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