If you are in the Preview Program of the upcoming update that is set to release on August 11, nine 360 games on demand had been added. The prices are set and here are the following prices for the available games in the marketplace.
From the looks of it, the 360 games on the marketplace is more expensive than the retail ones!
$29.99
Assassin’s Creed
Bioshock
Call of Duty 2
Lego: Star Wars The Complete Saga
Elder Scrolls: The Oblivion
$19.99
Mass Effect
Need for Speed Carbon
Sonic The Hedgehog
Viva Pinata
Stay tuned for the updated list before the update comes out to the public on the 11th.