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