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