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