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