Location

Various places in the post-nuclear United States of America form the scenery in which the events of the Fallout series occur.

Regions

 * Capital Wasteland
 * Core Region
 * Mojave Wasteland
 * Midwest
 * Texas

Capital Wasteland

 * Little Lamplight based on Luray Caverns
 * Old Olney based on Olney Maryland

Core Region

 * New Vegas based on Las Vegas

Capital Wasteland
In the Capital Wasteland, there are 22 setlements, ranging in size from Rivet City, population of 43 named characters and 7 Stores, to Girdershade: 2 people and no merchants. Apart from Rivet City, there are 4 other major settlements: Megaton, which would be probably the first settlement the Lone Wanderer encounters after escaping the vault; Underworld, the city inside downtown DC full of ghouls; Tenpenny Tower, a former luxury hotel that Allistair Tenpenny lets people in for the right price- ghouls not apply; and the Citadel, home of the Brotherhood of Steel. bar those, there is the Republic of Dave, Canterbury Commons, Oasis, Paradise Falls, Temple of the Union, Little Lamplight, Arefu, Andale, and the Reilly's Rangers Compound are all settlements of a medium size, and all have related quests. Vault 101 and 112 both are also populated: Vault 101 is where the story starts, yet is closed after you exit for the first time and after the Trouble on the Homefront quest. Vault 112, home of the Tranquility Lane simulator, is populated only by RoboBrains and, briefly, the Lone wanderer's father, James.

Vaults
Miejsca