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Best animals in Build a Zoo: the full tier list

Best here means one thing only: income per second, the number the game itself pays. There is no trading market to price animals by. All 51 documented animals are tiered below. Sixteen stand on published figures, exact for the event animals and approximate for four core animals, and the other 35 stand on arranged estimates interpolated inside their rarity bands from the game's egg and conveyor ladder. Every row carries its basis, so an exact rate and an estimate never wear the same clothes.

S tier

The elite of the whole roster. The exact published leaders sit here: Gobbles and Leshen above $28K/s, the Divine pair Roach and Mapleantler, and the Mythical pair Cheshire and Pippin, all event animals whose events have ended. The arranged estimates put the Prismatic pool pair, the Dragon and the Orangutan, in the same band, which is where a 37.8 billion cash conveyor says they belong. If you own an S tier animal, it anchors your plot: feed it your best mutations and build the rest of the zoo around it.

A tier

Serious earners a single animal deep. Huginn and Cobbler carry exact published rates above every core animal, and the Legendary and Mythical estimates fill the tier out: the big conveyor animals like the Rhino, Dinosaur and Gorilla, estimated inside their bands. This is the tier a mid game zoo is built from, so when a tier A egg rolls past and you can afford it, it is rarely a wrong buy.

B tier

The working core. The Snake, Panda, Tiger and Fox carry the only approximate published core rates and lead this tier on paper, the Epic estimates sit alongside them, and Mavis, Lucas, Christine and Tater close out the event animals. Approximate and estimated both mean the same thing here: use this tier to plan your next purchases, not to settle arguments about exact rates.

C tier

The starter shelf: every documented animal under $1,500/s, which in practice means the Common, Uncommon and Rare animals from the cheap eggs at the bottom of the ladder. Every figure here is an arranged estimate. None of these animals carries a zoo on its own, but a full plot of them is how every zoo on this page started, and they are the animals a new player will actually hatch this week.

How to use this list

If you played the 2025 events, your best animals are already on this page: keep them, mutate them, and let them fund your conveyor climbs. If you started after the events, work the tiers from the bottom up: fill the plot with C tier animals, buy B tier eggs when they roll past, and let the conveyor ladder carry you toward the estimated A and S tier pools. Mutations multiply whatever you hatch, so they reward climbing first. The making money fast guide puts those pieces in order.

Last updated: November 5, 2026

Facts checked on November 5, 2026 against the Build a Zoo wiki on BloxInformer, the TechWiser egg and conveyor guides, Pro Game Guides event, mutation and beginner guides, and the November 2026 code lists named on the codes page. eggvalues.com is a fan site and is not affiliated with Century Farmers or Roblox Corporation. Build a Zoo has no player trading yet, so this section publishes no trade values: rankings use an income index built from the figures on this page.