In 2008, on the Xbox 360 nearest me, I completed:

[Squilliam]

1. Mass Effect
2. Lost Odyssey
3. Halo 3
4. Gears of War 1
5. Gears of War 2
6. Condemned 1
7. Condemned 2
8. Blue Dragon
9. Fallout 3
10. Fable 2
11. Dark Sector
12. Dead Space
13. Mirrors Edge
14. Ninja Gaiden 2
15. Kameo
16. Mercenaries 2
17. Oblivion

What about yourself? I listed them in the order I could remember them! Probably a couple I missed as well.