My first game addiction was Marathon (space game ancestor of Halo). Marathon actually got me into Poser (game character mods).  When I was a kid there were NO video games. In college "Pong" came out-then Space Invaders (in arcades next to pinball machines).

 Many years later I got my first home computer- a Mac. My first game addiction was Marathon (space game ancestor of Halo). Marathon actually got me into Poser (game character mods). Later it was Jedi Academy and it's ilk. Few games on the Mac back then.

 

 Then came Halo- and my Xbox. Online games against real world friends. Gradually lost interest in online shooters.

A colleague suggested I try an RPG. So I got Star Wars: Knights of the Old Republic! STORIES! Character Development! 

  Yep! Mass Effect1 and 2. Excellent!! 

I was quite addicted to Elder Scrolls: Oblivion. The next installment comes in November!

Quite into the Dragon Age series as well. Never got into FableII- although I did get hooked on FableIII- so maybe I should revisit FableII

 The only "shooters" lately were Star Wars- The Force Unleashed I and II. Fun-but not addicting- good story-but brief and linear. Most of the DLC is aimed at the Dark Side character- and I played the Light Side endings.