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