Previous research has shown that games can facilitate learning of complex processes. This study investigates future geography teachers’ arguments when playing an urban spatial planning game. The game consists of a mat where small models represents residential buildings, institutions such as schools, hospital, police etcetera in a flood-prone area. A play master gives instructions to plan and develop the city. The game has a turning point, the city is exposed to severe flooding and afterwards the students are asked how to rearrange the city to become more resilient. The research questions include; when playing the game – A) what aspects does the students include when planning an urban area? B) what risks does the students identify? C) what preventive actions in order to increase the city’s resilience does the students identify after playing the game? A total of seven students participated in this study, all of whom studying to become upper secondary geography teachers. The game lasted for 40 minutes, was video recorded and transcribed. The inductive analysis focused on what aspects students considered in planning a city, both before and after the flooding for example to build further away from water and increase green areas, as well as what risks the students could identify. The results indicate that this type of game induce the students to, in a social setting, discuss and develop their understanding of sustainable urban planning and that this can be a valuable tool, both in school but also at the university level.