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