Half a century after the Red Faction resistance freed Mars, the red planet again becomes a battleground. Colonists struggle for survival in the underground mines after the surface is rendered uninhabitable. When Darius Mason, grandson of revolution heroes Alec Mason and Samanya, unknowingly releases a long-dormant evil, Armageddon is unleashed on Mars. As settlements are torn asunder, only Darius and the Red Faction can save mankind. The battle will take them to the core of the storm-blasted planet through ice caves and lava flows until they are face to face against the unspeakable threat.

Fallout: New Vegas similarities to Fallout 3 are obvious. The setting is different, but the aesthetic is the same – crumbling buildings, settlements comprised of shacks, unending waves of dusty, tortured wasteland dotted with ruins from a happier past. The combat is the same, with the same divisive VATS system that lets you target limbs or gun arms to cripple an enemy's ability to fight back. You still rely on your PIP-boy, a Filofax for the post-apocalyptic future, to organise the weapons, armour, quests, information and salvage that you can scavenge from your hopeless surroundings.