Originally Posted by Luminous

As the title suggests, what is the video game you've spent the most time playing? This can include a game you've replayed over and over again, an online multiplayer game, MMO, or anything else like that. Oh, and be sure to include reasons why, of course, and maybe for fun, how many hours you think you've played of it. If you think some games you've played would be tied for top spot of time clocked, that's cool too.

For me, it's probably The Elder Scrolls IV: Oblivion. It has eaten up about ~200 hours of my time. There is so much to do in the game, and being a sandbox type game, I also just spent hours randomly walking around(I decided to flesh out the map entirely, so I embarked on a series of three hour walks around the wilderness). That, combined with quests and immersion add up to a lot of hours that fly by rather quickly.