The Fallout TV series is a hit, and so Prime is taking the obvious next step and firing up a "reality competition series" called, and based on, Fallout Shelter, a popular 2015 mobile game (that later came to PC and consoles) in which players design and manage one of Fallout's underground Vaults, where the survivors of nuclear war hide from the irradiated wasteland above.
Fallout Shelter may not be the most action-packed game in the series, but you can't have people running around with high-powered weaponry popping each other's skulls like giant mutated zits in the real world—not yet, anyway. So, Fallout Shelter is a practical compromise, and it's also true to Bethesda's take on the setting: Cram a bunch of people into a small space, make them suffer, and see what happens.
