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