Chronological order of the 'Alien' film movies + 'in universe' time line watch list

30 April 2025

A Chronological Guide to the Alien Film Universe

The Alien franchise kicked off in 1979 with Ridley Scott’s landmark film, Alien, quickly setting a new standard for science fiction horror. But as the series expanded—moving both forward and backward through its own timeline—the chronology became just as intriguing as the movies themselves. This guide is your map to navigating the Alien series in two key ways: the order of release and the in-universe timeline. Because the films weren’t released sequentially, experiencing them by either method tells a very different story.

From Scott’s dark vision of space terror to James Cameron’s action-packed sequel Aliens, each film reshapes the Alien mythos. Later entries like David Fincher’s bleak Alien 3 and Jean-Pierre Jeunet’s far-future Alien: Resurrection take the saga into grim new territory. But the franchise didn’t just move forward; it also traveled back. Prequels Prometheus and Alien: Covenant jumped centuries earlier to explore humanity’s disastrous first contacts with the origins of the terrifying Xenomorph. This guide will trace that complete, terrifying history from beginning to end.

In space no one can hear you scream.

The Prequel Era

PrometheusReleased: 2012

Timeline: 2089–2093

A team of scientists, funded by the dying billionaire Peter Weyland, travels to the distant moon LV-223 seeking humanity's creators, the "Engineers." Instead of benevolent gods, they find a derelict bioweapons facility. This film explores the theme of flawed creation on multiple levels: the Engineers created humanity, humanity created the synthetic David, and both creations ultimately rebel. The crew's quest for answers unleashes the Engineers' black pathogen, a mutagenic agent that results in horrific lifeforms and signals the birth of a cosmic nightmare.

Lore Note: The film was initially developed as a direct prequel to Alien, but Ridley Scott pivoted to make it a more standalone story that explores the larger universe, though it clearly sets up the events of the original film.

Alien: CovenantReleased: 2017

Timeline: 2104

A decade later, the colony ship Covenant diverts to an uncharted paradise world. There they find David, the android survivor of the Prometheus mission, who has taken on the role of a mad biologist. In a dark twist on Frankenstein, David reveals he used the black pathogen to eradicate the Engineers and has spent the last ten years methodically experimenting to engineer the perfect organism. This film serves as a grim bridge, explicitly showing how David’s nihilistic obsession with creation leads directly to the iconic Xenomorph.

Lore Note: This film introduces the "Neomorph," a pale, more organic precursor to the Xenomorph. Its disturbingly rapid and violent life cycle was conceived to show an earlier, more chaotic stage of David's experiments before he perfected his "symphony of death."

The Pre-Ripley Era

Alien: Earth (TV Series)Expected: 2025

Timeline: 2120

Marking the franchise’s first major story set on Earth, this prequel series unfolds just two years before the events of the original film. A crashed alien spacecraft triggers a high-stakes investigation by a tactical team led by Wendy, the first hybrid synth infused with human consciousness. The show promises to explore themes of corporate espionage between Weyland-Yutani and its rivals, as well as the terrifying implications of a Xenomorph outbreak on our home world.

Lore Note: Helmed by Noah Hawley (Fargo, Legion), the series is expected to focus more on the human drama and class conflict sparked by the alien threat, rather than being a pure creature feature, offering a new perspective on the universe.

The Ripley Saga

AlienReleased: 1979

Timeline: 2122

Famously pitched as "Jaws in space," this film establishes the "truckers in space" aesthetic, focusing on the blue-collar crew of the towing vessel Nostromo. After investigating a distress signal on the moon LV-426, they unwittingly bring a deadly stowaway aboard. The film is a masterclass in claustrophobic horror, but its central theme is corporate indifference. The reveal of Special Order 937 - "Crew expendable" - shows that the true monster is not just the alien, but the company that sent them to die for a profit.

Lore Note: The "Space Jockey," the giant fossilized alien pilot discovered by the Nostromo crew, was a central mystery for decades until its species was identified as an "Engineer" in Prometheus.

