It’s no real surprise that Halo 3 remains at the top of the Xbox LIVE Activity chart for the past week, after the extremely strong release of Halo 3: ODST which contained additional content for Halo 3 multiplayer, but it is at least a little interesting that Call of Duty 4: Modern Warfare has managed to keep in the top three most played games on the service for the last few weeks, as players prepare for the next iteration of the series, Call of Duty: Modern Warfare 2.

Halo 3: ODST, Call of Duty: World at War and Gears of War 2 follow behind the top two in terms of Xbox LIVE activity.

On the Xbox LIVE Arcade sales front, there’s a great battle going on as Trials HD moves back up to the No. 1 as the most bought XBLA title, shoving last week’s No. 1, Zombie Apocalypse, to No. 2, as newly released title Bust-A-Move Live! sits at No. 3.

I MAED A GAM3 W1TH Z0MB1ES!!!1 is still the best selling Xbox LIVE Indie Game, and is still ahead of what seems like perennial best-sellers Avatar Drop and Avatar Golf.

The full global list of top played Xbox Live games, original Xbox games and top selling XBLA and Xbox LIVE Indie Games follows below, all based on unique users and full versions purchased.

Xbox 360 Top LIVE Titles

• Halo 3
• Call of Duty 4
• Halo 3: ODST
• Call of Duty: WaW
• Gears of War 2
• Madden NFL 10
• Forza 3 Demo
• GTA IV
• Left 4 Dead
• FIFA 10

Top Arcade Titles

• Trials HD
  
• Zombie Apocalypse
• BUST-A-MOVE Live!
• Battlefield 1943
• Shadow Complex
• Castle Crashers
• Marvel vs. Capcom 2
• Magic: The Gathering
• NBA 2K10 Draft Combine
• Defense Grid: The Awakening

Original Xbox

• Halo 2
• Star Wars: Battlfrnt 2
• Counter-Strike
• Fable
• Splinter Cell Chaos
• Conker: Live Reloaded
• Star Wars: Battlefront
• Doom 3
• SW: Republic Commando
• Call of Duty 3

Top Indie Games

• I MAED A GAM3 W1TH Z0MB1ES!!!1
• Avatar Drop
• Avatar Golf
• Headshot
• The Fart Machine II
• The Drinking Game
• Cassie’s Corner
• Junkyard Battle
• Miner Dig Deep
• Fishing Girl