This workshop provides a game session for training participants in using alternatively methods for ideas generations in the design area of activities and functions permitted by physical interfaces. Instead of fixed procedure of design thinking we propose models useful to criticize existing artefacts and to structure the intuitions in a collaborative context. In this way Game-Play Design approach will support the design practice in a variety of ways, e.g. by facilitating lateral thinking training methods, offering tools appropriate to work by context techniques, investigating potential interfaces development, or by providing opportunities for collaborative design exploration and new concepts generation. Persons interested in participating should assume the role of gamers in predicting collaboratively novel uses of well-known objects placed in their unrelated scenarios. A potential outcome is to acquire a groundwork building method for managing and analyzing real-world scenarios of interaction with objects and environments. A further goal is to experiment unusual game design situations fruitful to stimulate the concepts generation using game materials furnished to support the overcoming of conditioning processes. The training in self-conscious design by game-play method could bring benefits to several design fields, such as service, urban, interaction and product design. In this perspective the workshop aims to suggest a subversive operation by anticipating the user needs without restrictions. The collaborative brainstorming method is intended to open design dialogues by removing the limits and conventions of the creative thinking.