PODIUMSim provides a framework to develop scenarios of water and food supply and demand in relation to various policy options at river basin, sub-national and national level. It is an interactive excel-based tool, where users can project crop production by country. PODIUMSim explores questions such as: Can river basins feed their populations in 2025? What is the food surplus or deficit at the sub-national level and at the national level? and do we have enough water to irrigate the crops needed to ensure future national food requirements?