Whether it's the 1950s American culture, retro-futuristic designs or post-apocalyptic setting that makes the Fallout universe so relentlessly addictive to play through is unimportant - all that matters is that innumerable fans have succumbed to the franchise's charms. From Wasteland through to Fallout: New Vegas, the series has drawn strength from its environments and aesthetics, with the locales often playing a key role in the narrative of each game. At the moment Fallout 4 is still shrouded in mystery; it hasn't been announced and Bethesda have let nothing slip with regards to when we might see it, or where it might be set. The only thing we've heard about Fallout 4 and even this is speculative is that it will be set in Boston; this following the release of leaked casting documents which contained references to the Massachusetts Institute of Technology. Sure, Boston would likely make for an interesting Fallout setting, given its links to the series' often mentioned Commonwealth region, there's probably a lot of lore to be seen and a decent story to be told. Add to this the conflict between the Railroad faction and the Institute, plus Boston's sights and a New England aesthetic and it's not hard to imagine a perfectly good sequel. But, in the interest of fervent speculation, surely there are better settings than that?