Fallout: A Post Nuclear Role Playing Game is a post-apocalyptic computer role-playing game that was developed and published by Interplay in 1997 and is the first game in the Fallout series. The game takes place in the year 2161 on the West Coast of what used to be the United States of America, particularly in California.

Fallout 2 is a post-apocalyptic computer role-playing game that was developed and published by Black Isle Studios in 1998 as a sequel to Interplay's Fallout. The game takes place in the year 2241 on the West Coast of what used to be the United States of America, mostly in California and Nevada.
taken from fallout wikiWe really need to discuss these games, The 3rd one is cool, But it doesn't have that ol' fallout feel.