This is a game about reducing Earth’s average temperature to avoid human extinction. Reducing carbon emissions is vitally necessary to stop the increase in temperature. However, there are other mechanisms that can actually pull CO2 out of the atmosphere or block sunshine from reaching Earth. You can try carbon sequestration or space-based solar shades in this game. In the game, you represent a global network of environmental activists. You need to place your activists on a game board that represents institutions and industries across various nations. Place your activists in a manner that maximizes support for the temperature reduction strategy that you choose.

In this game, temperature change is a function of the amount of carbon in the atmosphere and the amount of sunlight reaching the surface of the earth. Temperature change is measured in degrees Celsius from the global average temperature baseline at the beginning of the game. The amount of temperature change impacts other elements in the game, such as the severity of weather events. The more carbon dioxide in the atmosphere, the higher the change in temperature. The higher the change in temperature, the more severe weather events. You can slow the rate of temperature change by increasing your geoengineering points. These points represent efforts to block or reflect sunlight before these photons can increase the temperature of the atmosphere.