
This game is basically about how to defense the earth from the attackers who are from the outer space. Once the guardians (players) get warning from the NASA Earth Data, they have to solve the problems caused by the attackers. For instance, the attackers cause the melting of iceberg in arctic. This disaster is detected by the National Snow and Ice Data Center (NSIDC DAAC) and this information is turned into a warning to the players. The players have to think of the solutions by using the list of items provided. There is a time limitation for each challenge. The players have to overcome the problems faced in time or else the attackers will conquer the Earth and the players lose the game.