Broken Steel

Broken Steel will be the third Fallout 3 downloadable content pack, to be released on May 5, 2009 for Xbox 360 and Games for Windows Live.

Overview
In this DLC pack, the player will join the ranks of the Brotherhood of Steel and rid the Capital Wasteland of the Enclave remnants once and for all.

In addition to amending the main quest to let players continue their adventures after the end of the main quest and raising the level cap to 30, Broken Steel's quest line is announced to be of the same length as the ones of Operation: Anchorage and The Pitt. .

Broken Steel will also add a couple of new side quests, most of which have to do with escorting freshly processed clean water across the Wasteland and protecting it from Raiders. Broken Steel will take about five hours to complete and side missions could take up to an hour to finish. 

The third DLC for Fallout 3 will add new enemies including Feral Ghoul Reavers, Super Mutant Overlords and Enclave Hellfire Troopers. These will be equipped with new armor and weaponry which the player can acquire. Broken Steel will also add several new perks to cover the additional 10 levels as well as new encounters.

Story
Broken Steel alters the ending of the original Fallout 3 to allow continued play after the end of the main quest line. This means that when it is time to go into the reactor at the end of Take it Back!, you can still go in yourself or you can send one of three side characters. However, even if you go yourself, you do not die. Instead, you survive the ordeal and wake up two weeks later at the Citadel. If you allow the Purifier to explode, the game will still end.

The new content starts about two weeks after the events of Fallout 3's main quest and begins in the vicinity of Project Purity which is now up and running. The battle between the Brotherhood of Steel and the Enclave is still ongoing and the player is tasked with helping to build a Tesla Cannon, a new, more powerful weapon for the Brotherhood. Once you have retrieved the necessary parts from Olney Powerworks, an old power plant, and the Cannon has been built, you travel to Adams Air Force Base via the Presidential Metro Line where the assault on the Enclave begins.

It has been announced that the player's action throughout Fallout 3 will be woven into some of the quests in Broken Steel. For example, if the player decides to infect Project Purity with the modified FEV, it will affect how the Capital Wasteland looks as well as the interactions with the local inhabitants.

General

 * Level cap raised to 30
 * New encounters

Locations

 * Adams Air Force Base
 * Presidential Metro Line
 * Olney Powerworks

Perks

 * Nerves of Steel
 * Puppies!

Quests

 * Altered main quest line
 * New storyline after Take it Back!
 * New side and unmarked quests

Armor

 * Enclave Hellfire Power Armor
 * New armors

Weapons

 * Heavy Incinerator
 * Tesla Cannon
 * Tri-Beam Laser Rifle
 * Violator

Enemies

 * Super Mutant Overlord
 * Feral Ghoul Reaver
 * Enclave Hellfire Trooper
 * Albino Radscorpion

Characters

 * Margot
 * Paladin Tristan
 * Scribe Bigsley

Quests and achievements
On April 19, trueachievements.com released a possible set of achievements for Broken Steel following an update to Fallout 3.