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