Xen (Half-Life)

The Half-Life video game series features many locations set in a dystopian future stemming from the events of the first game, Half-Life. These locations are used and referred to throughout the series. The locations, for the most part, are designed and modeled from real-world equivalent locations in Eastern Europe, but also include science fiction settings including the Black Mesa Research Facility, a labyrinthine subterranean research complex, and Xen, an alien dimension.

The Black Mesa Research Facility is the primary setting for Half-Life and its three expansions: Opposing Force, Blue Shift, and Decay. The base is a decommissioned ICBM launch complex at an undisclosed New Mexico desert location, which has been converted into a scientific research facility and bears a number of similarities to Los Alamos National Laboratory, Sandia National Laboratory and Area 51. Black Mesa is a distinctive landmark visible from NM502 a few miles outside Los Alamos. This facility is depicted as a vast series of underground research laboratories as well as surface constructions such as offices, chemical waste disposal plants, and personnel dormitories (even cafeterias, where Gordon Freeman can destroy Doctor Magnusson's microwave casserole), all powered by a hydroelectric dam and connected by an advanced tram system.

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