Are we alone in the universe ? It is a great question. Of course noooot
Space invader was born over 40 years ago (1978), as a classic Martian killer game. On this occasion the Martians are taking revenge; They will try to conquer humanity.
Avoid being hit by land ships or being surpassed. This will be your end.
Take the reins of an authentic Martian spaceship, get resources, and feel as a genuine invader ... ... for humans, let none ... survive ... enjoy !.