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