The aim of the game is to keep greenhouse gas emissions from transport as low as possible in real-life examples. The means of transport available in the game are bicycle, train, underground, tram, ferry, electric car, bus, hybrid car, conventional car or plane, each of which has its specific CO2 equivalent per person-kilometre. The players should now find a suitable solution for the annual mileage in a case study of a fictitious person (commute to work, holidays, leisure time, excursions). The player or game group that proposes a practicable solution with the lowest emission wins the game. Different large wooden cubes are used for a vivid representation of the emissions. —user summary