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