This is a third person car shooting game. The background is set in a secret base after the end of the world. Players drive vehicles loaded with fort to eliminate monsters in the target area. At the same time, they can play tower defense games with their classmates inside the base.

There are five target areas in the game. Each area will be opened to the next area. Players earn gold coins through the target area of customs clearance, buy items with gold coins, give items to students, improve the goodwill of students, unlock different forts, and install the forts on vehicles to pass more difficult checkpoints. In this process, players can collect stories about the base and classmates.