1. "Super Mario Bros." for NES: 40 Million Units
2. "Tetris" for Gameboy: 33 Million Units
3. "Super Mario Bros. 3" for NES: 18 Million Units
4. "Super Mario World" for SNES: 17 Million Units
5. "Super Mario Land" for Gameboy: 14 Million Units
6. "Super Mario 64" for N64: 11 Million Units
7. "The Sims" for PC: 10 Million Units
8. "Super Mario Bros. 2" for NES: 10 Million Units
9. "Grand Theft Auto: Vice City" for PS2: 8.5 Million Units
10. "Harry Potter and the Sorcerer's Stone" for PSX: 8 Million Units
11. "GoldenEye" for N64: 8 Million Units
12. "Donkey Kong Country" for SNES: 8 Million Units
13. "Super Mario Kart" for SNES: 8 Million Units
14. "Pokemon Red/Blue" for Gameboy: 8 Million Units
15. "Half-Life" for PC: 8 Million Units
16. "Tomb Raider II" for PSX: 8 Million Units
17. "Final Fantasy VII" for PSX: 7.8 Million Units
18. "Myst" for PC: 7 Million Units
19. "Gran Turismo 3" for PS2: 7 Million Units
20. "Dragon Warrior VII" for PS2: 6 Million Units
The best selling game of all time (in my opinion is Animal Crossing) would probably have to be Super Mario Bros. for the NES. I'm guessing, but that's probably it. (I haven't read the thread, I just posted right away)
Halo 2 is already the best selling game ever. So that list is already very very outdated. San Andreas won't be in the top 10, it doesn't appeal to the young age group let alone will most parents buy it for them, so there is no way it sell that good when already one age group is not buying it. I mean the first game isn't even on the list so why would this one.