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