Console Monster writes: "The first Xbox Live Arcade Wednesday of the month brings two new Xbox Live Arcade titles in the form of Defense Grid: The Awakening and Yo-Ho-Kablammo, both of which are priced at 800 Microsoft Points. The only other content is the Grand Theft Auto IV: Ballad of Gay Tony trailer. More details on that can be found here. Here is the full Xbox Live Marketplace update for Wednesday 2nd September:
Defense Grid: The Awakening
Price: 800 Microsoft Points (Free trial available)
Size: 297 MB
Defense Grid: The Awakening is the definitive Tower Defense Strategy game that's easy to pick up, engrossing to play, and hard to set down. Strategically place your towers on the map to prevent alien enemies from stealing your power cores. Play just for fifteen minutes or several hours! This award winning game includes 10 hours of story play with 20 unique maps in the Awakening campaign, 4 bonus Borderlands maps, a wide variety of tower and enemy types, an interactive soundtrack, plus over 100 unlockable challenge modes adding dozens of hours of additional fun. Protect the Cores! This game requires the Xbox 360 hard drive for storage. There are no refunds for this item. For more information, see www.xbox.com/live/accounts..."