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