Tink reveals hidden information about your cats, including:

  • Sexual orientation
  • Whether they’re inbred
  • Likes and dislikes
  • Compatibility indicators

Without Tink’s information, you’re breeding blind. Donate kittens to Tink to unlock these vital details.

Plan Your Lineages

Once you understand a cat’s abilities and stats, plan your breeding pairs intentionally:

  1. Identify which abilities you want in the next generation
  2. Pair cats with complementary stats
  3. Consider which collar the offspring will wear
  4. Track family trees to avoid excessive inbreeding

Use Furniture to Your Advantage

Different furniture items affect home stats that influence breeding:

  • Comfort — Keeps cats healthy and willing to breed
  • Simulation — Improves trait inheritance reliability
  • Other stats — Various furniture pieces provide different bonuses

Upgrade Baby Jack (the furniture NPC) to unlock better options.

Embrace the Chaos

Despite all your planning, Mewgenics’ breeding has a significant random element. Sometimes you’ll get amazing kittens with perfect trait combinations. Other times, you’ll get inbred kittens with three disorders and no useful abilities.

This randomness is part of the game’s charm. The best strategy is to breed often, keep your best offspring, and donate the rest to NPCs for upgrades.