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