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