NUTS!: War Tales! Operation Underworld 2026

Wars are won by ships and armies—but they can be lost on the docks. — Office of Naval Intelligence briefing, 1942

NUTS! Operation Underworld is a campaign book that explores the hidden war fought far from the front lines — along the docks, warehouses, and waterfronts that kept the Allied war effort alive. While armies clashed overseas, Naval Intelligence officers, Shore Patrols, detectives, dockworkers, and informants fought a quieter battle against espionage, sabotage, organized crime, and enemy infiltration at home.

Set in a World War II port city, this campaign places players in charge of investigating suspicious activity, managing port security, and stopping threats before they explode into disaster. Violence is dangerous, information is incomplete, and every decision carries consequences that ripple across the campaign.

This 62-page book includes:

Background on WWII port security, Naval Intelligence, and the waterfront war Campaign rules for Investigations, Patrols, Arrests, and Raids The Active Threat system: Axis espionage vs. Organized Crime Port Security and Threat mechanics that evolve with player actions Special rules for non-lethal force, informants, and civilian interaction Warehouse districts, docks, ships, and urban terrain guidance Sample missions and a full introductory Case

This campaign book is designed for use with the NUTS! World War II tactical rules.