The Ultimate Mewgenics Database

Breeding calculator, complete trait & mutation database, boss guides, and 143+ item encyclopedia — everything you need to master Mewgenics.

Breeding Calculator Browse Database

Traits

Mutations

Bosses

143

Items

Classes

Tools & Calculators

Breeding Calculator

Calculate trait inheritance, inbreeding risk, mutation chance, and find the best class for your offspring.

Complete Database

Trait Database

Complete database of all 24 traits with effects, synergies, conflicts, and inheritance patterns.

Mutation Guide

All 20 mutations organized by body part — effects, rarity, and how to trigger them.

Boss Strategies

Detailed guides for all 22 bosses — attack patterns, weaknesses, and recommended teams.

Item Encyclopedia

143

143 items — weapons, armor, accessories, and consumables with full stats and descriptions.

Class Guide

All 9 character classes with unique abilities, recommended traits, and build strategies.

Featured Bosses

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Radical Rat

Act 1 - The Alley

Boris

Act 1 - The Sewers

Pyrophina

House

Zodiac

Act 2 - Desert region

Popular Traits

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About Mewgenics

Mewgenics is a tactical RPG roguelite from Edmund McMillen (The Binding of Isaac) and Tyler Glaiel. Breed cats with unique genetics, discover 200+ enemies, collect 900+ items, and master 1000+ abilities across a 200+ hour campaign.

Overwhelmingly Positive (96%)

65K+ peak concurrent players

200+ hour campaign

900+ items in game

View on Steam

Frequently Asked Questions

What is the Mewgenics Breeding Calculator?▼

Our breeding calculator helps you plan cat breeding in Mewgenics by calculating trait inheritance probabilities, inbreeding risk, mutation chances, and recommending the best class for offspring based on parent traits.

How many traits are in Mewgenics?▼

Mewgenics features 79+ traits that affect your cats' attributes. Traits can be positive (like Strong, Agile), negative (like Weak, Clumsy), or neutral. Our database currently covers 24 confirmed traits with full details.

How do mutations work in Mewgenics?▼

Mutations are genetic modifications that can occur during breeding. They affect specific body parts and can provide powerful bonuses. Factors like inbreeding, house stats, and trait combinations influence mutation probability.

Is Mewgenics.org official?▼

Mewgenics.org is an independent fan-made resource. We are not affiliated with Edmund McMillen, Tyler Glaiel, or the official Mewgenics development team. All game content belongs to its respective owners.