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