Here is the full list of all 30 Endless Fables 4: Shadow Within achievements. It takes around 2-3 hours to unlock all of the achievements on Windows.
You've virtuously defeated the Queen of Wasps.
Collect all puzzle pieces.
Collect all figurines.
You dexterously got inside the hive.
You flew high up in the sky.
You patiently listened to the Fluff's story.
Play through all story-telling Minigames without skipping.
You uniquely defeated the Sandman.
Complete all Minigames without skipping.
Finish all Hidden Object Puzzles without any Hints.
You saved a nearly lost soul.
You skillfully avoided the shadogs.
You defended your friend's soul.
You repaired a flying boat.
You became a friend of the Fluffs.
You acquired the knowledge about the Sandman.
You boldly visited through the dreams.
You smoothly prepared a remedy.
You entered another world.
Open the Map at least once.
You snuck into the castle.
Complete four Minigames, each in less than 60 seconds.
You retraced Agatha's clues.
Complete four Minigames without skipping.
Complete a Minigame in 60 seconds.
You read a fable to a young girl.
You creatively fixed the train door.
Finish a Hidden Object Puzzle in 90 seconds.
Finish a Hidden Object Puzzle without any mistakes.
Finish a Hidden Object Puzzle without using Hint.