"Earthfall" is a multiplayer shooting game that can have up to four players, representing a battle against humans and resisting the invasion of aliens. Throughout the narrative battle, players must cooperate to resist various enemy aliens and uncover the secrets behind this series of catastrophic events.

The background of "Earthfall" was set in 2032. It was a popular impact and it attracted a year after the enemy's aliens attacked the earth. All major population centers were completely destroyed. These aliens flocked to the countryside and swept their lives. The player is just an ordinary citizen, who takes up arms to protect the last humans who are lucky enough to survive and fight against the fierce alien army.