City of The Great Machine. The Escalation Board Game Expansion |1-4 Players | Ages 14 and up | Steampunk | One-vs-Many | Hidden Movement | Cooperative & Solo | Average Playtime 60-90 minThe struggle between the Resistance and the Great Machine enters a whole new level. New Heroes with unique abilities join the side of Revolution, while the Great Machine enhances its Servants with powerful implants and sends its new secretly trained Ser vant into the field. The governmental Surveillance Zeppelin now cruises over the City, opening up new opportunities for both sides of the conflict. A copy of City of the Great Machine is required to