Here is the full list of all 48 Hero of the Kingdom II achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Find the ancient gold armor.
Have 300 fame.
Own 3,000 gold coins.
Gather 40 baskets of berries.
Find 40 crabs.
Catch 160 fish.
Find 60 lost crates and barrels.
Save your sister.
Gather 25 sacks of herbs.
Find 180 eggs.
Hunt down 25 wild animals.
Find 12 treasures.
Pick 25 locks.
Find 25 pearls.
Acquire Percy’s compass.
Get the Crown of Power.
Destroy the Demon.
Kill 15 snakes.
Acquire five areas of knowledge.
Find 30 rainbow-tinted shells.
Heal seven people.
Clear the city of zombies.
Help three ghosts.
Find 10 pearls.
Meet your true love.
Catch 60 fish.
Find 200 mushrooms.
Give 12 charitable gifts.
Kill 15 spiders.
Build your own ship.
Pick 10 locks.
Learn five skills.
Hunt down 10 wild animals.
Find 15 crabs.
Have 100 fame.
Find 70 eggs.
Own 1,000 gold coins.
Gather 10 sacks of herbs.
Gather 15 baskets of berries.
Have 100 strength.
Learn two skills.
Acquire two areas of knowledge.
Help your sister make a necklace.
Help the miller get back his lost grain.
Find 25 lost crates and barrels.
Find 80 mushrooms.
Enter the city.
Help any fisherman in the village.