Despite a sales drop of 22% this week, Grand Theft Auto IV has held onto its top spot in the Chart-Track All-Formats Top 40.

Race Driver: GRID sped up the charts on its release week, but fell short of pole position, coming in second overall. It also managed to grab second place on the Xbox chart, but only made it to number three on the PS3 chart, with Haze for the Sony console standing strong at number two.

Elsewhere in the chart, Rock Band in 12th place was beaten by Guitar Hero III: Legends of Rock at 11, and Age of Conan: Hyborian Adventures after a promising start fell from two to 16.

The illusive Wii-Fit that remains in short supply around the world does not make an appearance in the Top 40, with Chart-Track also noting its absence from the Wii Top 40 as well.

This Friday sees the release of LEGO Indiana Jones, Ninja Gaiden 2 and the PC version of Mass Effect. Will any of these steal the crown from Niko Bellic and co? It only remains to be seen.

Here's the rundown of the 40 best-selling games this week.

1. Grand Theft Auto IV (PS3, Xbox 360)
2. Race Driver: GRID (PS3, Xbox 360, PC)
3. Mario & Sonic at the Olympic Games (Wii, DS)
4. Wii Play (Wii)
5. Pro Evolution Soccer 2008 (Xbox 360, PS3, PS2, PC, DS, PSP)
6. Haze (PS3)
7. SEGA Superstars Tennis (Xbox 360, PS3, Wii, PS2, DS)
8. FIFA 08 (Xbox 360, PS3, PC, Wii, PS2, DS, PSP)
9. Call of Duty 4: Modern Warfare (Xbox 360, PS3, PC, DS)
10. Mario Kart Wii (Wii)
11. Guitar Hero III: Legends of Rock (Xbox 360, PS3, Wii, PS2, PC, DS)
12. Rock Band (Xbox 360)
13. Iron Man: The Official Videogame (PC, Xbox 360, PS3, PS2, PSP, Wii, DS)
14. Dr Kawashima's Brain Training (DS)
15. Enemy Territory: Quake Wars (Xbox 360, PS3)
16. Age of Conan: Hyborian Adventures (PC)
17. UEFA Euro 2008 (Xbox 360, PC, PS3, PS2, PSP)
18. Big Brain Academy: Wii Degree Wii)
19. Sonic and the Secret Rings (Wii)
20. Carnival: Funfair Games (Wii)
21. Gran Turismo 5 Prologue (PS3)
22. Tom Clancy's Rainbow Six Vegas 2 (Xbox 360, PS3)
23. Cooking Mama 2 (Wii, DS)
24. Ben 10: Protector of Earth (Wii, PS2, PSP, DS)
25. Cooking Mama (Wii, DS)
26. Boom Blox (Wii)
27. High School Musical: Work This out (DS)
28. Game Party (Wii)
29. Football Manager 2008 (PC, Xbox 360)
30. Mario Kart DS (DS)
31. LEGO Star Wars: The Complete Saga (Xbox 360, PS3, Wii, DS)
32. The Simpsons Game (Xbox 360, PS3, Wii, PS2, DS, PSP)
33. New Super Mario Bros. (DS)
34. WWE SmackDown vs. Raw 2008 (Xbox 360, PS3, PS2, PSP, Wii, DS)
35. Tiger Woods PGA Tour 08 (Xbox 360, PS3, Wii, PC, PS2, DS, PSP)
36. The Legend of Zelda: Phantom Hourglass (DS)
37. Imagine: Babies (DS)
38. More Brain Training From Dr Kawashima (DS)
39. Ratatouille (PC, DS, GBA, Wii, Xbox 360, PSP, PS2, PS3)
40. The Golden Compass (PC, Xbox 360, PS3, PS2, PSP, Wii, DS)