This chapter specifically adresses a generally percieved underlying challange of any educational game, namely the issue of educational effectiveness. This question is, however, almost impossible to answer, since it is dependent on context as well as a myriad of variables such as learning objectives, student background and educational theory like belief in active learning. From this perspective, the inclusion of the issue of educational effectiveness in this chapter is thus based on the experience with the game design and subsequent implementation of the two Matrix Games of Bellum Balticia and the Fictive Republic.