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