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