My goal here is to collect a list of every game to have sold 10M copies across all platforms.

Here’s the rules:

~*~The Anything Goes List~*~

Counted towards same game sales:

-Games with same name and core content on different systems of the same generation.
(Example: Guitar Hero III for XBox 360, PS3, PS2 and Wii..)

-Remakes or re-releases of a game with the same core content.
(Example: Super Mario Bros. remade as Super Mario Bros. DX for GBC, or re-released as a “Famicom Mini” for GBA.)

-Games released as part of compilations on a system of the same generation.
(Example: Grand Theft Auto Double Pack for XBox counts toward both GTAIII and Vice City.)

-Multiple SKUs of games with the same core content released simultaneously for the same system.
(Example: Pokemon Red, Blue and Green.)

-Special editions, released to capitalize on a hit game, which modify the core content of the game to a small degree compared to the total amount of content in the game.
(Example: Pokemon Yellow: Special Pikachu Edition)

Counted as an entirely new game:

-Remakes of an older game on a newer system which significantly alter or add to the core content.
(Example: Pokemon FireRed/LeafGreen.)

-Compilations of games on a system of a later generation.
(Example: Super Mario All-Stars)

Note: the distinction is made in compilations because of the difference in paying for individual games at a lower price and "paying for the compilation." When current systems allow the option to buy games individually, a compilation is simply a good deal. When games are only available as part of a compilation, every sale of the compilation cannot be counted towards the total of every game in it; the compilation *is* the game, and is counted separately as such.  

1. Super Mario Bros.  47.57M
40.24M for NES
5.07M for GBC
2.26M for GBA

2. Pokemon Red/Green/Blue/Yellow  46.02M
For GB
31.38M for Red/Green/Blue versions
14.64M for Yellow version (special edition)

3. Tetris  37.77M
30.26M for GB
5.58M for NES
1.93M for GBC

4. Wii Sports  30.87M
For Wii
*Shipped number from Nintendo http://gonintendo.com/?p=61322#more-61322

5. Pokemon Gold/Silver/Crystal  29.50M
For GBC
23.11M for Gold/Silver versions
6.39M for Crystal version (special edition)

6. Duck Hunt  28.31M
For NES

7. Super Mario World  26.07M
20.61M for SNES
5.46M for GBA

8. Super Mario Bros. 3  22.48M
17.28M for NES
5.20M for GBA

9. Pokemon Ruby/Sapphire/Emerald  21.74M
For GBA
15.40M for Ruby/Sapphire
6.34M for Emerald (special edition)

10. Grand Theft Auto: San Andreas  21.5M
17.40M for PS2
1.93M for XBox
Remainder for PC
*Shipped number from Take-2 http://taketwovalue.com/documents/TTWO_Value.pdf#page=12

11. Nintendogs  20.03M
For DS
*Shipped number from Nintendo http://gonintendo.com/?p=61322#more-61322

12. The Sims  19.68M
16.08M for PC
2.68M for PS2
.49M for GC
.43M for XBox
(Also on Mac)

13. Super Mario Land  18.14M
For GB

14. Super Mario 64  18.11M
11.89M for N64
6.22M for DS

15. Pokemon Diamond/Pearl/Platinum  17.92M
For DS
16.08M for D/P
1.84M for Platinum (special edition)

16. Grand Theft Auto: Vice City  17.5M
14.20M for PS2
2.22M for XBox
Remainder for PC
*Shipped number from Take-2 http://taketwovalue.com/documents/TTWO_Value.pdf#page=12

17. Wii Play  16.15M
For Wii
*Shipped number from Nintendo http://gonintendo.com/?p=61322#more-61322

18. New Super Mario Bros.  15.89M
For DS
*Shipped number from Nintendo http://gonintendo.com/?p=61322#more-61322

19. Gran Turismo 3: A Spec  14.87M
For PS2

20. Grand Theft Auto III  14.5M
11.60M for PS2
2.22M for XBox
Remainder for PC
*Shipped number from Take-2 http://taketwovalue.com/documents/TTWO_Value.pdf#page=12

