1. Halo: Combat Evolved (very first first FPS-game and the very first console-game to play in my life) :gun: Xbox 360
2. Halo 2 (best multi-player memories) :foodndrink: Xbox 360
3. Call of Duty 4: Modern Warfare (first game to play on Live) Xbox 369
4. Halo Reach (probably the best single-player experience ever) :celebration: Xbox 360
5. Half-Life series (Awesome) :nod: PC, Xbox & Xbox 360
6. Midtown Madness (first racing-game to play in my life) Xbox
7. The Elder Scrolls: Oblivion (best RPG I'v ever played)
bliviongate: Xbox 360
8. Portal (especially when I understood the Still Alive song) :dance: Xbox 360
9. Alien vs Predator (I had the best/funniest match i have played ever online with this game) :clap: Xbox 360
10. Dead Space (because it's scary as [censored] and i like the universe)
Altman Be Praised!!! Xbox 360
2,5. Monster Hunter Freedom (one of the best games ever) PSP