Old World Blues

Old World Blues is the third add-on for Fallout: New Vegas, developed by Obsidian Entertainment and published by Bethesda Softworks. It is scheduled to release simultaneously on all platforms in June 2011.

Plot
In Old World Blues you will discover how some of the Mojave’s mutated monsters came to be when you unwittingly become a lab rat in a science experiment gone awry. You'll need to scour the pre-War research centers of "the Big Empty" in search of technology to turn the tables on your kidnappers or join forces with them against an even greater threat.

The kidnappers in question are actually the remnants of a group of pre-War scientists, whose brains have been preserved in mechanical "bodies" consisting of a nutrient jar and three monitors, two of which show human eyes, and the other a human mouth.

Overview
Like all New Vegas add-ons, Old World Blues will raise the level cap by 5. Also, the add-on will offer a new trait (and respec your traits if you've already chosen them) that will allow you to cap your level at 30 (or current level if you’re already over 30).

During or after Old World Blues you will be able to re-work the looks of your courier.

Equipment will not be stripped from the player at the beginning of this add-on, and it features an open-world setting.

Like Dead Money, you will not be able to leave Big Empty until the main quest in Old World Blues is completed, but you will be able to return to Big Empty after leaving.

You will be kidnapped to Big Empty by unknown kidnappers and you will have the choice to join forces with them, or go against them.

Locations

 * Big Empty
 * The Sink

Creatures

 * Lobotomites

Robots

 * Think Tanks
 * Mister Gutsy Mk3
 * Robo-Scorpion Pincer Mk3
 * Robo-Scorpion Blaster Mk3
 * Securitron Mk. II

Characters

 * Biological Research Station
 * Doctor Mobius
 * Doctor Klein
 * Blind Diode Jefferson
 * Muggy
 * Light Switch 02
 * Toaster
 * Ulysses
 * Christine
 * Light Switch 01
 * Sink Central Intelligence Unit
 * Sink Auto-Doc
 * Sink

Weapons

 * Energy staff
 * Sonic emitter pistol
 * K9000

Armor and clothing

 * Ulysses's costume

Behind the scenes

 * In Dead Money, Father Elijah describes the Big Empty as "a treasure box, a scientific graveyard of Old World misery". Additionally, mentions of the Big Empty act as a trigger for the Things to Come! challenge. The Big Empty was a location that was scrapped from Black Isle's canceled Fallout 3.
 * At some point, Chris Avellone set his location on his Twitter profile to Big MT, Mojave, placing the Big Empty as a location within the Mojave Wasteland and thus teasing its possible appearance in a future Fallout: New Vegas add-on. Since then, Avellone has also changed his Twitter avatar, which has been speculated to depict ODYSSEUS, the schizophrenic AI overseer of the Big Empty.
 * J.E. Sawyer has suggested that Old World Blues will be the most humorous of the New Vegas add-ons.
 * "Mean Old World Blues" is the title of T-Bone Walker's 1945 remake of his 1942 opus, "Mean Old World".

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