Wilks was a space marine with a near-fatal flaw: he had a heart. Billie was a child, the only survivor of a far-flung colony outpost. Thrown together in the last hellish night of an Alien invasion, Billie and Wilks helped each other get out alive. Thirteen years later Wilks is in prison, and Billie lives in a mental institution, the nightmare memories of the massacre at Rim seared into her mind. Now the government has tapped Wilks to lead an expedition to the Aliens' home planet to bring back a live Alien. But the competition on Earth to develop the Aliens as a new weapons system is brutal. When Wilks's team departs on their mission, a trained assassin trails them. And what follows is no less than guerrilla warfare on the Aliens' planet — and Alien conquest on Earth!

Wilks, Billie, and Bueller were the last survivors of a devastating assault on the Aliens' home planet. But once their return to theSolar System made them refugees once more, fleeing Earth and its Alien infestation in a desperate attempt to stay alive. Now, in an otherwise unmanned military transport, they hurtle through space. Destination: unknown.

Little do they know that the cargo they carry with them is a legacy of death that they will ultimately have to face. Nor do they know that they head toward a remote colony and military outpost. This pocket of humanity at the very edges of space is at the mercy of a general named Spears with an agenda all his own. Now Billie, Wilks, and Bueller face a new nightmare, and it is nothing they could ever have imagined: a gift of madness from an Alien world, unbalanced mind, and the experiences of a mysterious pilot named Lieutenant Ellen Ripley.

Lieutenant Ellen Ripley awoke from her long journey in space with a hole in her memory and an overwhelming drive to survive. When she meets Wilks and Billie, two battered veterans in the war against the Aliens she realizes she's found two comrades in arms — and she's ready to take up the fight. Only then does she discover the devastating secret that lurks behind her long sleep. When she, Wilks, and Billie prepare to meet the Aliens head-on to turn a powerful Alien queen against her spawn in a battle intended to save Earth, that secret becomes her greatest weapon — and her greatest liability. As the fate of Earth hangs in the balance, Ripley and Billie must come to terms with what it means to be Alien… and what it means to be human.

Adapted from the comic book seriesAliens: Genocide (1991–1992)

A dying man becomes involved in a plot to steal royal jelly from an Alien hive, believing it to be a cure for his cancer.

Welcome to the former penal colony of Charon, where a labyrinth of tunnels offer shelter to an Alien hive. Professor Ernst Kleist rules—a paranoid tyrant whose speciality is making humans disappear. Captain Joyce Palmer is bound for Charon. Only she and a few hand-picked Marines can stop Kleist in his tracks. Only they can stop the professor’s most insane creation—the Rogue.

On the space station Innominata the infamous Dr. Paul Church has built a maze of tunnels. Church is hiding the results of his latest experiments. His aim: to bring human and Alien together as one being. Colonel Dr. Tony Crespi has one ambition — to work with Church. But one by one the men on Innominata have been dying in the attempt to meld Alien and man. When Crespi finds his way to the heart of the labyrinth he discovers a chamber of horrors—will he ever be able to find a way out?

Adapted from the comic book seriesAliens: Music of the Spears (1994).

Adapted from the comic book seriesAliens: Berserker (1995).

It follows detective Rory Malvaux and the crew of theVinza as they attempt to extract a group of scientists — including Rory's mother Jocasta — who have unexpectedly encountered Xenomorphs on the planet Rosamond 6. However, upon arriving, theVinza's crew discover the scientists are not only unwilling to leave, but may be engaging in foul play to preserve the very creatures that stalk them.

It follows the crews of two cargo starships, theVirginia and theUmiak, as an attempt to illicitly smuggle live Xenomorphs unleashes the deadly creatures upon them.

Set several decades before the events of the originalAlien, the story concerns the crew of the UNICHornblower, who are dispatched on a routine survey mission to Saturn where they discover an ancient extraterrestrial spacecraft in orbit aroundIapetus, one of the planet's moons. Upon boarding the mysterious vessel, the unprepared crew soon find themselves trapped in a fight for survival against the Xenomorphs that they accidentally awaken on board.

When his brother falls into debt with ruthless drug dealers, Tommy Chase is forced to take a one-time assignment piloting one of the organization's transport ships to wipe the slate clean. The journey takes him to the remote planet called Fantasia, where the dealers operate a secret drug lab kept safe by the horde of frenetic Xenomorphs that swarm Fantasia's surface. However, when the facility comes under attack from rival forces, the creatures intended to keep the operation safe become an unstoppable threat to everyone on the planet.

The story deals with rampant political discontent between the nations of Earth after the events ofInto Charybdis, and introduces Chad McLaren, the husband of Amanda Ripley, who is caught in the middle of both the interhuman conflicts and efforts by the conflicting sides to weaponize the Xenomorph. The novel also contains an exclusive tie-in game scenario based onAlien: The Roleplaying Game titledFallout.

Starring recurring protagonist Zula Hendricks, the novel is set on Shānmén, a mining colony run by the Union of Progressive Peoples which comes under attack by an Engineer starship that unleashes various Xenomorph-like mutations upon that planet.

The novel tells the life story of Jenette Vasquez long before the doomed mission to Hadley’s Hope, from joining a street gang, followed by prison, joining the Colonial Marines, and giving up her twin children Leticia and Ramón to be raised by her sister, leading into the events ofAliens, before cutting decades later to the Vasquez twins respectively joining the military and Weyland-Yutani, their independent investigations into their mother's death leading the two to a world soon-to-be-ravaged by Xenomorphs.