Let's Build a Zoo

45 achievements

Ultra Rare×21

Very Rare×10

Rare×4

Uncommon×4

Common×6

About Let's Build a Zoo's achievements

Let's Build a Zoo has 45 Steam achievements, 21 of them ultra-rare — unlocked by under 5% of players. The rarest is "Criminal Mastermind", earned by just 0.4% of players. Below is the complete achievement list with global rarity and a full achievement difficulty breakdown.

Rarest achievement

0.4%

of players earned "Criminal Mastermind"

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Difficulty—

Easy → Brutal

Enjoyment—

Meh → Loved it

Grindiness—

No grind → Huge grind

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All Let's Build a Zoo achievements

45 achievements

Criminal Mastermind

Have 200 evil points.

Ultra Rare0.4%

GORSD

Hire 6 different types of mascots

Ultra Rare0.6%

Map Master

Map 56 standard animal Genomes.

Ultra Rare0.7%

Dino-Mite

Discover all 51 Dinosaurs/Animals.

Ultra Rare0.7%

The Saint

Have 200 good points.

Ultra Rare0.8%

Land Owner

Buy every plot of land in the starting zoo.

Ultra Rare0.9%

Seas the Day!

Collect 50 Aquatic Animals

Ultra Rare0.9%

Whale Done

Get a blue whale

Ultra Rare1.1%

Factory Boss

Have at least 6 unique types of evil factory operating in your zoo.

Ultra Rare1.3%

Pearlfect

Build a Jeweller

Ultra Rare1.7%

Lion City

Complete the trade for the Lion in Singapore.

Ultra Rare2.3%

Decorator

Get a Deco Rating of 100%.

Ultra Rare2.3%

Bernie And Friends

Employ a Bernie mascot.

Ultra Rare2.4%

Death Metal Death

Complete all Critical Choices for King Sapphire.

Ultra Rare2.4%

Broken Teeth

Break some teeth.

Ultra Rare2.9%

Tastes Like Bacon

Build a bacon factory.

Ultra Rare3.1%

A Mammoth Discovery

Complete the dig for the Mammoth.

Ultra Rare3.5%

Sea Monster

Create your first marine hybrid

Ultra Rare3.8%

Ticket Master

Sell a ticket for at least 100 dollars.

Ultra Rare4.1%

Pooped Out

Build a Bio-waste Storage in Dinosaur Island.

Ultra Rare4.1%

Superior Researcher

Research 233 things.

Ultra Rare5.0%

Bad Hot Dog

Sell a Hotdog at the worst possible quality.

Very Rare5.7%

Monster Matinee

Complete all Kaiju Cosplay quests.

Very Rare5.9%

Sky Writer

Get a flying visit!

Very Rare6.0%

He Sells Sanctuary

Complete the Goth quests.

Very Rare6.8%

First Catch

Get first fish from either boat

Very Rare7.2%

Big Birther

Your breeding program must produce 100 babies (Nursery births only).

Very Rare9.5%

Dinosaur Rebirth

Clone your first dinosaur.

Very Rare10.4%

Gonky

Employ a Gonky mascot.

Very Rare12.2%

Route Planner

Unlock 5 bus routes.

Very Rare13.5%

New Zoo

Unlock a second zoo on the world map.

Very Rare13.8%

Dealer

Sell 10 animals to the black market.

Rare15.3%

Cash King

Earn at least $50000 in a single day.

Rare17.6%

Protest

Have a visit from a protestor.

Rare24.0%

Captain Cola

Convince Captain Cola to run a promotion at your zoo.

Rare27.7%

Cartographer

Map your first Genome.

Uncommon30.6%

Super Trader

Complete 10 trades with other zoos.

Uncommon34.0%

Transport Mogul

Own at least 10 buses.

Uncommon34.2%

Fired Up

Fire an employee.

Uncommon40.6%

Hybrid Moments

Create your first hybrid animal.

Common51.6%

Researcher

Research 20 things.

Common55.1%

Green Machine

Build your first Wind Turbine.

Common58.0%

Trampoline

Buy a trampoline for your zoo.

Common59.8%

Snitch

Send a member of the black market to prison.

Common60.5%

Have a baby!

One of your animals must give birth.

Common83.8%