Fallout 4 has apparently been shown to several journalists behind closed doors at E3 2013 last week and, according to a new report, the post-apocalyptic RPG will be released in 2015 for the PC, PlayStation 4, Xbox One, as well as for PlayStation 3 and Xbox 360.

Bethesda has been working on quite a few different projects, as it's set to publish titles like The Evil Within, Wolfenstein: The New Order, of The Elder Scrolls Online.

Meanwhile, it seems that the developer is also working on Fallout 4, as apparently some teaser info has been revealed behind closed doors at E3 2013.

According to a report from BubbleNews, Fallout 4 is 55% done but Bethesda doesn't expect to release it until October 2015. The game will be a cross-gen one, meaning it will appear for PC, PlayStation 4, Xbox One, PlayStation 3, and Xbox 360.

The platform list might change, but its locations have been nailed down, as they'll focus on Cambridge, Somerville, Arlington, and the Boston area.

The story is unclear, but there will be vaults that can be explored by the player. A local cooperative multiplayer mode could also be included but it's not yet clear.