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Half-Life

 
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Half-Life



 
 
Half-Life is a science fiction
Science fiction

Science fiction is a broad genre of fiction that often involves speculations based on current or future science or technology. Science fiction is found in books, art, television, films, games, theatre, and other media....
 first-person shooter
First-person shooter

File:Freedoom aaa.pngFirst-person shooter is a Video game genres, featuring a First person , with which the player views the action as if through the eyes of the protagonist and in which the primary element is combat based around shooting....
 video game developed by Valve Software
Valve Corporation

Valve Corporation is an United States video game developer company based in Bellevue, Washington, USA that was founded in 1996, and made famous by its first product, Half-Life , which was released in November 1998....
 and the company's debut product. First released by Sierra Studios
Sierra Entertainment

Sierra Entertainment, Inc. was a Worldwide American video game developer and video game publisher founded in 1979 as On-Line Systems by Ken Williams and Roberta Williams....
 on November 19, 1998, the game was also released for the PlayStation 2
PlayStation 2

The PlayStation 2 is a History of video game consoles video game console manufactured by Sony. The successor to the PlayStation, and the predecessor to the PlayStation 3, the PlayStation 2 forms part of the PlayStation of video game consoles....
 on November 14, 2001. Valve, set up by former Microsoft
Microsoft

Microsoft Corporation is a multinational corporation computer technology corporation that develops, manufactures, licenses, and supports a wide range of computer software products for computing devices....
 employees, had difficulty finding a publisher, with many believing that the game was "too ambitious". Sierra On-Line eventually signed the game after expressing interest in making a 3D action game.






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Quotations


((Surface Tension level) draws gun) STAND BACK! (sees that its Gordon Freeman) Oh, it's you. (holsters his pistol)

(Acceptance of Employment) Wisely done, Mr. Freeman! I will see you up ahead.

(before the accident, when talked to) Please, leave me alone until after the experiment.

(Opposing Force) If we make it out of here alive, I'm going to buy you all a round of beer. Hell, I'll buy the whole damn bar!

(Opposing Force) This mission is way beyond Fubar.

(Opposing Force) This place makes boot camp seem like Disney Land.






Encyclopedia


Half-Life is a science fiction
Science fiction

Science fiction is a broad genre of fiction that often involves speculations based on current or future science or technology. Science fiction is found in books, art, television, films, games, theatre, and other media....
 first-person shooter
First-person shooter

File:Freedoom aaa.pngFirst-person shooter is a Video game genres, featuring a First person , with which the player views the action as if through the eyes of the protagonist and in which the primary element is combat based around shooting....
 video game developed by Valve Software
Valve Corporation

Valve Corporation is an United States video game developer company based in Bellevue, Washington, USA that was founded in 1996, and made famous by its first product, Half-Life , which was released in November 1998....
 and the company's debut product. First released by Sierra Studios
Sierra Entertainment

Sierra Entertainment, Inc. was a Worldwide American video game developer and video game publisher founded in 1979 as On-Line Systems by Ken Williams and Roberta Williams....
 on November 19, 1998, the game was also released for the PlayStation 2
PlayStation 2

The PlayStation 2 is a History of video game consoles video game console manufactured by Sony. The successor to the PlayStation, and the predecessor to the PlayStation 3, the PlayStation 2 forms part of the PlayStation of video game consoles....
 on November 14, 2001. Valve, set up by former Microsoft
Microsoft

Microsoft Corporation is a multinational corporation computer technology corporation that develops, manufactures, licenses, and supports a wide range of computer software products for computing devices....
 employees, had difficulty finding a publisher, with many believing that the game was "too ambitious". Sierra On-Line eventually signed the game after expressing interest in making a 3D action game. The game had its first major public appearance at the 1997 Electronic Entertainment Expo. Designed for Microsoft Windows
Microsoft Windows

Microsoft Windows is a series of software operating systems and graphical user interfaces produced by Microsoft. Microsoft first introduced an operating environment named Windows in November 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces ....
, the game uses a heavily modified version of the Quake engine
Quake engine

The Quake engine is the game engine that was written to power 1996's Quake, written by id Software. It featured true 3D real-time rendering and is now licensed under the terms of the GNU General Public License ....
, called GoldSrc
GoldSrc

GoldSrc, or Goldsource, is the retronym used internally by Valve Corporation to refer to the modified Quake engine that powers their science fiction first-person shooter Half-Life ....
.

In Half-Life, players assume the role of Dr. Gordon Freeman
Gordon Freeman

Gordon Freeman is a fictional character, the main protagonist of the Half-Life video game series.A theoretical physicist working at the Black Mesa Research Facility, Gordon is involved in an experiment which accidentally opens an interdimensional portal, releasing confused, hostile beings into the complex....
, a recent graduate theoretical physicist
Theoretical physics

Theoretical physics employs mathematical models and abstractions of physics in an attempt to explain experimental data taken of the natural world....
 who must fight his way out of a secret underground research facility, whose research and experiments into teleportation
Teleportation

Teleportation is the transfer of matter from one place to another, more or less instantaneously, either by paranormal means or through technological artifice....
 technology have gone wrong.

