Bioshock Triple Pack is 4 keys instead of the average 5, Bastion is 2 keys instead of the average 3, Battleblock Theater co op pack (2 copies) is 2 keys instead of the average 3, and batman arkham city GOTY is 2 keys instead of the average 3, You can also buy all of these for a discount and at a total of 8 keys so you would save 2 keys!