The game ProjectPlanet addresses key areas of sustainable action that hold both high societal relevance and significant importance for the daily lives of young people and young adults. These include sustainable agriculture, alternative energy, plastics and recycling, as well as luxury and consumption. Throughout the game, players are repeatedly faced with so-called dilemma decisions. Such dilemmas are particularly valuable from an educational perspective because they do not allow for simple, clear-cut solutions, thereby encouraging multi-perspective and reflective thinking. The target audience for the game includes students from the 7th grade onward as well as young adults. It was developed by the Didactics of Natural Sciences at the University of Bamberg in cooperation with the renowned game developer upjers GmbH from Bamberg, as well as with five different schools from the surrounding area.