Here is the full list of all 16 A City Sleeps achievements.
Defeat the boss in stage one at any difficulty.
Listen to an unlocked track in the Jukebox.
Die 50 times while fighting the Kami.
Defeat the boss in stage three at any difficulty.
Defeat the boss in stage two at any difficulty.
Defeat the boss in stage three at the Lucid Difficulty.
Defeat the boss in stage two at the Nightmare Difficulty.
Complete a stage with three ghosts in your load out.
Defeat the boss in a cursed version of stage one.
Defeat the boss in a cursed version of stage two.
Defeat the boss in a cursed version of stage three.
Defeat the boss in the cursed nightmare version of stage three.
Complete a stage with three relics equipped.
Complete a stage without the Mercy Ghost in your ghost load out.
Complete a stage without being hit.
Dispatch more than ten spirits at once with the ghost hand.