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