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