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