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