The various alien species found on Xen, military or wildlife, ally or enemy.

Xen (pronounced "zen" [3]) is the Borderworld, a plane of existence connecting two or more universes (which Xen can be referred to as). It was discovered by Black Mesa research …

Race X consists of many sub-species varying widely in size and shape. Their technology appears almost entirely biological in nature; notably, they use living weapons such as the insectoid …

The various alien races found on Xen, military or wildlife, friend or foe. Xen. Creatures. This category has the following 5 subcategories, out of 5 total. The following 48 pages are in this …

Race X [5] is a mysterious alien race appearing in the Black Mesa Research Facility late in the Black Mesa Incident, a few hours before Gordon Freeman teleports to Xen. They serve as one …

The Xen Creatures are the secondary antagonists of Valve Corporation 's Half-Life series. They are a collective of several extraterrestrial races, most from different dimensions, that have …

Race X is a mysterious collective of alien races believed to be from an alternate dimension. Their first (and only) encounter with the human race was during the late stages of the Black Mesa …

Colourful manta ray-like creatures glide gracefully through the skies of Xen. The Xen asteroids are home to a wide variety of different plant and animal species, forming a complex ecosystem.

2005年10月16日 · Headcrab - The Headcrab ranks among one of the most basic Xenian life forms. Small, parasitic aliens that scuttle along the floor at a slow speed. The Headcrab is a …

Ichthyosaurs are large fish-like life forms indigenous to Xen. They are extremely dangerous, and should be handled with caution, especially by those lacking HEV Hazard Suits. While they may …