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