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