The highlight of a one-year long seminar on sustainable municipal development took place from the 30th May to the 3rd June 2022. For a student’s exchange with the IPAG (Institut de Préparation à l’Administration Générale) at the Université de Bretagne Occidentale students from the Hochschule Kehl traveled to Brest. The international students’ group successfully played the LOTUS’ serious game urbEN during the week. To prepare the game the students worked on different aspects of sustainability in municipalities since July 2021 and presented their research in May, when the French students visited Kehl.