Here is the full list of all 41 The Darkest Tales achievements.
Unlock the berserk form.
Defeat Merlin the dragon.
Defeat all the phantoms in the castle.
Unlock the shotgun.
Use your bow to defeat a zombie egg.
Dodge 9 lightnings at the last possible moment.
End your love story.
Defeat all the rubber duck mini-bosses.
Press
Unlock the greatsword.
Unlock the knight armor.
Leave the fish woman speechless.
Listen to the fish woman's entire song.
Unlock the harpoon.
Defeat SCIENCE!
Stop and fight during the speed test.
Unlock the spear.
Hit a wolf key six times without touching the ground.
Defeat a porcupine tank while it has its shield up.
Fulfill all the Jinn's wishes.
Defeat the kid who wouldn't grow up.
Unlock the boomerang.
Defeat the pirate captain and her crew.
Defeat the fairy queen.
Unlock the axe.
Unlock the pirate suit.
Run away from the king and his giant wife.
Stitch up your wounds 42 times.
Defeat 9 zombies by offering them some coffee.
Unlock the bow.
Use a teleport mirror to go back.
Defeat the bloodthirsty girl.
Equip your first skill!
Explore the cave under the bed.
Use the bats as a flying bridge.
Unlock the swords.
Unlock the hunter armor.
Lose during the tutorial.
Complete the first level without skipping any cutscenes.
Defeat an enemy while hanging from a wall.
Cut 33 poisonous apples on the fly!