: Games play a dual role: they test the player’s competence, and at the same time provide learning opportunities. They offer a simple form of a reward – the pleasure of playing, without serious consequences for failure. Tests can be converted into games. In this context, it is valuable to create rich “skins” in which tests can be clothed with no major effort. This paper reports research aimed at improving the scope of skins. We have primarily restricted ourselves to skins that accept a test consisting of objective type questions and use it to provide students with a gaming environment. A number of issues are addressed in the context of designing such a system, including collaboration, content creation, content grading, reward structure, team building and personalization. After a discussion of these issues, we proceed to describe features we were able to incorporate in a specific design inspired by the cricket metaphor, which we have implemented. We have started using this game ...