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