Fallout 4 is an action role-playing video game developed by Bethesda Game Studios and published by Bethesda Softworks for Microsoft Windows, PlayStation 4, and Xbox One. Released worldwide on November 10, 2015, it is the fifth major installment in the Fallout series. The game is set within an open world post-apocalyptic environment that encompasses the city of Boston and the surrounding Massachusetts region known as "The Commonwealth". The main story takes place in the year 2287, ten years after the events of Fallout 3 and 210 years after "The Great War" that caused catastrophic nuclear devastation across the United States.
Fallout 4's gameplay is similar to that of Fallout 3 and Fallout: New Vegas, the previous two main entries in the series. Returning features include a camera that can switch between a first-person and third-person perspective, and the ability to roam anywhere on the map. Fallout 4 introduces new features including a layered armor system, base-building, a dynamic dialogue system featuring 111,000 lines of dialogue, an in-depth crafting system which implements every lootable object in the game, and much more. Enemies such as mole rats, raiders, super-mutants, deathclaws, and feral ghouls return in Fallout 4, along with the companion Dogmeat.
Players have the ability to roam anywhere on the map, and leave a conversation at any time. They have the ability to customize weapons; the game includes over 50 base guns, which can be crafted with a variety of modifications, such as barrel types and laser focus, with over 700 modifications available. Power Armor has been redesigned to be more like a vehicle than an equipable suit of armor, and can be modified, allowing players to add items such as a jetpack or selecting separate types of armor for each part of the suit.