Full list of all 12 Life of Fly achievements worth 1,000 gamerscore. It takes around 1-2 hours to unlock all of the achievements on Xbox One.
Finish the story of the 12th fly
Finish the story of the 11th fly
Finish the story of the 10th fly
Finish the story of the 9th fly
Finish the story of the 8th fly
Finish the story of the 7th fly
Finish the story of the 6th fly
Finish the story of the 5th fly
Finish the story of the forth fly
Finish the story of the third fly
Finish the story of the second fly
Finish the story of the first Fly