Alien Lore: The Xenomorph Expanded Universe


The Alien lore section offers explanations, theories and listings for the Xenomorph species and the Alien universe in general, including the Expanded Universe of comics, books and games from several decades. Specific lore categories include the Alien Universe ships, Alien Universe weapons, Alien Universe androids, planets, and individual Xenomorph profiles. Recently, AvP Central merged with Alien Experience, to provide the ultimate Alien vs. Predator experience.

Bishop in the tunnel in Aliens

Bishop's Tunnel: Where's The Entrance & Exit?


In a memorable scene in Aliens, Bishop crawled through a pipe from Operations to close to the uplink tower. In this examination including maps, we explore where exactly in Hadley's Hope colony Bishop's escape tunnel's entrance and exit were.

By Janno Vares March 18, 2026   Alien Lore

A Xenomorph horde from Aliens: Defiance

Alien Quiz: Which Xenomorph Are You?


This Alien quiz matches your answers to a Xenomorph archetype based on how you approach risk, exploit the environment, and secure a kill. Answer these ten questions honestly and see what kind of Xenomorph you align with.

By Janno Vares February 03, 2026   Sci Fi Quizzes

The Trypanohyncha Ocellus from Alien: Earth

T. Ocellus: Anatomy Of Alien Earth's Eye Octopus


T. Ocellus (Trypanohyncha Ocellus) was a parasitic extraterrestrial life-form featured in Alien: Earth. This Eye Octopus was discovered aboard the USCSS Maginot and later unleashed chaos after the vessel crashed in Prodigy City on Earth.

By Janno Vares September 05, 2025   Alien Earth Lore

The Prometheus Forum header

Prometheus Forum: The Prometheus Fan Community


Prometheus Forum is a fan community dedicated to Ridley Scott's Prometheus series, including Alien: Covenant and Prometheus 3. Originally launched before the 2012 movie with scoops and rumors, the community joined AvP Central in 2025 as a home for Prometheus fans.

By Janno Vares June 01, 2025   Alien Lore

Xenomorph ranks hierarchy illustrated in Marvel comics showing a big group of Xenomorphs

Xenomorph Ranks Hierarchy: From Embryo To Queen Mother


The Xenomorph species follows a structured and evolving hierarchy. This article contains a breakdown of Xenomorph ranks from the lowest to the highest, describing the process of how a lone Xenomorph can rise through the ranks to become a leader.

By Janno Vares March 09, 2025   Alien Lore

Fiorina 161 From Space

Fiorina (Fury) 161: Full Guide To The Prison Planet


Fiorina Fury 161 from Alien 3 was a barren, windswept planetoid located in the Neroid Sector Fiori 16 System, situated within the Outer Veil. The planet, known for its harsh environment and bleak terrain, served as a penal colony for Weyland-Yutani Class C Work Correctional Unit.

By Janno Vares March 03, 2025   Alien Universe Planets

The Xenomorph tail on a promotional image for the first AvP movie

Xenomorph Tail: Length, Features, And Anatomy


The Xenomorph tail is one of the Alien most powerful weapons, capable of piercing, slashing, and constricting its prey. This article explores the length, anatomy, and unique features of the Xenomorph tail, as well as its tactical uses in combat, showing how integral it is to the species hunting prowess.

By Janno Vares February 26, 2025   Xenomorph Appearance

The Xenomorph Dorsal tubes on a Giger painting

Xenomorph Dorsal Tubes: What Are They Used For?


The Xenomorph is known for its exotic dorsal tubes, which are one of the most distinctive features of its anatomy. This guide explores the possible functions and significance of the Xenomorph dorsal tubes, providing insight into their biological role and their impact on the creature behavior and physiology.

By Janno Vares January 16, 2025   Xenomorph Behavior | Xenomorph Appearance

The Gateway Station from Aliens

Gateway Station: Full History And Hidden Details


Gateway Station was a massive geosynchronous space station orbiting Earth in the late 22nd century. It played a critical role in interstellar commerce and colonization. Known for its utilitarian design and bustling activity, it served as a hub for trade, military operations, and housing.

By Janno Vares January 12, 2025   Alien Universe Space Stations

Private William Hudson from Aliens

Hudson's "Game Over" Might Have a Hidden Meaning


Private Hudson Game Over Man line from Aliens is the most well-known quote from the movie and probably the entire Alien series. In this article, find out the secondary meaning behind the line, and behind the scenes information how the quote was created.

