From what I can discover with a bit of web searching... An actual release date hasn't been given yet. Bethesda is planning a press conference on June 14, 2015 - and they've announced that the first full reveal of the game will take place on June 18, 2015. Therefore, a release date will be sometime after that date.
Haven - 2010 Fallout 4-1 was released on: USA: 13 September 2013
The Unfinished Nation - 2004 Fallout was released on: USA: 4 April 2005
Fallout Nuka Break - 2011 1-4 was released on: USA: 10 October 2011
Fallout Nuka Break - 2011 2-4 was released on: USA: 9 August 2013
Ax Men - 2008 Fallout Zone 4-10 was released on: USA: 20 February 2011
It depends. After Fallout New Vegas's recent release and the announcement of Elder Scrolls 5, a Fallout 4 could be predicted to be released in 2012, at least. If that sells well, and Bethesda decides to continue the successful series, than there likely will be a Fallout 5.
Southland - 2009 Fallout 4-7 was released on: USA: 28 February 2012 Hungary: 28 February 2013 Finland: 28 July 2013
They most likely will, though Obsidian is making Fallout: New Vegas (which is not Fallout 4, it's just another game in the Fallout world)
There are currently six Fallout games. These include; Fallout 1, Fallout 2, Fallout 3, Fallout: New Vegas, Fallout: Brotherhood of Steel, and Fallout Tactics. There are more Fallout games in development and set for release on the horizon, including but no limited to; Fallout Online and a Fallout iPhone game.
The predicted release date for Fallout Online is 2012.
There are currently six Fallout games. These include; Fallout 1, Fallout 2, Fallout 3, Fallout: New Vegas, Fallout: Brotherhood of Steel, and Fallout Tactics. There are more Fallout games in development and set for release on the horizon, including but no limited to; Fallout Online and a Fallout iPhone game.
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