Samurai Battles: Ninja Attack 2013

Game description from the publisher:

Bodyguards rattled their weapons on the other side of the wall as the Shogun mumbled something in his sleep. Silently, a shadow dropped from the ceiling beam, landing soundlessly on the floor. The ninja paused for a moment, wondering if he should use this opportunity to decapitate the enemy army, but he had not been given such an order. His mission for today was already complete. Besides, he could get the Shogun next time – and the morning will bring a very unpleasant surprise on the battlefield! Soundless, the Ninja leaped out the window, crept behind the guards, and vanished into the maple forest...

The nature of warfare will change forever with Samurai Battles: Ninja Attack, the first expansion for the unique military history board game Samurai Battles. Within this box lurk clever ninja. Though not as strong on the battlefield as samurai, they are indispensable spies, assassins, and saboteurs. Will you use their stealth to undo your enemy's plans?

Meanwhile, fast and powerful mounted samurai archers can dash across the battlefield and strike down foes from anywhere, while stalwart samurai foot archers rain down death from afar. Why engage the enemy up close when you can attack from a safer distance?

Whether you're using the "Commands & Colors" and the "Art of Tactic" rule system, Samurai Battles: Ninja Attack includes eight new scenarios for each rule system.