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