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