Space Shooter Challenge is super fun online game that you can play for free on PC and mobile. In Space Shooter Challenge you need to destroy all aliens to save the eart! Play around and have fun! Space Shooter, online game, free game, PC game, mobile game, shooting game, alien invasion, space battle, save earth, skill game, HTML5 game, kids game, action game, interstellar, strategy game, arcade game, spaceship, space combat, mobile gaming, online gaming