In this expansion to castle panic, the panic is building! with engines of war, players work as a team to give new resource cards to an engineer for building battlefield traps and keep-mounted ball I St as and catapults. These weapons better defend the castle from the growing monster threat, which uses siege engines to launch devious, powerful attacks. And they're now enlisted the help of a shaman, breathtaking, and Goblin saboteurs. Prepare your forces! the fight just added engines of war!.