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