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