On its release, critics hailed its overall presentation and numerous scripted sequence
Scripted sequence

In video games, a scripted sequence is a pre-defined series of events that occurs when triggered by player location or actions.Some scripted sequences are merely used to play short cut scenes which the player has little control of....
s, and it won over 51 PC Game of the Year
Game of the Year

Game of the Year is a distinction awarded by various magazines and websites to a deserving Personal computer game or Console game video game. Many publications will award a single "Game of the Year" to a single title that they feel represents the pinnacle of gaming achievement that year, as well as smaller awards ....
 awards. Its gameplay influenced first-person shooters for years to come, and it has since been regarded as one of the greatest games of all time. As of November 16, 2004, Half-Life has sold eight million copies. As of July 14, 2006, the Half-Life franchise has sold over 20 million units. According to GameSpy
GameSpy

GameSpy, also known as GameSpy Industries, is a division of IGN Entertainment, which operates a network of game websites and provides online video game-related services and software....
, Half-Life is the most played online PC game (excluding MMORPGs), ahead of Half-Life 2
Half-Life 2

Half-Life 2 is a science fiction first-person shooter Video game and the sequel to the highly acclaimed Half-Life . It was developed by Valve Corporation and was released on November 16, 2004, following a protracted five-year, $40 million development cycle during which the game?s source code was leaked to the Internet....
. In celebration of the game's 10th anniversary, Valve lowered the price of Half-Life to US$0.98 on November 19, 2008 for three days.

Gameplay

Halflife Ingame
Half-Life, a first-person shooter
First-person shooter

File:Freedoom aaa.pngFirst-person shooter is a Video game genres, featuring a First person , with which the player views the action as if through the eyes of the protagonist and in which the primary element is combat based around shooting....
, requires the player to perform combat tasks and puzzle solving to advance through the game. Unlike its peers at the time, Half-Life used scripted sequence
Scripted sequence

In video games, a scripted sequence is a pre-defined series of events that occurs when triggered by player location or actions.Some scripted sequences are merely used to play short cut scenes which the player has little control of....
s, which ranged from small events, such as an alien ramming down a door, to major plot points. While most contemporary first-person shooters relied on cut scene
Cut scene

A cut scene is a sequence in a video game over which the video game player has little or no control, often breaking up the gameplay and used to advance the plot, present character development, and provide background information, atmosphere, dialogue and clues....
 intermissions to detail their plotlines, Half-Life's story is put forth entirely through scripted sequences, keeping the player in control of their first-person viewpoint
First person (video games)

In video games, first person refers to a perspective rendered from the viewpoint of the player character. In many cases, this may be the viewpoint from the cockpit of a vehicle....
. In line with this, the game has no cutscenes, and the player rarely loses the ability to control Gordon, who never speaks and is never actually seen in the game; the player "sees" through his eyes for the entire length of the game. Half-Life has no "levels
Level (computer and video games)

In video games, a level is a discrete subdivision of a video game's virtual world or set of challenges.Each level almost always has an associated objective, which may be as simple as walking from point A to point B, though the objective can be far more elaborate than that....
"; it instead divides the game by chapters, whose titles flash on the screen. Progress through the world is continuous, except for breaks for loading.

The game regularly integrates puzzles, such as navigating a maze of conveyor belts. Some puzzles involve using the environment to kill an enemy. There are few "bosses
Boss (video games)

A boss is a computer-controlled opponent which is found in video games. Their purpose is to test the skills that the player has accumulated over the course of a game....
" in the conventional sense, where the player defeats a superior opponent by direct confrontation. Instead, such monsters occasionally define chapters, and the player is generally expected to use the terrain, rather than firepower, to kill the "boss". Late in the game, the player receives a "long jump module" for the HEV suit
Gordon Freeman

Gordon Freeman is a fictional character, the main protagonist of the Half-Life video game series.A theoretical physicist working at the Black Mesa Research Facility, Gordon is involved in an experiment which accidentally opens an interdimensional portal, releasing confused, hostile beings into the complex....
, which allows the player to increase the horizontal distance and speed of jumps by crouching before jumping. This is used for platformer
Platform game

Platform game, or platformer, is a computer and video game genres characterized by jumping puzzle or over obstacles. It must be possible to control these jumps and to fall from platforms or miss jumps....
-style jumping puzzle
Jumping puzzle

Jumping puzzles or "platform sequences" are sequences of obstacles in computer and video games, particularly in the genre of platform games, where the player character is required to use jumping to proceed, often in a manner that requires precise timing or landing in an exact manner....
s in the later portion of the game.

For the most part the player battles through the game alone, but is occasionally assisted by non-player character
Non-player character

A non-player character, often shortened to NPC, is a fictional character that is controlled by the gamemaster in role-playing games. When this definition extends to video games, an NPC in a video game is usually part of the computer program, and not controlled by a human....
s; specifically security guards and scientists who fight alongside the player, assist in reaching new areas and impart relevant plot information. A wide array of enemies populate the game including alien life-forms such as headcrab
Headcrab

A headcrab is a fictional extraterrestrial life parasitoid found in the Half-Life video game series created by Valve Software. They are the most numerous and arguably most iconic aliens in the series....
s, bullsquids, headcrab zombies
Headcrab

A headcrab is a fictional extraterrestrial life parasitoid found in the Half-Life video game series created by Valve Software. They are the most numerous and arguably most iconic aliens in the series....
 and Vortigaunt
Vortigaunt

Vortigaunts are a fictional Extraterrestrial life race in the Half-Life by Valve Corporation. In Half-Life and its three expansions, Vortigaunts are frequently encountered by the player as hostile non-player characters....
s. The player also faces human opponents, in particular Hazardous Environment Combat Unit (HECU) Marines and black ops assassins who are dispatched to contain the alien threat and silence all witnesses.

