Fallout 4 expansions typically add new regions and map areas, new quests and faction content, new weapons and armor, new creatures, settlements and dungeons, and additional gameplay options (for example, the ability to lead Raider gangs).
All Fallout 4 expansions require the Fallout 4 base game, which is sold separately.
Expansions add varied new areas, including an amusement-park–style region with multiple themed zones and surrounding wasteland, plus a remote island region that includes dungeons, settlements, and a larger land mass.
Expansions are sold as digital downloads and are designed for single-player play; the Fallout 4 base game is required and sold separately.