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