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 was released on July 19th, 2011 simultaneously on all platforms.

Description
"The residents of the Mojave have long assumed the trackless wastes of the ‘Big Empty’ are a no-man's-land, a desolate stretch where no living thing can survive. In Old World Blues, you discover that it is anything but..."

After being transported to the Big MT research crater, you find you're the only hope of saving the "Think Tank" – a strange group of post-human researchers who inhabit the facility. They enlist your aid to save them from their own experiments - experiments that have gone horribly out of control. As you explore the huge stretch of the Big Empty crater and its many underground labs, you’ll confront strange mutated animals, battle terrifying new atomic robots, and discover a new home base to call your own. Recover all the weapons, armor, and tech of the Pre-War era and use them to help save all of science! Bethesda says this will be the most humorous of all add-on's.

Plot
In Old World Blues you discover how some of the Mojave’s mutated monsters came into being when you unwittingly become a lab rat in a science experiment gone awry. You must 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.

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 give you the opportunity to change your own 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).
 * Old World Blues will, at some point, allow the player to alter the looks of their character.
 * Equipment will not be stripped from the player at the beginning of this add-on, and it features an open-world setting.
 * Like all New Vegas add-ons, companions cannot accompany the Courier to the new land.
 * In Old World Blues, some robotic appliances have personalities, all with different voices.
 * There will be an upgradeable base, The Sink, in this add-on.

Locations

 * Big Empty
 * Mojave Drive-in
 * The Cuckoo's Nest
 * The Sink
 * The Think Tank
 * X-2 Transmitter Antenna Array
 * X-8 Research Center
 * X-7a "Left Field" Artillery Launch
 * X-12 Research Center
 * X-13 Research Facility

Creatures

 * Cyberdogs
 * Lobotomites
 * Spore carrier

Robots

 * Mister Gutsy Mk3
 * Robo-scorpion
 * Robo-scorpion blaster
 * Robo-scorpion pincer
 * Giant Robo-scorpion
 * Securitron Mk. II
 * Think Tanks

Other items

 * Snow globe - Big Mt. Research and Development Center

Quests
The XP that is rewarded for quests is variable based upon your level when the quest is completed. The total XP split between the main storyline quests is approximately 3000 XP at levels 1-4 and 22000 XP at levels 45-50, the secondary quest XP ranges from 75 XP per quest to 550 XP per quest.

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.
 * 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".

Videos
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