This paper highlights conclusions about six experiments conducted with StimCards, an interactive and configurable Question and Answer game. It has been created in the context of the Robadom project whose goal is to propose a homecare robot for seniors. In this project, StimCards is applied to cognitive stimulation. This game is special because users can create their own questions and their own game scripts, and decide which digital devices will be used to interact with. Two experiments have been realized to evaluate the possibility for users to create game scripts. Two other experiments compared children and seniors. They evaluated StimCards acceptability and the preferred users' computing interlocutor. Results showed that it is so easy to create game scripts that children can do it. Both children and seniors liked StimCards, and children preferred to interact with a robot, rather than a computer or a virtual character.