Computer games are considered as powerful tools to learning and they have a potential for educational use. However, the lack of available comprehensive design paradigms and well-designed research studies about the question of “how to” incorporate games into learning environments is still a question, despite more than thirty years' existence of computer games and simulations in the instructional design movement. Setting off from these issues, a formative research study is designed to propose an instructional design/development model, which may be used for creation of game-like learning environments. Depending on the results and with the inspiration from fuzzy logic, an instructional design/development model for creating game-like environments, which is called as “FIDGE model” is proposed.