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Build a Base and Steal Guide
Pets

Build a Base and Steal Get Pets Guide

Every documented path to new pets: rolls, steals, event mutations, the pet Index, and the rebirth requirements that tell you which animals to keep.

Checked 2026-10-0630 documented pet entries
Quick answer

The short version

Roll for pets at your base, steal exposed ones from other players, and grow the collection toward the 29-pet rebirth requirement. Luck boosts from codes and events tilt the rolls; the Index pays permanent bonuses as the collection grows.

Path one: rolling at your base

Rolling is the public, low-risk acquisition path. You spend Cash, the game adds a pet, and the official description's 'roll for rare pets' line is the creator's own framing of this mechanic.

Roll outcomes improve with Luck. The documented code rewards are temporary boosts (+2 to +4 Luck for 5-10 minutes), and each rebirth tier pays a permanent Luck multiplier that climbs from 2x to 208x across the ladder. Serious collectors therefore chain codes before rolling sessions.

The mutation system published by Sportskeeda (August 5, 2026) adds a roll-only tier: the Golden mutation (1.5x income and sale value) comes exclusively from Pet Rolls, no event required.

Path two: stealing from other bases

Stealing is the second acquisition path and the one the game is named after. Gear opens another player's base; an exposed pet can be carried home and put to work earning Cash per second.

The steal path rewards preparation over speed: know the approach, keep a pet slot free, and return before the owner's counter-raid catches your base exposed. A stolen pet only counts as progress once it is earning inside a defended base.

Because required rebirth pets must stay in your base until the reset is claimed, a stolen rare can also complete a rebirth tier you were stuck on - the ladder requirements run from Cat and Chicken at tier 1 through mythicals like Hydra, Qilin, and Pegasus in the upper half.

Path three: event mutations and the Index

Events do not add species, they upgrade the pets you already own. During a Cosmic Invasion, a spaceship abducts pets from your base and returns them with the 2x Cosmic mutation. The Volcano event has a smaller chance to mutate base pets with the 3x Inferno mutation. Admin Abuse windows, run by the developer after updates, produce the 4x Admin mutation.

The pet Index pays permanent Luck and Cash boosts as your collection grows, so every duplicate-adjacent species still has collection value even when its income line looks weak.

A pet holds a single mutation, and mutations cannot be transferred - so a mutated duplicate is usually a seller, and mutated core earners stay in the base.

Which pets to keep (documented names)

The published rebirth table names 30 pet entries across the 16 tiers, from farm animals (Cat, Chicken, Bunny) through dinosaurs (Stegosaurus, Velociraptor, Mammoth) to mythicals (Sphinx, Pegasus, Roc, Hydra, Qilin, Simurgh, Dragon, Unicorn, Fairy, Mermaid).

Pro Game Guides counts the total as 29 different pets including Fish-type pets and Golden-mutation variants; the one-pet difference comes from counting Gold Unicorn, Gold Dragon, and Golden Kitsune as variants rather than species.

The practical takeaway: hold one of each requirement species rather than selling duplicates blindly, because each rebirth checks for the specific pair at claim time.

Reference

The documented mutation multipliers

Mutations are the quality system that makes any pet - rolled or stolen - worth more.

All four documented mutations
MutationMultiplierHow obtainedNotes
Golden1.5x income and sale valuePet Rolls onlyNo event requirement; roll luck decides when a Golden appears.
Cosmic2x income and sale valueCosmic Invasion eventA spaceship abducts pets from your base and returns them mutated.
Inferno3x income and sale valueVolcano eventThe event spawns a volcano, and pets in your base have a small chance to return mutated.
Admin4x income and sale valueAdmin Abuse events onlyDeveloper-run windows announced after updates; the community Discord tracks them.

Source: Sportskeeda mutations guide (2026-08-05). Checked 2026-10-06.

Roster

Species named in the published sources

these 30 names come straight from the published rebirth requirements table, so they are the safest species set to plan around

these 30 names come straight from the published rebirth requirements table, so they are the safest species set to plan around: Cat, Chicken, Bunny, Bat, Owl, Llama, Zebra, Elephant, Lion, Stegosaurus, YiQi, Mammoth, Velociraptor, Azhdarchid, Gargoyle Bat, Cockatrice, Sphinx, Pegasus, Roc, Hydra, Qilin, Simurgh, Dragon, Unicorn, Golden Kitsune, Gold Unicorn, Gold Dragon, Gnome, Fairy, Mermaid.

the ladder moves from farm and woodland animals (Cat, Chicken) through dinosaurs (Stegosaurus, Velociraptor) to mythicals (Hydra, Qilin, Pegasus) and ends at Fairy and Mermaid.

Golden Kitsune, Gold Unicorn, and Gold Dragon are Golden-mutation variants of base species, which is why Pro Game Guides counts 29 unique pets while the table lists 30 names. every pet earns Cash per second; higher-ladder species are the income engines that make late rebirth costs reachable.

Source: Sportskeeda rebirth table + Pro Game Guides pet-count summary. Checked 2026-10-06.

FAQ

Pet questions

How many pets exist in Build a Base and Steal?

The published rebirth table names 30 pet entries across 16 tiers; Pro Game Guides counts 29 unique species once Golden variants are tallied separately. A complete live roster beyond the rebirth requirements has yet to be documented by a creator-owned source.

How do I get a Golden pet?

Golden is the only roll-exclusive mutation: 1.5x income and sale value, obtained through Pet Rolls only, per the Sportskeeda mutation table published August 5, 2026.

What is the fastest way to grow the collection?

Chain a Luck-boost code, then roll in bursts; rebirth as soon as a tier's requirements are met because each tier permanently raises Luck (2x up to 208x), which improves every later roll.

Are event pets better than rolled pets?

Events mutate pets you already own - Cosmic 2x, Inferno 3x, Admin 4x - so the strongest animals are usually strong base species caught by an event window.

Can I transfer a mutation to another pet?

No. A pet holds a single mutation and mutations cannot be moved between pets.

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