Joined a friend's zoo.
Built 15 attractions with a friend.
Invited a friend to your zoo.
Average animal happiness kept in the Green for 20 minutes.
Completed a challenge.
Researched an item.
Received an award.
Built every type of concession in the same zoo.
Upgraded an attraction to level 3.
Completed all 3 interactions with the animals.
Repaired an attraction or enrichment.
Upgraded an attraction.
Trained a member of staff up to level 3.
Hired a member of staff.
Built 1st exhibit.
Started your first zoo.
Had a successful Viral Advertising campaign.
Restocked the feeding stations 100 times.
Completed 25 treat interactions.
Completed 25 hose interactions.
Played with 25 animals.
Cleared up 1,000 pieces of poop.
Received 5 award in the same zoo.
Received all 20 awards in the same zoo.
Completed 25 Challenges.
Completed 100 challenges.
Increased Fame level 100 times.
Filled a photo album.
Filled all the photo albums.
Completed 5 scenarios.
Completed all the scenarios.
Bred an animal using one gifted from a friend.
Ran 10km.
Drove 25km.
Completed a scenario.
Have a guest rating of 10,000 in your zoo (Challenge Mode only).
Customized 50 different attractions.
Earned $100,000.
Earned $1,000,000.
Earned $10,000,000.
Bred a colour variant of an animal.
Researched 10 items.
Researched everything.
Bred every animal type.
Bred every animal and their colour variants.
Refilled the animal cleaning stations 250 times.
Released one of every animal type into the wild.
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