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