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