Well I've spent loads of time on Elder Scrolls 4:Oblivion. It's just such a massive game that seems to have endles possibilities and I'm finding it very addictive at the moment. Leveling up every Ability takes time then you've got the Guild quests, not to mention Knights of the Nine and Shivering Isles. It's quite scary how addicted I've become. Oh well, not as bad other addictions!
There was also the Devil May Cry series of games that I just had to complete on Dante must Die mode. the first one just sucked me in with such a different and cool game. The second; although good; was as addictive as was sadly quite easy. The Third however, took me back to the First game and actual posed a challenege. Completeing that with Royal Guard on Dante Must Die mode was tough, but well worth it! I know the Fourth's out, but I'll bide my time for now. I've still gotta complete Burnout Paradise which is another cool game!