According to 1337pwn.com data, Grand Theft Auto IV is now in 2nd place in overall game popularity by unique players on XBOX Live.
Top 10 XBOX Live Games as of May 5th. 2008
Rank (Popularity Index)
1. Call of Duty 4 (1000)
2. GTA IV (818.13373630525)
3. Halo 3 (816.01813373631)
4. Rainbow Six® Vegas 2 (272.00604457877)
5. Guitar Hero III (242.23649414431)
6. Rock Band (241.93426520589)
7. Gears of War (189.04420098224)
8. Forza Motorsport 2 (78.352852285606)
9. Guitar Hero II (64.148092179826)
10. Madden NFL 08 (59.916887041934)
1337pwn.com calculates a popularity index based upon a scale from 0 to 1000. This scale gives you a games relative popularity to the top game on XBOX Live. It's a little more meaningful a simple top 10 list.
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