Climate change is an ubiquitous topic that is discussed a lot both in politics and in society. Additional gases such as carbon dioxide emitted by humans contribute to the greenhouse effect and warm the earth. With an average consumption of 9.6 tons of CO₂ per inhabitant, germanys average is twice the global average of 4.8 tons. But how many people actually know what exactly affects the climate and how they could help reduce the global rise of temperature or are most people unaware of the consequences of global warming? In order to investigate these questions, a digital game was developed with Unity3D, which focuses on the greenhouse gas CO₂ and should investigate whether the environmental awareness of the users towards the CO₂ emissions can be improved and at the same time educates potential CO₂ issuers.