Here is the full list of all 35 STORY OF SEASONS: Friends of Mineral Town achievements.
Reach Spring of Year 5.
Own 5 pets.
Catch every type of fish.
Cook every kind of dish.
Eat at least one of every type of dish you can make.
Catch 50 different types of fish.
Cook 50 different kinds of dishes.
Reach Spring of Year 3.
Cook 10 different kinds of dishes.
Make 300 offerings to the Harvest Goddess. (1x per day)
Ship every type of crop with ★5 quality.
Win the Fluffy Festival.
Ship every type of crop.
Own at least 8 alpacas.
Own at least 8 sheep.
Get married.
Successfully confess to every romance option before marriage.
Win the Moo-Moo Festival.
Breed at least one of every livestock type.
Own at least one of every livestock type.
Win the Cluck-Cluck Clash.
Own at least 4 Angora rabbits.
Have a total of 5,000,000G at once.
Catch 10 different types of fish.
Own at least 8 cows.
Reach Spring of Year 2.
Renovate every building on your farm.
Reach BF255 in a mine.
Reach BF100 in a mine.
Reach BF30 in a mine.
Renovate your house twice.
Have a total of 100,000G at once.
Own at least 4 chickens.
Have a total of 50,000G at once.
Stay in the Hot Spring for 10 hours straight.