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