Half-Life has a large array of weapons the player can use. The iconic weapon of the game is the trademark crowbar which can be used for melee fighting as well as a tool for clearing obstructions and breaking apart boxes and crates, which often contain useful items. The game also features numerous conventional weapons, such as the Glock 17
Glock pistol

Glock is the name of a family of pistols designed and produced by the Austrian company Glock of Deutsch-Wagram, founded in 1963 by engineer Gaston Glock to manufacture high-strength synthetic and steel components....
 pistol, SPAS-12
Franchi SPAS-12

The SPAS-12 is a combat shotgun manufactured by the Italy company Franchi...
 shotgun
Shotgun

A shotgun is a firearm that is usually designed to be fired from the shoulder, which uses the energy of a fixed shell to fire a number of small spherical pellets called lead shot, or a solid projectile called a shotgun slug....
, MP5
Heckler & Koch MP5

The MP5 is a 9x19mm Parabellum submachine gun of Germany design, developed in the 1960s by a team of engineers from the West Germany arms manufacturer Heckler & Koch of Oberndorf am Neckar....
 submachine gun
Submachine gun

A submachine gun is a firearm that combines the automatic firearm of a machine gun with the cartridge of a pistol, and is usually between the two in weight and size....
 with an attached grenade launcher, Colt Python
Colt Python

The Colt Python is a .357 Magnum caliber revolver manufactured by Colt's Manufacturing Company of Hartford, Connecticut, Connecticut. The Colt Python is considered to be a premium United States revolver....
 .357 Magnum
.357 Magnum

The .357 S&W Magnum, or simply .357 Magnum, is a revolver Cartridge created by Elmer Keith, Phillip B. Sharpe, Colonel D. B. Wesson of firearms manufacturer Smith & Wesson, and Winchester....
 revolver
Revolver

A revolver is a repeating firearm that has a Cylinder containing multiple Chamber and at least one Gun barrel for firing. As the user cocks the hammer , the cylinder revolves to align the next chamber and round with the hammer and barrel, which gives this type of firearm its name....
, and rocket launcher
Shoulder-launched missile weapon

A shoulder-launched missile weapon is a weapon that fires a projectile at a targeting , yet is small enough to be carried by a single person, and fired while held on one's shoulder....
 as well as abnormal weapons ranging from a crossbow
Crossbow

A crossbow is a weapon consisting of a Bow mounted on a stock that shoots projectiles, often called bolts. The medieval crossbow was called by many names, most of which derived from the word Ballista, a siege engine resembling a crossbow in mechanism and appearance....
 to alien weapons such as Snarks. Two experimental weapons, the tau cannon
Coilgun

A coilgun is a type of synchronous linear electric motor which is used as a projectile accelerator that consists of one or more electromagnet....
 and the gluon gun, are built by the scientists in the facility and are acquired by the player late in the game. With the installation of the High Definition Pack, the weapons' appearances are substantially updated, mainly due to a larger number of polygons in the models. Although their appearances have changed, they perform exactly the same as their original counterparts in terms of gameplay. The Glock 17 and MP5 are the only two weapons to be completely changed in appearance, being replaced by the Beretta M9 and M4A1 assault rifle
M4 Carbine

The M4 Carbine is a family of firearms tracing its lineage back to earlier carbine versions of the M16 rifle, all based on the original AR-15 made by ArmaLite....
 respectively.

Synopsis


Setting


Most of the game is set in a remote desert
Désert

?D?sert? is ?milie Simon's debut single, released in October 2002. The song was a huge success both critically and commercially in her homeland....
 area of New Mexico
New Mexico

New Mexico is a U. S. State located in the Southwestern United States of the United States. Inhabited by Native Americans in the United States populations for many centuries, it has also has been part of the Spanish Empire viceroyalty of New Spain, part of Mexico, and a U.S....
 in the Black Mesa Research Facility, a fictional complex that bears many similarities to both the Los Alamos National Laboratory
Los Alamos National Laboratory

Los Alamos National Laboratory is a United States Department of Energy United States Department of Energy National Labs, managed and operated by Los Alamos National Security, LLC , located in Los Alamos, New Mexico....
 and Area 51
Area 51

Area 51 is a nickname for a military base located in the southern portion of Nevada in the western United States . Situated at its center, on the southern shore of Groom Lake, is a large secretive military airfield....
, between the years 2000 and 2009. The game's protagonist is the theoretical physicist
Theoretical physics

Theoretical physics employs mathematical models and abstractions of physics in an attempt to explain experimental data taken of the natural world....
 Gordon Freeman
Gordon Freeman

Gordon Freeman is a fictional character, the main protagonist of the Half-Life video game series.A theoretical physicist working at the Black Mesa Research Facility, Gordon is involved in an experiment which accidentally opens an interdimensional portal, releasing confused, hostile beings into the complex....
, a graduate of the Institute for Experimental Physics and the University of Innsbruck, in Innsbruck, Austria, and Doctor of Philosophy in theoretical physics via MIT. Freeman becomes one of the survivors of an experiment at Black Mesa that goes horribly wrong, when an unexpected "resonance cascade" – a fictitious phenomenon – rips dimension
Dimension

In mathematics, the dimension of a space is roughly defined as the minimum number of coordinates needed to specify every point within it. For example: a point on the unit circle in the plane can be specified by two Cartesian coordinates but one can make do with a single coordinate , so the circle is 1-dimensional even though it exists in...
al seams, devastating the facility. Aliens
Extraterrestrial life

Extraterrestrial life is defined as life which does not originate from Earth. It is the subject of astrobiology and its existence remains hypothetical, because there is no credible evidence of extraterrestrial life which has been generally accepted by the mainstream scientific community....
 from another world—known as Xen—subsequently enter the facility through these dimensional seams (an event known as the "Black Mesa incident").

