SIM4NEXUS applied the Nexus concept in 12 case studies, implemented at different scales: Regional, National, Transboundary, European and Global. The diversity of case studies allowed to better understand interlinkages of decision making across spatial scales, and support decision making in the short-, medium- and long-term (up to 2030, 2050 and beyond). Serious Game is available for 5 different case studies: Greece, Azerbaijan, Latvia, Netherlands and United Kingdom. In addition, the Global case study is accessible through an interactive visualization tool, where the complex modeling of nexus interlinkages is explained and demosntrated. To play the respective Serious Game, click on any yellow dotted CaseStudy on the interactive map. To access the visualitzation tool in case of Global case study, press the global icon down below.