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