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