The Great War

Lore & Background

The sheer speed of the exchange meant that most of humanity had no warning; news broadcasts were cut short by mushroom clouds rising over cities like San Francisco and Washington D.C. The immediate aftermath was chaos: infrastructure collapsed, governments dissolved, and survivors were left to face a world poisoned by radiation. Those who managed to escape the initial blasts retreated into underground vaults or fled into the countryside, only to find that the surface had become an unforgiving desert of dust, mutants, and scavengers.

In Their Own Story

The radio crackled with a final, static-filled broadcast from a news anchor in San Francisco. "We are receiving reports of multiple impacts over..." The voice dissolved into screams as the sky turned a blinding white. Outside, the streetlights flickered and died, replaced by the glow of fire rising from the horizon. A man clutched his wife's hand, looking up at the mushroom cloud blooming over the bay, realizing that in less than an hour, everything they knew was gone.

Reader's Guide

The Great War is the pivotal event that shattered the old world and birthed the Wasteland. The war lasted only about two hours, yet its impact was instantaneous and total. Billions perished in the initial blasts or died shortly after from radiation sickness and societal collapse. Major cities were reduced to radioactive ruins, while the environment suffered permanent damage. Survivors either hid in underground vaults—many of which were actually social experiments—or struggled on the surface against mutants, raiders, and scarcity. This event is the foundation of all Fallout stories. It explains the existence of radiation, the mutation of creatures, and the desperate struggle for resources that defines life in the Wasteland. Every faction, from the Brotherhood of Steel to the New California Republic, exists because of the chaos left behind by those two hours.

Did You Know?

• The entire nuclear exchange lasted only about two hours before the world was effectively destroyed.
• Many Vaults were not built for survival but as social experiments designed to test human behavior under extreme conditions.
• The Great War ended the Sino-American War between the US and China, but it also ended nearly all organized civilization on Earth.
• Pre-war technology, such as power armor and micro-fusion packs, became legendary artifacts in the post-apocalyptic world.