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.
Gather 40 sacks of night flowers.
Pick 45 herbs.
Make 25 sun solutions.
Find 300 mushrooms.
Hunt down 65 wild animals.
Gather 15 barrels of algae.
Own 5,000 gold coins.
Destroy the Dark Lord.
Fight 12 battles.
Have 350 fame.
Rest 50 times in a camp.
Find 12 treasures.
Find 12 pearls.
Find 60 lost crates and barrels.
Find 140 eggs.
Help two ghosts.
Heal five people.
Find father.
Build or repair 10 structures.
Hunt down 25 wild animals.
Own 500 gold coins.
Learn an expert skill.
Catch 80 fish.
Find 25 crayfish.
Find 30 lost crates and barrels.
Become a soldier.
Have 100 fame.
Find 150 mushrooms.
Get a boat.
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.