Are you a Siege Genius? A Tactical Mastermind? or simply someone interested in upheaving entire empires? Then Join the Siege. Age of Empires: Castle Siege brings a fast-paced experience and all the strategy and combat that Age of Empires is renowned for to multiple devices. Choose from one of several civilizations, expand your castle into a massive city, and defend your walls against marauding empires. When your newly trained army is ready, siege other castles online with precise control and tactical depth as you control every unit’s action on-screen during the battles.