Mewgenics breeding guide to create the strongest cats

Mewgenics breeding guide: A green cat on the left next to a white cat on the floor and their kitten.

(Image credit: Edmund McMillen, Tyler Glaiel)

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Breeding tips
House stats

Outside of combat, one of the main things you'll be doing in Mewgenics is breeding cats. It's how you get more budding warriors with better optimised stats and skills (better than the strays that show up each day), though it's far from straightforward. Mastering cat breeding is vital as you progress into harder stages, especially as the runs get longer and longer.

I'll say right now that it's vital to send your precious kittens to Tink early on to unlock more features, such as seeing your cats' sexuality, mood, libido, relationships, and more, that'll help you better optimise cat breeding.

How to breed cats in Mewgenics

Mewgenics breeding guide: A player looking at their house will of cats, with a main room and an attic. — (Image credit: Edmund McMillen, Tyler Glaiel)

Cats have a chance to breed with other cats in the same room at the end of each day (alongside other events like in-fighting). If and when cats breed, they'll give birth to one or sometimes two kittens, which can't be sent out on a run until they've had a day to grow up.

With only one room in your house at the start of the game, this'll mostly be down to luck, and you're bound to end up with a few pesky mutations as a result of inbreeding. However, as you progress and unlock house upgrades by sending retired cats to Frank, you'll have greater control over your cats' breeding.

Here are some tips to help you get started with breeding in Mewgenics:

Mewgenics breeding guide: A zoomed-in screenshot of the map, showing Tink's upgrades.

Give kittens to Tink early so you can unlock vital features sooner, such as seeing your cat's base stats and whether it's inbred or not.

Mewgenics breeding guide: A zoomed-in screenshot of the map, showing Frank's upgrades.

Get extra rooms by giving Frank retired cats to better manage breeding by placing Stimulation-boosting furniture in a separate room with your best cats.

Mewgenics breeding tips: A player holding a kitten called Selene as they move them from the attic to the ground floor.

Don't leave kittens in the same room as their parents, as they will end up breeding and creating inbred cats.

Mewgenics breeding tips: The stats of a cat named Selene.

Specific abilities are hard to intentionally pass on to offspring, so concentrate more on breeding cats with higher stats instead by placing all your cats with high base stats in one room. This also helps you better manage class collar distribution.

Mewgenics breeding tips: A stray outside the player's house.

Gay cats don't produce kittens, but every time they breed, they increase the chance for gay strays to appear that will inherit some of their stats and abilities instead.

Mewgenics breeding tips: The Furniture Box item viewed in the player's inventory.

Home stats matter, especially Stimulation. Higher Stimulation means a kitten is more likely to inherit the higher stat value between its parents. So, hold on to any furniture you find.

How house stats work in Mewgenics

Mewgenics breeding guide: A blueprint overlay of the player's house as they inspect a furniture item. — (Image credit: Edmund McMillen, Tyler Glaiel)

Each room in your home has five stats that influence the behaviour of your cats, which are influenced by the furniture you place in them. The higher these stats, the better:

Appeal: Affects the quality of the stray cats that show up each day.
Comfort: Affects how often cats will breed or fight.
Health: Affects lifespan and the chance to develop or cure disorders each night.
Stimulation: Affects the quality of newborn kittens.
Mutation: Adds a chance for cats to receive random mutations each night.

Take note that apart from Appeal, these stats are all specific to each room in your house. For example, you'll want more Stimulation and Comfort in whatever room you're dedicating to breeding, so move furniture around for optimal placement.

You can get more furniture by buying items from Baby Jack or finding Furniture Box items during a run. Make sure you don't equip the Furniture Box, as alluring as its bonus armour may be, as it'll break when damaged and you won't receive the furniture when you return home.

In the early stages, I had most of my furniture in the attic, which I made a breeding room, while the ground floor was home to the kittens, strays, and other cats I generally didn't want to breed. As you get more rooms, you can better hone in on specific stats or classes.

Rory has made the fatal error of playing way too many live service games at once, and somehow still finding time for everything in between. Sure, he’s an expert at Destiny 2, Call of Duty, and more, but at what cost? He’s even sunk 1,000 hours into The Elder Scrolls Online over the years. At least he put all those hours spent grinding challenges to good use over the years as a freelancer and guides editor. In his spare time, he’s also an avid video creator, often breaking down the environmental design of his favourite games. If you can’t track him down, he’s probably lost in a cave with a bunch of dwarves shouting “rock and stone” to no end.

With contributions from

Robin ValentineSenior Editor

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