http://multiplayerblog.mtv.com/2009/01/05/top-20-xbl-games/
Xbox 360 Top Live Titles (based on unique users)
1. Halo 3
2. Call of Duty 4
3. GTA IV
4. Gears of War 2
5. Gears of War
6. CoD: World at War
7. Guitar Hero III
8. Battlefield: Bad Company Demo
9. Star Wars: The Force Unleashed Demo
10. Rock Band
11. Fable II
12. Mirror’s Edge Demo
13. Madden NFL 09
14. BF: Bad Company
15. Rainbow Six Vegas 2
16. UNO
17. Castle Crashers
18. COD: World at War Multiplayer Beta
19. Forza Motorsport 2
20. Too Human - Demo
Top Arcade Titles (full versions purchased)
1. Castle Crashers
2. Geometry Wars: Retro Evolved 2
3. Braid
4. A Kingdom for Keflings
5. UNO
6. Super Street Fighter II Turbo HD Remix
7. Fable II Pub Games
8. Duke Nukem 3D
9. Bionic Commando: Rearmed
10. Worms
11. SOULCALIBUR
12. Portal: Still Alive
13. DOOM
14. 1942: Joint Strike
15. Bomberman Live
16. MEGA MAN 9
17. N+
18. Wolf of the Battlefield: Commando 3
19. Marble Blast Ultra
20. Ultimate Mortal Kombat 3