As Freeman tries to make his way out of the ruined facility to find help for the injured, he soon discovers that he is caught between two sides: the hostile aliens and the Hazardous Environment Combat Unit, a United States Marine Corps
United States Marine Corps

The United States Marine Corps is a branch of the United States Armed Forces responsible for providing Military power projection from the sea, using the mobility of the United States Navy to rapidly deliver Marine Air-Ground Task Force....
 Special Forces
United States Special Operations Forces

United States Special Operations Forces are active and reserve component forces of U.S. Military. They are designated by the United States Secretary of Defense, and are specifically trained to conduct operations in an area under enemy or unfriendly control or politically sensitive environments to achieve military, diplomatic, informational, a...
 division dispatched to cover up the incident by eliminating the aliens, as well as Dr. Freeman and the other surviving Black Mesa personnel. Throughout the game, a mysterious figure known (but not actually referred to in-game) as "G-Man
G-Man (Half-Life)

The G-Man, voiced by Michael Shapiro , is a mysterious recurring character in the Half-Life series of first-person shooter Video game. He is known to display peculiar behavior and posthuman, and his identity and motives remain almost completely unexplained....
" regularly appears, and seems to be monitoring Freeman's progress. Ultimately, Freeman uses the cooperation of surviving scientists and security officers to work his way towards the mysterious "Lambda Complex" of Black Mesa (signified with the Greek "?
Lambda

Lambda is the 11th letter of the Greek alphabet. In the system of Greek numerals it has a value of 30. It was derived from the Phoenician alphabet Lamed ....
" character), where a team of survivors teleport him to the alien world Xen to kill the Nihilanth, the creature keeping Xen's side of the dimensional rift open.

The game's plot was originally inspired by the video games Doom, Quake
Quake

Quake is a first-person shooter computer game that was released by id Software on June 22, 1996. It was the first game in the popular Quake of computer and video games....
 (both PC games
Personal computer game

A personal computer game is a game played on a personal computer, rather than on a video game console or arcade machine. Computer games have evolved from the simple graphics and gameplay of early titles like Spacewar!, to a wide range of more visually advanced titles....
 produced by id Software
Id Software

id Software is an American video game developer from Mesquite, Texas. The company was founded in 1991 by four members of the computer company Softdisk: game programmer John D....
), and Resident Evil
Resident Evil (video game)

Resident Evil, known in Japan as , is a survival horror video game by Capcom. The inaugural title and first installment in the Resident Evil , it was originally released in 1996 for the PlayStation and has subsequently been ported to the Sega Saturn and IBM compatible PC....
 (game published by Capcom
Capcom

is a leading international video game developer and video game publisher of video games headquartered in Osaka, Japan. It was founded in 1979 as Japan Capsule Computers, a company devoted to the manufacturing and distribution of electronic game machines....
), Stephen King
Stephen King

Stephen Edwin King is an United States author of contemporary horror fiction, fantasy fiction and science fiction.Having sold an estimated List of bestselling fiction authors of his books, King is best known for his work in horror fiction, in which he demonstrates a thorough knowledge of the genre's history....
's short story
Short story

The short story refers to a work of fiction that is usually written in prose, usually in narrative format. This format or medium tends to be more pointed than longer works of fiction, such as novellas and novels or books....
/novella
Novella

A novella is a writing, fictional, prose narrative longer than a novelette but shorter than a novel. While there is disagreement as to what length defines a novella, the Science Fiction and Fantasy Writers of America Nebula Awards for science fiction define the novella as having a word count between 17,500 and 40,000....
 The Mist
The Mist

"The Mist" is a horror fiction novella by the American author Stephen King, in which the small town of Bridgton , Maine, Maine is suddenly enveloped in an unnatural mist that conceals otherworldly monsters....
, and an episode of The Outer Limits
The Outer Limits

The Outer Limits is an United States television series. Similar in style to the earlier The Twilight Zone , with more science fiction than fantasy stories, The Outer Limits is an anthology of discrete story episodes, sometimes with a plot twist at the end....
 called "The Borderland." It was later developed by Valve's in-house writer and author, Marc Laidlaw
Marc Laidlaw

Marc Laidlaw is an United States writer of science fiction and horror fiction and also a computer game designer with Valve Software. He is perhaps most famous for writing Dad's Nuke and The 37th Mandala, and for working on the popular Half-Life ....
, who wrote the books Dad's Nuke
Dad's Nuke

Dad's Nuke is a science fiction dark comedy novel written by Marc Laidlaw. It is a parody of middle class suburban life, and tells the tale of a nuclear family in the post-nuclear age....
 and The 37th Mandala
The 37th Mandala

The 37th Mandala is a horror fiction novel written by Marc Laidlaw and published in 1996. It tells the story of New Age writer Derek Crowe who uses an ancient mystical text as the basis of one works....
.

