Hello and welcome mate…
You do realise that you can’t add actual games that you can play, the game adder gives you the ability to unlock achievements for these games and not play them.
If you have any questions just ask, there is always someone here to offer you a hand.
Be active and enjoy the site!!
Well, you need an Xbox LIVE gold account for one. So, online accessibility. Then every month Microsoft gives you two free titles each month. The first one is released on the 1st of each month and the second on the 16th of each month. Usually the first title is an arcade game and the second is an actual title. This month on the 16th the free game is Halo: Reach. Do you have a gold account?
EDIT: Also, if you have a credit card hooked up to your Xbox, Borderlands 2 is $4.99 right now.