Darkness envelopes the world - chaos reigns! Humanity fights back in the only way they know how: with forceful control. But how does one control creatures whose existence defies all logic? Nightfall: Martial Law is a stand-alone expansion to the competitive deck-building game Nightfall. Martial Law features a complete new set of cards with special new powers, and unleashes all-new vampires, werewolves, hunters, and ghouls. Martial Law also introduces the new feeding mechanic: feed your chained orders to give them greater effects!