Here is the full list of all 110 School of Dragons achievements.
Visit 10 different friends.
Catch 25 eel.
Play single player Thunder Run Racing 10 times.
Collect 30 sheep.
Collect 15 sheep.
Play Fireball Frenzy 5 times.
Collect 5 sheep.
Get 25 A+'s in Flight Club.
Get 20 A+'s in Flight Club.
Harvest 300 pumpkins.
Play with your dragon 10 times.
Catch 100 fish.
Shear sheep 50 times.
Shear black sheep 25 times.
Harvest 150 pumpkins.
Harvest 90 pumpkins.
Harvest corn 150 times.
Collect 15 chicken eggs.
Shear black sheep 10 times.
Harvest 30 pumpkins.
Catch 10 salmon.
Visit 40 different farms.
Make 5 friends.
Feed your dragon 100 fish.
Play single player Thunder Run Racing for the first time.
Harvest corn 75 times.
Visit 25 different farms.
Catch 50 fish.
Harvest corn 45 times.
Visit 15 different farms.
Harvest corn 15 times.
Harvest 100 dragon nip.
Visit 10 different farms.
Feed your dragon 75 fish.
Feed your dragon 50 fish.
Play Fireball Frenzy for the first time.
Harvest 50 dragon nip.
Harvest 30 dragon nip.
Make 1 friend.
Feed your dragon 25 fish.
Harvest 10 dragon nip.
Shear sheep 25 times.
Shear sheep 10 times.
Catch 10 eel.
Visit a friend for the first time.
Join a Clan.
Catch a fish for the first time.
Complete 25 different Flight Club lessons.
Complete 20 different Flight Club lessons.
Get 10 A+'s in Flight Club.
Complete 15 different Flight Club lessons.
Get 5 A+'s in Flight Club.
Complete 10 different Flight Club lessons.
Get an A+ in Flight Club.
Complete a Flight Club lesson for the first time.
Fly with Toothless.
Make 10 friends.
Create your own Clan.
Visit 15 different friends.
Visit 25 different friends.
Visit 40 different friends.
Play Fireball Frenzy 15 times.
Play Fireball Frenzy 25 times.
Play Fireball Frenzy 40 times.
Get an A+ on 3 Meatlug lessons.
Get an A+ on 3 Groundsplitter lessons.
Get an A+ on 5 Night Fury lessons.
Play single player Thunder Run Racing 20 times.
Play single player Thunder Run Racing 30 times.
Play single player Thunder Run Racing 50 times.
Get First Place in a Thunder Run race 5 times.
Get First Place in a Thunder Run race 10 times.
Get First Place in a Thunder Run race 20 times.
Get First Place in a Thunder Run race 30 times.
Buy 5 decorations for your farm.
Buy 15 decorations for your farm.
Buy 30 decorations for your farm.
Buy 50 decorations for your farm.
Win your first challenge.
Shear black sheep 50 times.
Shear black sheep 100 times.
Collect 75 chicken eggs.
Collect 150 chicken eggs.
Collect 300 chicken eggs.
Shear sheep 100 times.
Catch 150 fish.
Catch 250 fish.
Catch 25 salmon.
Catch 50 salmon.
Catch 100 salmon.
Catch 50 eel.
Catch 100 eel.
Play with your dragon 25 times.
Play with your dragon 50 times.
Play with your dragon 75 times.
Visit 10 different Vikings' About Me pages.
Visit 20 different Vikings' About Me pages.
Visit 30 different Vikings' About Me pages.
Visit 50 different Vikings' About Me pages.
Win 5 challenges.
Win 10 challenges.
Win 25 challenges.
Win 50 challenges.
Collect 60 sheep.
Make 20 friends.
Make 50 friends.
Visit 50 different friends.
Visit 75 different friends.
Visit 100 different friends.
Visit 150 different friends.