A loyalty program with game that executes games on a smart card, wherein the loyalty program with game can also be used as a simple loyalty program without game, no major modifications need not be made to shop terminals, and the number of times customers can play games can be limited according to sales...http://www.google.de/patents/US20020112236?utm_source=gb-gplus-sharePatent US20020112236 - Smart card, method for loyalty program using smart card, and smart card system
