Here is the full list of all 16 Fragile achievements.
Take the key on your first try
Read all lores of the chapter 1
Seen all the deaths
Fell to your death 10 times
Climbed to the top in less than 3 tries
Read all lores of the creature
Finish the game without dying
Finish all endings
Get the good ending
Get the bad ending
Read all lores
Outrun the surgeons on your first try
Died 10 times by the needle of meat monster
Finish all traditional games
Finish the all puzzles
Find all children's items