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