Black Mirror has 21 achievements worth 1,000 gamerscore.
All achievements
Achievements they've won
Achievements they've not won
Finish Chapter V
Cross the invisible cave chasm
Enter the Caves
Experience the Master Study Vision
Unite Margaret and Rosemary
Finish Chapter IV
Trigger the Village Vision
Finish Chapter III
Observe how much Eddie loves his toys
Live through the Cellar Vision
Take a ride in the dumbwaiter
Calm yourself down in three situations
Trigger the Glasshouse Vision
Finish Chapter II
Trigger the Chapel Vision
Enjoy your Scottish breakfast
Calm down after your first night
Finish Chapter I
Meet a mysterious kid
Lock-picked the library cabinet instead of breaking it open
Settle in your room