Here is the full list of all 41 The Darkest Tales achievements.
Use your bow to defeat a zombie egg.
Unlock the berserk form.
Defeat all the phantoms in the castle.
Defeat Merlin the dragon.
End your love story.
Unlock the greatsword.
Unlock the knight armor.
Leave the fish woman speechless.
Press
Unlock the harpoon.
Defeat SCIENCE!
Stitch up your wounds 42 times.
Unlock the spear.
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.
Defeat 9 zombies by offering them some coffee.
Defeat an enemy while hanging from a wall.
Unlock the bow.
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.
Use a teleport mirror to go back.
Use the bats as a flying bridge.
Defeat a porcupine tank while it has its shield up.
Dodge 9 lightnings at the last possible moment.
Cut 33 poisonous apples on the fly!
Stop and fight during the speed test.
Listen to the fish woman's entire song.
Defeat all the rubber duck mini-bosses.
Unlock the shotgun.