By Janno Vares January 06, 2025   Colonial Marine Lore

Alien Homeworld from Aliens: Harvest

Xenomorph Prime: A Guide To The Alien Homeworld


Xenomorph Prime is the elusive Alien Homeworld which has been shown little in the Alien games and comic books. Both humans and Predators have ventured there on different missions. Here is a list of notable occurrences of Xenomorph Prime throughout the Expanded Universe.

By Janno Vares November 24, 2024   Alien Universe Planets

The Poster for Alien: Romulus

Best Alien Movies: Ranking From Alien To Alien: Romulus


Across nine films the Alien series has delivered a mix of groundbreaking moments and divisive experiments. With Romulus marking a new chapter in this iconic saga, we rank every Alien film from worst to best, exploring how each has left its mark on this 45-year journey.

By Janno Vares November 20, 2024   Alien Lore

Stompy from Alien: Isolation

Deadliest Xenomorphs: Ranking Of Alien Warriors


Not all Xenomorphs are created equal. In this article, we dive into the top 10 deadliest Xenomorphs from movies, comics, and video games, ranking them based on their intelligence, kill count, toughness, and ability to survive against incredible odds.

By Janno Vares November 19, 2024   Individual Xenomorphs

LV-426 from space

LV-426: Full Travel Guide To Acheron Locations


LV-426, also known as Acheron, is one of three moons orbiting the gas giant Calpamos in the Zeta Reticuli system. Despite its inhospitable conditions, LV-426 has become a significant location due to its connection with the Xenomorph species and the events surrounding the ill-fated Weyland-Yutani expeditions.

By Janno Vares May 20, 2024   Alien Universe Planets

The Xenomorph from Alien Romulus

Alien: Romulus Xenomorphs Listed And Explained


As per tradition in the Alien movie series, Alien Romulus introduces a new Xenomorph type aboard the Renaissance station. In this article, find out everything we know about this Xenomorph, including its possible alternate life cycle and visual differences from traditional Xenomorphs.

By Janno Vares May 07, 2024   Xenomorphs From The Movies

The logo for Weyland-Yutani

Weyland-Yutani Explained: Full History Of The Company


The Weyland-Yutani Corporation, often referred to as The Company, represents one of the most iconic symbols in science fiction cinema. In this article, we explore the history of Weyland-Yutani, including several corporate acquisitions, mergers, the company downfall, and a final resurgence.

By Janno Vares February 05, 2024   Alien Universe Companies

Xenomorph swimming in Alien: Resurrection

Swimming Xenomorph: Can Aliens Survive Underwater?


The Xenomorphs have proven themselves to be well adapted to extreme environments, including underwater. Some Xenomorph types are adept swimmers and can easily navigate in aquatic conditions. Find out here, which Xenomorphs have aquatic abilities and how long can they survive underwater.

By Janno Vares January 28, 2024   Xenomorph Behavior

Concept art for eggmorphing by H.R. Giger

Xenomorph Eggmorphing: From Cocoon To Egg


Eggmorphing is a process of turning human hosts into Alien eggs and a part of the Xenomorph alternate life cycle. Initially cut from the first Alien movie, but re-inserted in the Directors Cut, eggmorphing is used by Xenomorph Warriors when an Alien Queen is not available to produce more eggs.

By Janno Vares January 26, 2024   Xenomorph Behavior

The closeup of a Xenomorph mouth

Xenomorph Mouth: A Guide To Alien Teeth And Jaws


The Xenomorph is known for its iconic mouth designed by H.R. Giger, featuring the terrifying inner jaw. This guide explores the intricate details of the Xenomorph jaws and teeth, providing insight into their biological functions and their role in the creature predatory behavior.

By Janno Vares January 22, 2024   Xenomorph Appearance

A Xenomorph from Aliens: Definance

Xenomorph Motivations: What Do The Xenomorphs Want?


The Xenomorphs are known for somewhat conflicting motivations, shifting from causing a killing spree in one movie to capturing potential hosts in another. In this article, we try to find out what the Xenomorph really wants and what drives its actions.

By Janno Vares January 12, 2024   Xenomorph Behavior

The Nostromo Xenomorph hiding in the shuttle in Alien

Xenomorph Lifespan: How Long Do Xenomorphs Live?


This article delves into a pivotal question: What is the Xenomorph life expectancy? By examining each distinct type within the Xenomorph hierarchy - from the initial egg stage to the adult forms, including the rare Alien Queen - we aim to shed light on the longevity of these alien entities.

By Janno Vares January 10, 2024   Xenomorph Behavior

Xenomorph preparing to eat

Xenomorph Eating Habits: What Do Xenomorphs Eat?


One question that has intrigued Alien fans has repeatedly been: Do The Xenomorphs Eat? While these creatures are often seen as relentless creatures that grow at fantastic speeds, there is much more to their nutritional intake than meets the eye.