Plot

Resonance Cascade Ayool
Gordon Freeman rides a train from his dormitory deep into the heart of the Black Mesa Facility, on his way to the Anomalous Materials Lab to begin his work. Gordon arrives at the lab and has the front door opened by a security guard. Inside, Freeman learns that a computer systems failure has complicated communications between the Black Mesa scientists and that he must acquire his Hazardous Environment suit
Gordon Freeman

Gordon Freeman is a fictional character, the main protagonist of the Half-Life video game series.A theoretical physicist working at the Black Mesa Research Facility, Gordon is involved in an experiment which accidentally opens an interdimensional portal, releasing confused, hostile beings into the complex....
 (or H.E.V suit) before proceeding to the test chamber, where he is to assist the more senior scientists with an experiment. Freeman reports to the Anomalous Materials Lab, where he is tasked with pushing a "specimen"(a Xen crystal) into the scanning beam for analysis. Following that, he inadvertently causes a time-space catastrophe called a "resonance cascade," opening a portal between Earth and a bizarre world called Xen. Freeman is sporadically teleported there and catches glimpses of various alien life-forms, including a circle of Vortigaunts, shortly before blacking out.

Freeman awakens in the ruins of the Anomalous Materials lab and stumbles through the wreckage, strewn with the bodies of scientists and security personnel. After discovering survivors, Freeman learns communications with the outside world are down, and decides to gradually make his way to the surface for help, in the process sidestepping Black Mesa's structural damage and defending himself against hostile aliens randomly teleporting in from Xen. The survivors, including Eli Vance
Eli Vance

Doctor Eli Vance is a fictional character from the Half-Life 2 series of computer games by Valve Software. Vance, a brilliant physicist and researcher, is in his early sixties with short grey hair, a beard and mustache....
, initially claim that a rescue team will be arriving shortly, only to discover that the Hazardous Environment Combat Unit, which has taken control of Black Mesa, is killing both the aliens and the employees there as part of a government cover-up. Freeman fights the Marines before finally reaching the surface of Black Mesa, where he learns that the secretive Lambda Team may have the means to solve the problems brought on by the cascade. Gordon must then reach the Lambda Complex at the other end of the facility to assist them.

The player is subsequently faced with several tasks, such as killing a giant, rapidly growing tentacle creature, riding across the facility on a railway system in order to reach a satellite rocket that must be launched in order to reverse the resonance cascade and fighting a group of mysterious Black Ops soldiers, before being captured by Marines and dumped in a garbage compactor. Gordon escapes without being crushed and makes his way to an older, secret part of the Facility where he discovers an extensive collection of specimens collected from Xen long before the resonance cascade.

Gordon again reaches the surface, which has become a warzone. The Vortigaunt
Vortigaunt

Vortigaunts are a fictional Extraterrestrial life race in the Half-Life by Valve Corporation. In Half-Life and its three expansions, Vortigaunts are frequently encountered by the player as hostile non-player characters....
s, supported by other alien soldiers, have begun fighting the Marines, who are beginning to lose. They call in reinforcements, but it is not enough to turn the tide. The player must scale cliffs and navigate bombed out buildings while avoiding both sides. Finally, Gordon reaches relative safety underground.

The Marines begin to evacuate Black Mesa and airstrike
Airstrike

An airstrike is a military strike by air forces on either a suspected or a confirmed enemy ground position. Airstrikes are commonly delivered from aircraft such as bombers, ground attack aircraft, strike fighters, and helicopters....
s begin. At one point, the player must use the military equipment to call an air strike to re-enter the base. Gordon navigates underground water channels and tries to avoid scores of alien soldiers as they pick off remaining Marine stragglers. After much struggle, Gordon finally reaches the Lambda Complex, which is revealed to be the location where scientists developed the teleportation technology that allowed them to travel to Xen in the first place. Gordon reaches the handful of surviving personnel, who are held up in a small stronghold, and discovers that the satellite he launched failed to reverse the effects of the resonance cascade because an immensely powerful being on the other side of the rift is keeping it open. Gordon must kill this being to prevent the Xen aliens from taking over completely. The scientists activate the teleporter and Gordon is relocated to Xen.
Xen Halflife 01 Ayool
On the strange border world, Gordon encounters many of the alien species that had been brought into Black Mesa, as well as the remains of HEV-wearing researchers that came before him. The player engages in one of the game's few boss
Boss (video games)

A boss is a computer-controlled opponent which is found in video games. Their purpose is to test the skills that the player has accumulated over the course of a game....
-style battles against Gonarch, a giant headcrab with a huge egg sac
Spider

Spiders are air-breathing chelicerate arthropods that have eight legs, and chelicerae modified into fangs that inject venom. In their bodies the usual arthropod segments are fused into two Tagma , the cephalothorax and abdomen, joined by a small, cylindrical pedicel....
. After fighting his way through an alien camp, Gordon arrives at a huge alien factory complex, which engineers and builds the Alien Grunt soldiers. After fighting his way through mysterious levitating creatures, he finds a giant portal and enters it.

In a vast cave, Gordon finally confronts the Nihilanth, the creature who was maintaining the rift, and destroys it. As the creature dies, it explodes in a giant green blast that overpowers Gordon's senses. Gordon awakens unarmed in the presence of the G-Man
G-Man (Half-Life)

The G-Man, voiced by Michael Shapiro , is a mysterious recurring character in the Half-Life series of first-person shooter Video game. He is known to display peculiar behavior and posthuman, and his identity and motives remain almost completely unexplained....
. Both are transported to various locales around Xen, while the G-Man praises Freeman's actions in the border world. The G-Man explains that his "employers", believing that Gordon has "limitless potential", have authorized him to offer Freeman a job. The final teleportation takes the player to the original tram car, which is depicted as flying through space. After stepping into a portal, he finds himself floating in nothingness and hears the G-Man's voice one last time: "Wisely done, Mr. Freeman. I will see you up ahead." At this point it says "Subject: Freeman. Status: Hired. Awaiting assignment."

