CIMULACT aims to establish and improve a genuine dialogue between citizens, stakeholders, scientists, and policy makers in the co-creation of European research agendas, where visions and scenarios can be developed, debated and transformed into recommendations and suggestions for research and innovation policies and topics. CIMULACT is developing and experimenting with methods for citizen participation on long-term foresight, as well as building capacities in already existing methods. The experiments are exploring a variety of methods in order to test and inspire the research community with a broad range of options for citizen and multi-actor engagement in research and innovation priority setting. Furthermore, the diversity of methods also allows targeting different societal groups, enriching the feedback and validation of the research programme scenarios from a wide range of societal perspectives.