By Janno Vares January 05, 2024   Xenomorph Behavior

A Xenomorph being mind controlled in concept art for Alien 5

Taming A Xenomorph: Can Xenomorphs Become Friendly?


The Xenomorphs are typically portrayed as hostile and lethal, attacking anyone in sight. This article examines different methods that might enable humans to interact safely with Xenomorphs or even alter their aggressive nature to be tame and friendly.

By Janno Vares January 03, 2024   Xenomorph Behavior

The cover of Alien: The Cold Forge

The Meaning of Xenomorph: Alien Species Names Explained


Over the years, the Xenomorph has been known by various names, each adding layers to its mystique and terror. This article delves into the significance and origins of these names, shedding light on how they contribute to the lore of this legendary extraterrestrial organism.

By Janno Vares January 01, 2024   Alien Lore

An Alien Egg Inside Sulaco from Alien 3

Alien Egg On Sulaco: All Theories For The Alien 3 Mystery


The existence of the Xenomorph egg on the USS Sulaco at the beginning of Alien 3 is one of the biggest mysteries of the Alien franchise. In this article, we take a look at most of the theories surrounding the egg, including plausible ones and others completely outlandish.

By Janno Vares May 10, 2023   Alien Lore

The Crocodile Xenomorph - A Big Xenomorph

Biggest Xenomorphs: Alien Size Comparison


The Xenomorphs come in many forms and sizes, often depending on the type of the host. Here is a list of Xenomorphs ranked by their physical size, including several Xenomorphs from the Expanded Universe like the Alien King and Crocodile Alien.

By Janno Vares April 13, 2023   Xenomorph Appearance

Fire is the main Xenomorph Weakness

Xenomorph Weaknesses: How To Kill An Alien


With their unique physiology and highly adaptable nature, Xenomorphs have proven to be formidable foes for many space-faring explorers and soldiers. However, despite being called the Perfect Organism, they also have several weaknesses that can be exploited by their enemies.

By Janno Vares April 02, 2023   Xenomorph Behavior

Colonial Marines from the USS Sulaco

Colonial Marine Teams: List Of All USCM Units


The Colonial Marines use small and mobile units to protect the colonies. These units are the maximum size of a battalion, but usually only a few squads are sent into action. Here is an overview of different Colonial Marine teams, including the one commanded by Lieutenant Gorman in Aliens.

By Janno Vares May 04, 2021   Colonial Marine Lore

A facehugger removal in process

Facehugger Removal: Before And After Embryo Implantation


In addition to the question of chestburster removal possibilities, the matter of facehuggers being removed before embryo implantation has been intriguing from the first movie. Here is a list of notable facehugger removals, including both successful and unsuccessful attempts.

By Janno Vares March 25, 2021   Xenomorph Behavior

The LV-426 Hive

Top 10 Largest Alien Hives


The Alien hives are the birthplaces of the Xenomorphs and serve as their homes when not hunting for new victims. The hives come in different shapes and sizes and some can span over vast regions of a planet. Here is an overview of notable Xenomorph hives from the series.

By Janno Vares March 22, 2021   Alien Lore

A Chestburster removal

Chestburster Removal: Embryo Extractions And Failures


The question of if it is possible to remove a chestburster before it is born has been in the series from the start. Throughout the movies and the expanded lore, there have been several successful chestburster extractions, although each have their own peculiarities.

By Janno Vares February 19, 2021   Xenomorph Behavior

A Xenomorph with eye sockets

Xenomorph Vision: Seeing Without Eyes


Although the creature in Alien had eye sockets under the transparent dome, the most common Xenomorphs don't have eyes. The Alien sequels and games have given us a glimpse of the vision of the Xenomorphs, including the fisheye lens view and seeing the aura of their enemies.

By Janno Vares December 23, 2020   Xenomorph Behavior | Xenomorph Appearance

The Weyland-Yutani logo

Greedy Mega-Corporations: Competitors Of Weyland-Yutani


The mega-corporations have a big influence over the surveyed worlds in the Alien vs. Predator universe. They are often in an open rivalry between themselves and other world governments. Here is a list of the biggest mega-corporations, including companies like Seegson, the Grant Corporation and Weyland-Yutani.

By Janno Vares August 08, 2019   Alien Universe Companies

Aliens: Stronghold

Top 10 Mad Scientists Who Researched Xenomorphs


The Alien vs Predator series has its fair share of mad scientists. Here are listed the top 10 best ones. The entries are ranked by an elaborate algorithm based on their level of madness, charisma, the impact of their research and the quality of the source material.

By Janno Vares November 14, 2017   Alien Universe Characters