Development

Half-Life was the first product of Kirkland
Kirkland, Washington

Kirkland is a city in King County, Washington, Washington, United States. It is a suburb of Seattle, Washington located on the Eastside . The population was 45,054 at the 2000 United States Census; its estimated 2006 population of 46,476 makes it the ninth largest city in King County and the nineteenth largest city in the state....
, Washington
Washington

Washington is a U.S. state in the Pacific Northwest region of the United States. Washington was carved out of the western part of Washington Territory which had been ceded by Britain in 1846 by the Oregon Treaty as settlement of the Oregon Boundary Dispute....
-based developer Valve Software, which was founded in 1996 by former Microsoft
Microsoft

Microsoft Corporation is a multinational corporation computer technology corporation that develops, manufactures, licenses, and supports a wide range of computer software products for computing devices....
 employees Mike Harrington
Mike Harrington

Mike Harrington was the co-founder of the computer game game development company, Valve Software and a lead programmer of the game Half-Life ....
 and Gabe Newell
Gabe Newell

Gabe Newell is the co-founder and managing director of game development company Valve Corporation....
. They settled on a concept for a horror-themed 3D action game
Action game

An action game is a video game genre that emphasizes physical challenges, including hand-eye coordination and reaction-time. Action games are a vast genre that includes diverse subgenres such as fighting games, first-person shooters, and platform games....
, using the Quake engine
Quake engine

The Quake engine is the game engine that was written to power 1996's Quake, written by id Software. It featured true 3D real-time rendering and is now licensed under the terms of the GNU General Public License ....
 as licensed by id Software
Id Software

id Software is an American video game developer from Mesquite, Texas. The company was founded in 1991 by four members of the computer company Softdisk: game programmer John D....
. Valve eventually modified the engine a great deal, notably adding skeletal animation
Skeletal animation

Skeletal animation, sometimes referred to as rigging, is a technique in computer animation, particularly in the animation of vertebrates, in which a character is represented in two parts: a surface representation used to draw the character and a hierarchical set of bones used for animation only ....
 and Direct3D
Direct3D

Direct3D is part of Microsoft's DirectX application programming interface. Direct3D is only available for Microsoft's various Microsoft Windows operating systems and is the base for the graphics API on the Xbox and Xbox 360 console systems....
 support; a developer stated in a PC Accelerator magazine preview that seventy percent of the engine code was rewritten. The company had difficulties finding a publisher at first, many believing their project "too ambitious" for a studio headed by newcomers to the video game industry. However, Sierra On-Line had been very interested in making a 3D action game, especially one based on the Quake engine, and so signed them for a one-game deal.

The original code name for Half-Life was Quiver, after the Arrowhead military base from Stephen King
Stephen King

Stephen Edwin King is an United States author of contemporary horror fiction, fantasy fiction and science fiction.Having sold an estimated List of bestselling fiction authors of his books, King is best known for his work in horror fiction, in which he demonstrates a thorough knowledge of the genre's history....
's novella The Mist
The Mist

"The Mist" is a horror fiction novella by the American author Stephen King, in which the small town of Bridgton , Maine, Maine is suddenly enveloped in an unnatural mist that conceals otherworldly monsters....
, which served as early inspiration for the game. Gabe Newell explained that the name Half-Life was chosen because it was evocative of the theme, not clichéd, and had a corresponding visual symbol: the Greek letter
Greek alphabet

The Greek alphabet is a set of twenty-four letters that has been used to write the Greek language since the late 9th century BC or early 8th century BCE....
 ? (lower-case lambda
Lambda

Lambda is the 11th letter of the Greek alphabet. In the system of Greek numerals it has a value of 30. It was derived from the Phoenician alphabet Lamed ....
), which represents the decay constant in the half-life
Half-life

The half-life of a quantity whose value decreases with time is the interval required for the quantity to decay to half of its initial value. The concept originated in describing how long it takes atoms to undergo radioactive decay but also applies in a wide variety of other situations....
 equation. According to one of the game's designers, Harry Teasley, Doom was a huge influence on most of the team working on Half-Life. According to Teasley, they wanted Half-Life to "scare you like Doom did".

The first public appearances of Half-Life came in early 1997; it was a hit at Electronic Entertainment Expo
E3

The E3 Media and Business Summit, formerly known as Electronic Entertainment Expo and commonly known as E3, is an annual trade show for the video game industry presented by the Entertainment Software Association....
 that year, where they primarily demonstrated the animation system and artificial intelligence
Artificial intelligence

Artificial intelligence is the intelligence of machines and the branch of computer science which aims to create it. Major AI textbooks define the field as "the study and design of intelligent agents,"...
. Valve Software hired science fiction author Marc Laidlaw
Marc Laidlaw

Marc Laidlaw is an United States writer of science fiction and horror fiction and also a computer game designer with Valve Software. He is perhaps most famous for writing Dad's Nuke and The 37th Mandala, and for working on the popular Half-Life ....
 in August 1997 to work on the game's characters and level design
Level design

Level design or game mapping is the creation of level s—locales, stages, or missions—for a video game . This is commonly done using level design tools, special software usually developed just for the purpose of building levels, however some games feature built-in level editing tools....
. Half-Lifes soundtrack was composed by Kelly Bailey. Half-Life was originally planned to be shipped in late 1997, to compete with Quake II
Quake II

Quake II, released on December 9, 1997, is a first-person shooter Personal computer game developed by id Software and distributed by Activision....
, but was postponed when Valve decided the game needed significant revision.

