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.
Find 12 treasures.
Hunt down 65 wild animals.
Make 25 sun solutions.
Find father.
Find 30 lost crates and barrels.
Learn an expert skill.
Build or repair 10 structures.
Pick 45 herbs.
Find 25 crayfish.
Gather 40 sacks of night flowers.
Become a soldier.
Own 500 gold coins.
Hunt down 25 wild animals.
Find 150 mushrooms.
Have 100 fame.
Gather 15 barrels of algae.
Catch 80 fish.
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.
Have 350 fame.
Own 5,000 gold coins.
Rest 50 times in a camp.
Fight 12 battles.
Heal five people.
Find 300 mushrooms.
Find 140 eggs.
Find 60 lost crates and barrels.
Catch 160 fish.
Find 12 pearls.
Help two ghosts.
Destroy the Dark Lord.