"SIGMATA: This Signal Kills Fascists" is a cyberpunk tabletop role-playing game about ethical insurgency against a fascist regime, taking place in a dystopian vision of 1980's America.
Players assume the role of Receivers, the superheroic vanguard of the Resistance, who possess incredible powers when in range of FM radio towers emitting a mysterious number sequence called "The Signal." When the Signal is up, Receivers lead the charge against battalions of Regime infantry and armor or serve as the People's Shield, protecting mass demonstrations from the brutality of a militarized police force and neo-Nazi hooligans. When the Signal is down, however, Receivers are mere mortals, desperately fleeing from a powerful state that senses their weakness.
It's called the Sigmata, a Signal-induced stigmata, because it is a both a blessing and a curse. At least when you're marked by the state, you can’t sit on the sidelines anymore.