The story of serves as a direct sequel to the original 2004 game, picking up roughly 19 years after the first alien's UFO was shot down. The Setup: A Rescue 19 Years Late
To survive the "frantic, arcade-like" warfare, you are aided by the Fat Kids —an underground society of friendly humans who provide weapons and gear. Alien Hominid Invasion
As you push through the city blocks toward the enemy headquarters, you face off against massive bosses that reveal more about the fate of the original alien. The narrative is described as surprisingly , providing a bridge between the 2004 classic and the current invasion. If you're looking for more details, Alien Hominid Invasion Guide - Steam Community The story of serves as a direct sequel
By the time the fleet arrives, the world has changed. The "not-so-secret" Agents have bulked up with advanced armor, shadow tech, and robotic drones to prevent another incident. The narrative is described as surprisingly , providing
After the lone yellow alien from the first game crash-landed and faced off against the FBI, a fleet of its fellow hominids aboard a massive witnessed the chaos from deep space. They immediately set a course for Earth to rescue their comrade, but due to the vastness of space, the journey took nearly two decades. The Invasion: Chaos and Mutants