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