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