What game has/had kept you occupied for the longest time

The game that I consistently played for the longest amount of time was Oblivion. I had played the game ever since the game was release till this past July! I played the game so long, that's why you hear me saying I'm not playing it like I used to. I played Oblivion till there was nothing left for me to discover!

Lemme think.. Oblivion not yet for me, but will be soon. At the moment, Oblivion would be on 5th place.
5th: Oblivion
4th: Final Fantasy X
3rd: Disgaea
2nd: La Pucelle Tactics (too bad that may savegame with my lvl 4000 Succubus is gone...)
1st: WoW

WoW was the 1st game I played 7 months. Not sure how many hours I played it though. I remember something over 300 hours for LPT, about 150 hours for Disgaea, 130 hours for FFX and maybe 80 for Oblivion.

5th: Morrowind
4th: Oblivion
3rd: Baldurs Gate 2
2nd: Frontier Elite 2
1st: Duke Nukem 3D

4th: FF
3rd: NWN
2nd;Disgaea
1st:Oblivion

Looks like I'm not the only person who has played Oblivion for an eternity! I'm glad to know I'm not alone in that.