Alien: RomulusReleased: 2024

Timeline: ~2142 (Between Alien and Aliens)

Set between the first two films, this story follows a group of young space colonizers scavenging a derelict Weyland-Yutani research station, the "Romulus." In their search for salvageable tech, they unleash the same terror that plagued the Nostromo. The film is a deliberate return to the franchise's horror roots, focusing on a new generation's terrifying first encounter with the Xenomorph in a tense, claustrophobic setting.

Lore Note: Director Fede Álvarez made a conscious effort to use practical effects, miniatures, and puppetry wherever possible to recapture the tangible, gritty aesthetic of the original 1979 film.

AliensReleased: 1986

Timeline: 2179

Rescued after 57 years in hypersleep, Ripley reluctantly returns to LV-426 as an advisor to a squad of overconfident Colonial Marines. Director James Cameron masterfully shifts the genre from horror to high-octane action, exploring themes of militarism and motherhood. The film's emotional core is the bond between the traumatized Ripley and the orphaned girl Newt, which culminates in a primal battle between two mothers—Ripley in her Power Loader and the colossal Alien Queen protecting her eggs.

Lore Note: The iconic M41A Pulse Rifle props were built using parts from a WWII-era M1A1 Thompson submachine gun and a Franchi SPAS-12 shotgun, giving them a realistic, functional weight and feel.

Alien 3Released: 1992

Timeline: 2179

This installment is a return to bleak, nihilistic horror. Ripley's escape pod crashes on Fiorina "Fury" 161, a desolate foundry and penal colony. Stripped of weapons and hope, Ripley must rally the cynical inmates to fight a new, faster Xenomorph. The film explores themes of faith and futility, culminating in the horrifying discovery that Ripley is carrying a Queen embryo, forcing her into an ultimate act of self-sacrifice to end the species.

Lore Note: The film's famously troubled production meant it began shooting without a finished script. A later "Assembly Cut" restored over 30 minutes of footage, creating a more coherent (and fan-preferred) version that better explores the religious and existential themes.

Alien: ResurrectionReleased: 1997

Timeline: 2379

Two hundred years after her death, military scientists clone Ripley to resurrect the Queen embryo inside her. The result, "Ripley 8," is a human-Xenomorph hybrid with terrifying new abilities. She teams with a crew of space pirates to escape the research station after the cloned aliens inevitably escape. The film has a unique tone of grotesque black comedy and explores themes of genetic corruption and corporate science run amok, culminating in a bizarre and tragic confrontation with the "Newborn" hybrid.

Lore Note: The screenplay was written by Joss Whedon, who would later direct The Avengers. He has since expressed his dissatisfaction with the final film, stating that the execution did not match his original vision for the script.

The Crossover Films

Alien vs. PredatorReleased: 2004

Timeline: 2004

Set in the present day, this film posits that Predators have been visiting Earth for centuries, using humans as hosts to breed Xenomorphs as part of a ritualistic hunt. A Weyland Corporation team discovers an ancient pyramid under the Antarctic ice and becomes trapped between the two warring species. The film serves as a fun "what if" scenario, merging two iconic sci-fi horror mythologies.

Lore Note: While a fun concept, this film and its sequel are not considered part of the official canon of the main "Alien" saga, as their timeline and lore (particularly that humanity knew of Xenomorphs in 2004) directly contradict the events of "Prometheus" and "Alien."

Aliens vs. Predator: RequiemReleased: 2007

Timeline: 2004

Picking up immediately after the first AVP, a Predator ship carrying a "Predalien" (a Xenomorph that gestated in a Predator) crashes near a small town in Colorado. A lone, veteran Predator is dispatched to hunt the terrifying new hybrid and clean up the resulting Xenomorph infestation before it consumes the entire town. Its tone is significantly darker and more violent than its predecessor.

Lore Note: The film was heavily criticized for its extremely dark lighting, which made many of the action sequences difficult to see. The directors defended this as an artistic choice to enhance the horror and chaos.

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About the author Jimmy Jangles


My name is Jimmy Jangles, the founder of The Astromech. I have always been fascinated by the world of science fiction, especially the Star Wars universe, and I created this website to share my love for it with fellow fans.

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