VEX is a collectible card game that comes in five different sets: I - Nations of the World II - States and Provinces III - Historical Entities IV - Cantons and Prefectures V - International Entities All in total, there are 1000 different cards, each showing a different flag, and the different characteristics of that flag.There are a variety of games included in each set, using the statistics and characteristics of the flags as their basis.More information can be found at the publisher's website www.sixsided.com - BoardGameGeek