Galaxy Annihilation Steam CD Key

Galaxy Annihilation is a shoot'em up where we need to protect the planet earth from an impending alien attack. Features 3 difficulties (easy, normal, hard); 31 missions; survival mode; 4 worlds; 15 ships; 12 weapons; 13 powerups; many permanent upgrades to unlock; 8 bosses; 14 achievements to unlock.
more information