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.
Destroy the Dark Lord.
Fight 12 battles.
Find 300 mushrooms.
Own 5,000 gold coins.
Find 60 lost crates and barrels.
Find 140 eggs.
Have 350 fame.
Catch 160 fish.
Find 12 treasures.
Help two ghosts.
Hunt down 65 wild animals.
Heal five people.
Find 12 pearls.
Find father.
Make 25 sun solutions.
Pick 45 herbs.
Learn an expert skill.
Build or repair 10 structures.
Gather 40 sacks of night flowers.
Find 25 crayfish.
Gather 15 barrels of algae.
Rest 50 times in a camp.
Become a soldier.
Own 500 gold coins.
Find 30 lost crates and barrels.
Hunt down 25 wild animals.
Find 150 mushrooms.
Catch 80 fish.
Have 100 fame.
Get a boat.
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.