Through the world, developed coastlines are increasingly vulnerable to sea level rise, marine submersion and erosion. According to the 2021 Intergovernmental Panel on Climate Change report, coastal areas will be subject to a rise in sea level of between 0.15 and 0.29 metres by 2050. In addition to sea rise, more frequent and severe storms are expected to accelerate marine submersion events and coastal erosion. French coastlines and especially the Occitanian coast (western part of the Mediterranean coast) is not spared by these phenomenon’s. Indeed, since 1945 French coastlines, had lost 2600 hectares of land, and 25% of the coastlines are eroding. The Occitan coast is particularly vulnerable to these phenomena because of its strong urbanization, that started in the 1960s. Especially since Xynthia storm that affected the French Atlantic west coast in 2010, a growing regulatory framework had been put in place. The need for tools to involve citizens in the transition of coastal territories remains. The serious game LittoWag was created to meet these needs. Firstly we will review the construction of the game and the representations of (i) the uses of the Occitan coastline, (ii) the hazards (erosion, marine submersion) (iii) the stakes, (iv) the possibilities of adaptation face to the risks. Secondly, we will present the analysis methodology of the workshops conducted with the users of the territory and the first results obtained. We analyse the learnings (cognitive, normative, and relational) and coastal risk transition scenarios (coastline management solutions, and uses of the territory adaptation).