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