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