And on to the bread and butter. Even tho many would argue the first two fallout games are better, Fallout 3 has more up-to-date graphics and an easier play-style. It is also MASSIVE, even more so if you grab the GOTY edition. There are tons of mods and a still active modding community. Check them out here!
As opposed to Fallout 1&2 this game is set on the east coast around Washington DC(The Capitol Wasteland). As always you can do as much or as little as you like and can play the Hero of The Day or just shoot everything that moves and proclaim yourself King Nothing.
The Fallout franchise was taken over by Bethesda and Fallout 3 and New Vegas are somewhat similar to Oblivion but only vaguely so. This game should have great re-playability. I've not finished my first play yet because there is so much to do!