Galaxy Survival: Space TD

A global catastrophe has destroyed the cornerstone of human civilization, and the Earth has lost its gravity. As the captain of the last surface spaceship, you failed to leave in time to rescue the innocent poor! The spaceship is now in ruins, and in order to escape from Earth, it must be fully repaired. The mutant species launch fierce attacks, and a slight carelessness will make the spaceship fall! While the invasion of monsters has not yet arrived, go to the surface to mine underground resources and use them to repair the spaceship! Control the spaceship, shoot down every ferocious mutant species, and escape from Earth!