Here is the full list of all 13 Fantasy Friends achievements.
Use an involution potion to become a baby again!
Unlock your first item.
Evolve a pet.
A new creature is born! Welcome!
Unlock your first skin.
Unlock your first egg.
Complete the tutorial.
Interact with one decorative object in the forest
Play all the activities with your pets
Unlock all the achievements.
Unlock all the skins.
Get all twelve pets.
Your pet fell asleep for the first time!