Here is the full list of all 12 Norman's Great Illusion achievements worth 1,000 gamerscore.
You attended a Christmas party
You have earned a promotion
You have reached the ending three times
You were fired
You became a member of an underground organization
You have completed the game
You burned factory's owner house
You got a bonus
You have made your first choice
You got a penalty
You broke your car
You failed work minigame