In a 2003 Making Of... feature in Edge, Newell discusses the team's early difficulties with level design. In desperation, a single level was assembled including every weapon, enemy, scripted event and level design quirk that the designers had come up with so far. This single level inspired the studio to press on with the game. As a result, the studio completely reworked the game's artificial intelligence and levels in the year leading up to its release. At E3 1998 it was given Game Critics Awards
Game Critics Awards

The Game Critics Awards are a set of annual awards held after the E3 video game conference since 1998. The awards are given to products displayed at E3 with the title Best of E3 of their category....
 for "Best PC Game" and "Best Action Game". The release date was delayed several times in 1998 before the game was finally released in November of that year.

The demo
Game demo

A game demo is a freely distributed demonstration or preview of an upcoming or recently released Video game.Demos are typically released by the game's video game publisher to help consumers get a feel of the game before deciding whether to buy the full version....
 for
Half-Life was released on February 12, 1999. Entitled Uplink, the demonstration featured many of the weapons and non-player characters in Half-Life. Set 48 hours into the game, Uplink's levels are heavily revised variations of levels cut during Half-Life's development phase, and are not present in the end version of the full game.

Name

The titles of
Half-Life and its expansion packs are all named after scientific terms. Half-Life itself is a reference to the half-life
Half-life

The half-life of a quantity whose value decreases with time is the interval required for the quantity to decay to half of its initial value. The concept originated in describing how long it takes atoms to undergo radioactive decay but also applies in a wide variety of other situations....
 of a quantity (such as a radioactive material), the amount of time required for the quantity to decay
Radioactive decay

Radioactive decay is the process in which an unstable atomic nucleus loses energy by emitting ionizing particles and radiation. This decay, or loss of energy, results in an atom of one type, called the parent nuclide transforming to an atom of a different type, called the daughter nuclide....
 to half of its initial value. The Greek letter lambda
Lambda

Lambda is the 11th letter of the Greek alphabet. In the system of Greek numerals it has a value of 30. It was derived from the Phoenician alphabet Lamed ....
, which features prominently on the game's packaging, represents the related decay constant
Exponential decay

A quantity is said to be subject to exponential decay if it decreases at a rate proportional to its value. Symbolically, this can be expressed as the following differential equation, where N is the quantity and ? is a negative and non-negative numbers called the decay constant....
, as well as the Lambda Complex featured in the game.
Opposing Force
Half-Life: Opposing Force

Half-Life: Opposing Force is an expansion pack for Valve Corporation science fiction first-person shooter video game Half-Life . The game was developed by Gearbox Software and published by Sierra Entertainment on November 1, 1999....
, while it could be named because the player assumes the role of one of the enemies in the original game, is also a reference to Newton's third law of motion
Newton's laws of motion

Newton's laws of motion are three physical laws that form the basis for classical mechanics, Direct relationship the forces acting on a Physical body to the motion of the body....
, while
Blue Shift
Half-Life: Blue Shift

Half-Life: Blue Shift is an expansion pack for Valve Corporation science fiction first-person shooter video game Half-Life . The game was developed by Gearbox Software and published by Sierra Entertainment on June 12, 2001....
refers to the blue shift
Blue Shift

"Blue Shift" is the tenth story chronologically to appear in Stephen Baxter's science fiction anthology novel Vacuum Diagrams. "Blue Shift" was originally published in Writers of the Future volume 5 in 1989....
ing of the frequency
Frequency

Frequency is the number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency.The period is the duration of one cycle in a repeating event, so the period is the reciprocal of the frequency....
 of radiation
Electromagnetic radiation

Electromagnetic radiation takes the form of wave propagation waves in a vacuum or in matter. EM radiation has an electric field and magnetic field component which oscillate in phase perpendicular to each other and to the direction of energy Wave propagation....
 caused by the Doppler effect
Doppler effect

The Doppler effect , named after Austrian physicist Christian Doppler who proposed it in 1842, is the change in frequency and wavelength of a wave for an observer moving relative to the source of the waves....
, in a similar parallel reference to the name of the shift your character takes. In
Half-Life: Decay
Half-Life: Decay

Half-Life: Decay is an expansion pack for Valve Corporation science fiction, first-person shooter video game Half-Life . Developed by Gearbox Software and published by Sierra Entertainment, Decay was released as part of the PlayStation 2 version of Half-Life released on November 14, 2001....
, the title again references the half-life equation with the Lambda symbol being the decay constant.

Ports

Half-Life was ported
Porting

In computer science, porting is the process of adapting software so that an executable Computer program can be created for a computing environment that is different from the one for which it was originally designed ....
 to the PlayStation 2
PlayStation 2

The PlayStation 2 is a History of video game consoles video game console manufactured by Sony. The successor to the PlayStation, and the predecessor to the PlayStation 3, the PlayStation 2 forms part of the PlayStation of video game consoles....
 by Gearbox Software
Gearbox Software

Gearbox Software, LLC is an United States video game developer company based in Plano, Texas....
 and released in 2001. This version of the game had a significant overhaul in terms of both character models, weapons, and more advanced and extended levels and general map geometry (see Half-Life High Definition Pack for a model-comparison). Also added in is a head-to-head play and a co-op expansion called
Half-Life: Decay
Half-Life: Decay

Half-Life: Decay is an expansion pack for Valve Corporation science fiction, first-person shooter video game Half-Life . Developed by Gearbox Software and published by Sierra Entertainment, Decay was released as part of the PlayStation 2 version of Half-Life released on November 14, 2001....
that allowed players to play as the two female scientists Dr. Cross and Dr. Green at Black Mesa. Another interesting feature allowed players to use a USB mouse and keyboard, a feature previously unmatched on the platform.

