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