Here is the full list of all 57 Hero of the Kingdom III achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Get the smithing skill to 100.
Make 80 weapons or shields.
Have 5,000 gold coins.
Mine 50 pieces of silver ore.
Get the mining skill to 100.
Make 600 various potions.
Cook 8,000 food.
Get the lockpicking skill to 100.
Hunt down 150 wild animals.
Kill 300 monsters.
Find 24 pearls.
Achieve 140 fame.
Defeat Earthquaker.
Get the combat skill to 100.
Find 400 eggs.
Mine 50 pieces of iron ore.
Pick 300 flowers.
Destroy all of the orc camps.
Pick 60 locks.
Find 120 lost crates and barrels.
Get the fishing skill to 100.
Get the archery skill to 100.
Get the cooking skill to 100.
Find 800 mushrooms.
Visit the Azure Valley.
Get the herbalism skill to 100.
Get the alchemy skill to 100.
Catch a golden fish.
Make 100 healing potions.
Make 10 swords.
Pick 15 locks.
Catch 100 fish.
Achieve 70 fame.
Cook 2,000 food.
Learn the mining skill.
Learn the smithing skill.
Visit the Gray Valley.
Hunt down 20 foxes.
Learn the lockpicking skill.
Kill 150 monsters.
Gather 100 berries.
Learn the alchemy skill.
Have 1,000 gold coins.
Have at least 1,000 strength.
Learn the herbalism skill.
Have at least 100 strength.
Find 30 lost crates and barrels.
Hunt down 20 rabbits.
Save the mayor of the Yellow Valley.
Find 100 eggs.
Find 200 mushrooms.
Find 6 pearls.
Visit the Yellow Valley.
Kill 50 monsters.
Learn the fishing skill.
Find some treasure.
Learn the cooking skill.