Here is the full list of all 41 The Darkest Tales achievements.
Defeat an enemy while hanging from a wall.
Defeat all the phantoms in the castle.
Unlock the shotgun.
End your love story.
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.
Use the bats as a flying bridge.
Defeat a porcupine tank while it has its shield up.
Fulfill all the Jinn's wishes.
Defeat the kid who wouldn't grow up.
Press
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.
Use your bow to defeat a zombie egg.
Unlock the bow.
Defeat 9 zombies by offering them some coffee.
Use a teleport mirror to go back.
Complete the first level without skipping any cutscenes.
Defeat the bloodthirsty girl.
Equip your first skill!
Explore the cave under the bed.
Unlock the swords.
Unlock the hunter armor.
Lose during the tutorial.
Hit a wolf key six times without touching the ground.
Dodge 9 lightnings at the last possible moment.
Cut 33 poisonous apples on the fly!
Defeat all the rubber duck mini-bosses.
Defeat Merlin the dragon.
Unlock the berserk form.