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