The biodiversity crisis, climate change, and major environmental changes create uncertainty and anxiety concerning our future. We now live with the threat of disasters that could profoundly affect our lives. Yet it is important to avoid passivity; museums and science centres must bring their visitors to engage in a deliberate and voluntary action. Several of them have opted to use role playing games or group games involving the construction of scenarios for the future. The session proposes to share various experiences to assess their scope and limitations