Here is the full list of all 15 The Hunter's Journals - there are Blissful Ignorance achievements.
Begin a game at any difficulty level.
Reach a dead end.
Fail to complete your hunt.
Beat the game on Easy difficulty.
Beat the game on Intermediate difficulty.
Beat the game on Hard difficulty.
Beat the game with a Maximum Skill of 7 or less.
Beat the game without using any Medical Supplies.
Beat the game without saving.
Unlock all artwork in the gallery.
Reach the Grand Library.
Take a bribe.
Free an Infernal.
Take a random ink and hope for the best.
Encounter the Parade of the Damned.