Fallout: Brotherhood of Steel follows the story of John Hancock as he discovers a powerful alliance that could either save or destroy humanity. The Brotherhood, an elite group of superhuman warriors, are on a quest to unite the people and create a new society.
Players take control of Hancock, using his abilities to fight against various enemies in a post-apocalyptic world. The gameplay involves exploration, combat, and character development, as players must collect and upgrade Hancock's powers to progress through the story.
The game features an action-adventure style gameplay, with a mix of shooting and melee combat. Players can choose from various weapons and abilities, such as the "Power Fist" and "V.A.T.S." system, which allows for strategic targeting and execution of enemies.