Here is the full list of all 38 Hero of the Kingdom achievements. It takes around 4-5 hours to unlock all of the achievements on Windows.
Catch 160 fish.
Pick 45 herbs.
Gather 40 sacks of night flowers.
Gather 15 barrels of algae.
Hunt down 65 wild animals.
Make 25 sun solutions.
Find 60 lost crates and barrels.
Catch 80 fish.
Destroy the Dark Lord.
Fight 12 battles.
Find 300 mushrooms.
Find 140 eggs.
Find 12 pearls.
Find 12 treasures.
Rest 50 times in a camp.
Heal five people.
Find 30 lost crates and barrels.
Find 25 crayfish.
Have 350 fame.
Hunt down 25 wild animals.
Help two ghosts.
Find father.
Learn an expert skill.
Build or repair 10 structures.
Get a boat.
Find 150 mushrooms.
Become a soldier.
Own 5,000 gold coins.
Own 500 gold coins.
Have 100 fame.
Learn an advanced skill.
Finish the water mill.
Learn three skills.
Get a weapon.
Make a barter.
Leave the home farm.
Saw 10 pieces of wood.
Get working tools.