21. Brain Training  14.48M
For DS
*Shipped number from Nintendo http://gonintendo.com/?p=61322#more-61322

22. Donkey Kong Country  13.33M
9.30M for SNES
2.19 for GBC
1.84 for GBA

23. The Sims 2  >13M
At least 5.21M for PC (actual sales likely make up majority of 13M total)
1.37M for DS
.68M for PSP
.66M for PS2 (Americas numbers only)
(Also on XB, GC, GBA)
*Shipped number from EA http://planetthesims.gamespy.com/View.php?view=PressReleases.Detail&game=8&id=77

24. Guitar Hero III  12.77M
4.28M for PS2
3.51M for X360
3.37M for Wii
1.61M for PS3
(Also on PC)

25. More Brain Training  12.17M
For DS

26. Mario Kart DS  12.31M
For DS

27. Pokemon FireRed/LeafGreen  11.82M
For GBA
*Shipped number from Nintendo http://gonintendo.com/wp-content/uploads/nintendozahlen.jpg

28. Super Mario Land 2  11.18M
For GB

29. Gran Turismo  10.85M
For PS

30. Grand Theft Auto IV  10.69M
6.07M for X360
4.62M for PS3

31. Super Mario All-Stars  10.55M
For SNES

32. Dr. Mario  10.32M
5.34M for GB
4.85M for NES
.13M for GBA (Japan only)

33. Call of Duty 4: Modern Warfare  10.20M
6.53M for X360
3.67M for PS3
(Also on PC)

34. Gran Turismo 4  10.18M
For PS2
*Shipped number from Polyphony http://www.polyphony.co.jp/english/list.html

Mario Kart 64  9.87M
For N64

Animal Crossing: Wild World  9.83M
For DS

Final Fantasy VII  9.72M
For PS
(Also on PC)

Need for Speed: Underground 2  9.63M
6.38M for PS2
2.05M for XBox
1.09M for GC
.11M for DS (America numbers only)
(Also on PC, GBA)

Mario Kart Wii  9.53M
For Wii
*Shipped number from Nintendo http://gonintendo.com/?p=61322#more-61322

Need for Speed: Underground  9.31M
6.49M for PS2
1.64M for XBox
1.18M for GC
(Also on PC, GBA)

Gran Turismo 2  9.37M
For PS2

Wii Fit  9.32M
For Wii

World of Warcraft  9.19M
For PC

Need for Speed: Most Wanted  9.12M
4.15M for PS2
1.90M for PSP
1.39M for X360
1.06M for XBox
.38M for GC (America numbers only)
.24M for DS (America numbers only)
(Also on PC)

Mario & Sonic at the Olympic Games  8.93M
5.71M for Wii
3.22M for DS

Super Mario Kart  8.76M
For SNES

Madden NFL 2007  8.75M
3.65M for PS2
1.82M for X360
.99M for XBox
.81M for PSP
.47M for PS3
.44M for Wii
.40M for GC
.17M for DS

Halo 2  8.46M
For XBox
(Also on PC)

Halo 3  8.36M
For X360

GoldenEye 007  8.09M
For N64

And, for arguments sake:

~*~The Stingy List~*~

Counted towards same game sales:

-Games with same name and core content on different systems of the same generation.
(Example: Guitar Hero III for XBox 360, PS3, PS2 and Wii..)

-Remakes or re-releases of a game with the same core content.
(Example: Super Mario Bros. remade as Super Mario Bros. DX for GBC, or re-released as a “Famicom Mini” for GBA.)

-Games released as part of compilations on a system of the same generation.
(Example: Grand Theft Auto Double Pack for XBox counts toward both GTAIII and Vice City.)

Counted as an entirely new game:

-Each differently named SKU of games with the same core content released simultaneously for the same system.
(Example: Pokemon Red, Blue and Green.)

-Special editions.
(Example: Pokemon Yellow: Special Pikachu Edition)  

-Remakes of an older game on a newer system which significantly alter or add to the core content.
(Example: Pokemon FireRed/LeafGreen.)

-Compilations of games on a system of a later generation.
(Example: Super Mario All-Stars)

Discounted entirely:

-Games that are part of "forced" pack-ins; that is, included with every system available for sale.
(Example: Super Mario Bros. for NES; Wii Sports for Wii)

Note: The distinction is made in compilations because of the difference in paying for individual games at a lower price and "paying for the compilation." When current systems allow the option to buy games individually, a compilation is simply a good deal. When games are only available as part of a compilation, every sale of the compilation cannot be counted towards the total of every game in it; the compilation *is* the game, and is counted separately as such.  

