Xbox Live community manager Major Nelson revealed today that the blue hedgehog’s first-ever Dreamcast outing Sonic Adventure and PopCap’s addictive tower defense title Plants vs. Zombies will headline September’s lineup on Xbox Live Arcade.

Following the release of both titles, Microsoft is serving up a platter of four titles in a promotion it has dubbed “The Game Feast.” The initiative will run its course through September 29 to October 20, with a new title featured each week. Additionally, from September 17 to September 20, Microsoft is giving Xbox Live Silver members a free trial pass to several features reserved for the Gold membership tier, including online multiplayer, as well as Last.fm, Twitter, and Facebook integration.

For a full breakdown of what’s to come, hit the jump.

Xbox LIVE Arcade:
September 8: Plants vs. Zombies, 1200 Microsoft Points
September 8: Dance! It’s your Stage, 800 Microsoft Points
September 15: Sonic Adventure, 800 Microsoft Points
September 29: Hydrophobia, 1200 Microsoft Points
October 6: Comic Jumper, 1200 Microsoft Points
October 13: Pinball FX 2, Tables purchased individually, free import from original Pinball FX
October 20: Super Meat Boy, Pricing TBD

Xbox LIVE Deal of the Week** :
Week of September 5th: Select Resident Evil content
Week of September 13:
BUST-A-MOVE Live!, 400 Microsoft Points
Gyromancer, 800 Microsoft Points
Tower Bloxx Deluxe, 400 Microsoft Points
Puzzle Chronicles, 400 Microsoft Points

**Special pricing available for Xbox LIVE Gold Members

Xbox Game Add-Ons
September 2: Crackdown 2 Toy Box available at no cost to Crackdown 2 owners; 560 Microsoft Points for additional content and available worldwide
September 7: Mass Effect 2 Lair of the Shadow Broker , 800 Microsoft Points
September 7: Dragon Age: Origins Witch Hunt , 560 Microsoft Points
September 7: Rock Band Snoop Dog 8 Single Tracks, 160 Microsoft Points for each track and available worldwide

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