Here is the full list of all 31 Hokko Life achievements.
Build a bridge to cross the river
Renovate a home for yourself
Complete Meeting Villagers
Get all other achievements
Move in your first villager
Build your first house
Explore all floors of the mine
Unlocked all design tool features
Travel to the city center
Download an item from another players online store
Visited all mainland locations
Make a stone bed
Meet the Bug Catcher
Meet the Fisher
Catch 20 unique types of bugs
Catch 20 unique types of fish
Complete 10 fishing challenges
Compete in 4 fishing tournaments
Catch a Boot
Sleep in someone elses bed
Redecorate the interior and exterior of a house
Have 10 user-designed objects in your home
Create 20 designs
Create a design that uses at least 1 piece from 10 different piece packs
Design an original item and place it in your own house
Complete your first multi ingredient recipe request
Unlock the expansion to the farm
Grow 16 unique Vegetables
Grow 6 unique Fruits
Plant 50 trees
Decorate your own Christmas Tree