Greatest game ever made?
The only games I have played that rival Fallout 3 for depth are The Elder Scrolls Series, also by Bethesda. The story is one of the greatest ever told in gaming history, and it probably has the most complex backstory in a game I have ever seen.
The visuals are absolutely stunning. In contrast to Oblivion, the player is met with the horrifically bleak landscape of the Wastes, which is just as much a thrill to explore as Oblivion's Cyrodiil was.
You can easily log hundred of hours on this game and still have so much more to do. If you call yourself a gamer, you must try this game.