Pets

Introduction

Pets are your earners in Steal Animal Egg. Every egg you hatch becomes a pet, and every pet generates cash per second based on its rarity, weight and mutation — the three traits that roll independently when the egg hatches. The game currently tracks well over two hundred pets, spread across ten rarity tiers from Common through Cosmic, Secret, Eternal and Divine. Each biome's egg pool contains roughly eight pets, so the biome you farm determines which pets you can collect, and filling your Pet Index gives permanent Speed and cash boosts that make collection a core strategy rather than a side hobby. Beyond the base pool, fusion exclusives like Equinox and Aetheron are created by combining three identical pets at the Secret Shrine, and premium eggs add exclusive families like Skeletal and Luminous variants. The pets hub explains how each rarity tier compares, how fusion works safely, which pets are the best earners per biome and how to prioritize your collection so your index bonuses compound as fast as possible.

Pet Rarity Quick Reference

Featured Pets

Core Mechanics

When an egg hatches, Steal Animal Egg rolls the pet identity from the egg's pool, then rolls two additional traits independently: a mutation (such as Silver, Golden or Rainbow) and a weight in kilograms. Your pet's actual income is roughly the base rarity income multiplied by the weight multiplier and then by the mutation multiplier, which is why a huge common pet with a good mutation can outperform a plain rare pet — the size multiplier multiplies the whole base number. Cash earned per second accrues passively while you play and continues even when you are out raiding eggs, which is the game's idle hook. Pets can be upgraded in two main ways: the Fuse Machine combines three identical pets of the same mutation into an upgraded version, and the Rift Machine sacrifices sets of specific pets for rare eggs. Completing the Pet Index grants permanent boosts, reflecting the collection focus of the game. Because incomes scale into billions per second at the Divine tier, the exact numbers change with weekly balance patches, so guides always date their tables and players treat community-sourced figures as approximations rather than official formulas.

Advantages

Mastering the pet system is what separates a slow grinder from a player who snowballs. Because income multiplies across rarity, weight and mutation, a single well-rolled pet can carry your whole economy — so knowing which traits to look for turns random hatching into targeted farming. The Pet Index gives permanent Speed and cash bonuses, which makes collecting one of every pet in your current biome a direct power boost instead of a completionist distraction. Fusion provides a reliable free-to-play path to higher rarity, and the Rift Machine opens the door to Divine pets for players who do not spend Robux. The pets hub also exposes hidden value: underrated low-rarity pets with great mutations can out-earn flashy rares, so you can flip your collection for better cash generation simply by evaluating weight and mutation before selling. Finally, having a complete pet database helps you trade intelligently, because you know what a specific pet is worth in the community market before you agree to a deal.

Challenges

The main challenge with pets is randomness: rarity, mutation and weight all roll independently and none of the odds are officially published, so you can hatch dozens of eggs without seeing the pet you want. Community pet lists disagree on the exact count and on some income numbers, which means guides should be cross-checked with current in-game values. Higher rarity pets are locked behind either far biomes, premium eggs or expensive fusion recipes, so the path to Divine-tier pets can feel pay-walled for free players. Fusion also has a real trap: merging three pets with different mutations can erase the rarer mutation, wasting a valuable Silver or Golden pet. Finally, because balance patches land weekly, a pet that is S-tier this patch can slip to B-tier after an update — so the pets hub dates its rankings and players should treat tier advice as a snapshot rather than a permanent law.

Frequently Asked Questions

Quick Tips