Here is the full list of all 12 Brukel achievements.
Reveal an old portrait on your phone.
Finish chapter 1 without ever stopping Bie's audio
Take a Picture of the holy Saint Dymphna.
Stare at a particulary eerie and foreboding shadow somewhere in the house.
Take a picture of an object long after Bob wanted to go home.
Quite literally, find the needle. It's a Belgian thing.
Try to eat some rather dubious chocolate.
Get face-to-face with what only can be explained as a ghost and take a close-up picture.
Finish the game and survive the Brukel nightmare.
Summon the spirit of Slow Bear to play a song in the house.
Take a picture of every object in the phone's list during chapter 1.
Finish the game with 100% completion by taking a picture of every story object (including hidden ones).