Many toys or games are designed with rules that involve chances and strategies. These kinds of toys and games are fascinating to their players who were often engaged to the uncertainty and challenging properties embodied in them. Since these kinds of toys and games have existed in a long history and fit into human being’s needs and wants, this study is intended to disclose their fascinating effects. And by doing this, a new research field that focus on studying the interactivities and effects caused by these interactivities between toys and games and human players can be suggested. Therefore, this study has two purposes: 1. To analyze the similarities and differences between games of chances and strategies in terms of their forms, as well as play functions; 2. Through the execution of the above task, to demonstrate how we can apply the analyzing approaches of “UE (Edu-tainment) Study” to detect out the “grammar” of these games, and therefore, to understand how these games are so attractive and popular.