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.
Rest 50 times in a camp.
Find 60 lost crates and barrels.
Find 140 eggs.
Find 300 mushrooms.
Own 5,000 gold coins.
Hunt down 65 wild animals.
Find 12 treasures.
Make 25 sun solutions.
Catch 160 fish.
Gather 15 barrels of algae.
Pick 45 herbs.
Catch 80 fish.
Destroy the Dark Lord.
Have 100 fame.
Have 350 fame.
Own 500 gold coins.
Learn an expert skill.
Build or repair 10 structures.
Find father.
Become a soldier.
Fight 12 battles.
Heal five people.
Gather 40 sacks of night flowers.
Find 150 mushrooms.
Hunt down 25 wild animals.
Find 30 lost crates and barrels.
Find 25 crayfish.
Find 12 pearls.
Help two ghosts.
Get a boat.
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.