Note 2: Likely every game on this list benefitted from prominent publisher and/or retailler bundles. Discounting based on that would be counter-productive.

1. Super Mario Bros. 3  22.48M
17.28M for NES
5.20M for GBA

2. Grand Theft Auto: San Andreas  21.5M
17.02M for PS2
1.93M for XBox
Remainder for PC
*Shipped number from Take-2 http://taketwovalue.com/documents/TTWO_Value.pdf#page=12

3. The Sims  19.68M
16.08M for PC
2.68M for PS2
.49M for GC
.43M for XBox
(Also on Mac)

4. Super Mario 64  18.11M
11.89M for N64
6.22M for DS

5. Grand Theft Auto: Vice City  17.5M
14.20M for PS2
2.22M for XBox
Remainder for PC
*Shipped number from Take-2 http://taketwovalue.com/documents/TTWO_Value.pdf#page=12

6. Wii Play  16.15M
For Wii
*Shipped number from Nintendo http://gonintendo.com/?p=61322#more-61322

7. New Super Mario Bros.  15.89M
For DS
*Shipped number from Nintendo http://gonintendo.com/?p=61322#more-61322

8. Gran Turismo 3: A Spec  14.87M
For PS2

9. Pokemon Yellow  14.64M
For GB

10. Grand Theft Auto III  14.5M
11.60M for PS2
2.22M for XBox
Remainder for PC
*Shipped number from Take-2 http://taketwovalue.com/documents/TTWO_Value.pdf#page=12

11. Brain Training  14.48M
For DS
*Shipped number from Nintendo http://gonintendo.com/?p=61322#more-61322

12. Pokemon Red  ~14M
For GB

12. Pokemon Blue  ~14M
For GB

*Note for Pokemon Red/Blue: (Approx. Red/Blue/Green sold 31+M; 14 + 14 = 28M; remaining 3+ M for Japan-only Green version.)

14. Donkey Kong Country  13.33M
9.30M for SNES
2.19 for GBC
1.84 for GBA

15. The Sims 2  >13M
At least 5.21M for PC (actual sales likely make up majority of 13M total)
1.37M for DS
.68M for PSP
.66M for PS2 (Americas numbers only)
(Also on XB, GC, GBA)
*Shipped number from EA http://planetthesims.gamespy.com/View.php?view=PressReleases.Detail&game=8&id=77

16. Guitar Hero III  12.77M
4.28M for PS2
3.51M for X360
3.37M for Wii
1.61M for PS3
(Also on PC)

17. More Brain Training  12.17M
For DS

18. Mario Kart DS  12.31M
For DS

19. Pokemon Gold  11.56M
For GBC

20. Pokemon Silver  11.55M
For GBC

*Note for Pokemon Gold/Silver: (23.11M/2; actual sales were probably far more weighted towards "Gold" version.)

21. Super Mario Land 2  11.18M
For GB

22. Gran Turismo  10.85M
For PS

23. Grand Theft Auto IV  10.69M
6.07M for X360
4.62M for PS3

24. Super Mario All-Stars  10.55M
For SNES

25. Dr. Mario  10.32M
5.34M for GB
4.85M for NES
.13M for GBA (Japan only)

26. Call of Duty 4: Modern Warfare  10.20M
6.53M for X360
3.67M for PS3
(Also on PC)

27. Gran Turismo 4  10.18M
For PS2
*Shipped number from Polyphony http://www.polyphony.co.jp/english/list.html

Well done! Care to increase the list? Top 50 would be neat. If you don't simply say, and I will do a bit of it.

My over/under on eventual sales for Nintendogs is 25 million

I'd like to get everything over 10M.

bump

Bundled games like Wii Sports should not count.

If you take away rereleases and bundling, theres probably a pretty good chance that Pokemon Red/Blue/Green is the best selling game ever., right?

Possibly. But wasn't pokemon bundled for a spell as well? Or were those just retailer bundles?

I don't recall it being bundled.  Retailer bundles are more likely.  Super Mario Bros was bundled how much?  And Tetris only sold more with rereleases.  I'm just curious because it's quite possible my favorite game of all time.  :)

@ Rock_On,  if you don't put Wii Sports, you can't put Super Mario Bros. either, for same reason.  Just in case you didn't know.  Pokemon doesn't need bundle/rerelease help!  :D