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