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