Age of Steam: Mexico & China is an exciting new expansion for the Age of Steam board game series. These are mounted hardboard maps. The Mexico Map – originally released by the Steam Brothers as part of AoS: Mexico, Spain/Portugal – features a new special action called Nationalization, which thematically involves player track being nationalized. This new action adds great interaction among the players. The China Map – originally released by the Steam Brothers as part of AoS: China/South America – features another new special action called Diplomatic Pressure. This new action requires players to pay to connect cities into their network. This, coupled with the tough terrain of China, makes this new Age of Steam expansion an exciting and very challenging map.