Versions for the Dreamcast and Macintosh
Macintosh

File:Imac alu.pngMacintosh, commonly shortened to Mac, is a brand name which covers several lines of personal computers designed, developed, and marketed by Apple Inc....
 were essentially completed, but never commercially released. The Dreamcast edition was eventually leaked onto the internet. The Dreamcast version uses the same models as the Half-Life High Definition pack.

Gearbox Software
Gearbox Software

Gearbox Software, LLC is an United States video game developer company based in Plano, Texas....
 was slated to release a port to the Dreamcast under contract by Valve
Valve Corporation

Valve Corporation is an United States video game developer company based in Bellevue, Washington, USA that was founded in 1996, and made famous by its first product, Half-Life , which was released in November 1998....
 and their then publisher Sierra On-Line near the end of 2000. At the ECTS
European Computer Trade Show

The European Computer Trade Show, commonly known as ECTS, was an annual trade show for the European computer and video game industry, which first ran in 1988, with the last event occurring in 2004....
 2000, a build of the game was playable on the publisher's stand, and developers Randy Pitchford
Randy Pitchford

Randall "Randy" Pitchford II is one of four founders of Gearbox Software and currently the CEO and president of the company....
 and Brian Martel were in attendance to show it off and give interviews to the press. However, despite only being weeks from going gold, it was never commercially released; Sierra announced that Half-Life on Dreamcast was canceled "due to changing market conditions" onset by third-party abandonment of the Dreamcast. That year Sierra On-Line showed a PlayStation 2
PlayStation 2

The PlayStation 2 is a History of video game consoles video game console manufactured by Sony. The successor to the PlayStation, and the predecessor to the PlayStation 3, the PlayStation 2 forms part of the PlayStation of video game consoles....
 port at E3
E3

The E3 Media and Business Summit, formerly known as Electronic Entertainment Expo and commonly known as E3, is an annual trade show for the video game industry presented by the Entertainment Software Association....
 2001. This version was released in North America in late October of the same year, followed by a European release just a month later. Around the same time,
Half-Life: Blue Shift, which was intended to be a Dreamcast-exclusive side story
Side story

A side story in fiction is a form of narrative that occurs alongside established stories set within a fictional universe. As opposed to a prequel, sequel, or interquel, a side story takes place within the same time frame as an existing work....
, was released on Windows as the second
Half-life Expansion Pack.

Expansions and sequels


Expansions

Two expansion pack
Expansion pack

An expansion pack, expansion set, or supplement is an addition to an existing role-playing game, tabletop game or video game. These add-ons usually add new game areas, weapons, objects, and/or an extended storyline to a complete and already released game....
s by outside developer Gearbox Software
Gearbox Software

Gearbox Software, LLC is an United States video game developer company based in Plano, Texas....
 have been released for the PC version:
Half-Life: Opposing Force
Half-Life: Opposing Force

Half-Life: Opposing Force is an expansion pack for Valve Corporation science fiction first-person shooter video game Half-Life . The game was developed by Gearbox Software and published by Sierra Entertainment on November 1, 1999....
(1999) and Half-Life: Blue Shift
Half-Life: Blue Shift

Half-Life: Blue Shift is an expansion pack for Valve Corporation science fiction first-person shooter video game Half-Life . The game was developed by Gearbox Software and published by Sierra Entertainment on June 12, 2001....
(2001)— both titled with double meanings relating to physics phenomena. The former returns the player to Black Mesa during the events of Half-Life's storyline, but this time from the perspective of Adrian Shephard
Adrian Shephard

Corporal Adrian Shephard is the silent player character and protagonist in Half-Life: Opposing Force, the first expansion pack, by Gearbox Software, for the first-person shooter Video game Half-Life ....
, one of the Marines in the Hazardous Environment Combat Unit sent to cover up evidence of the incident. It introduced several new weapons, new non-player character
Non-player character

A non-player character, often shortened to NPC, is a fictional character that is controlled by the gamemaster in role-playing games. When this definition extends to video games, an NPC in a video game is usually part of the computer program, and not controlled by a human....
s, both friendly and hostile and new, previously unseen areas of the facility. The expansion is shorter than
Half-Life, having 11 chapters to the original's 19.

Blue Shift returns the player to Half-Life
s Black Mesa timeline once more, this time as Barney Calhoun
Barney Calhoun

Barney Calhoun is a fictional character in the Half-Life series of first-person shooter Video games by Valve Software. Although initially considered a "throwaway" character , Barney has played increasingly prominent roles as the series has progressed....
, one of the facility's security guards. The expansion was originally developed as a bonus mission for the canceled Dreamcast version. Blue Shift came with the High Definition Pack, that gave the player the option to update the look of Half-Life, Opposing Force, and the new Blue Shift content. Blue Shift had relatively little new content compared to Opposing Force: aside from a few variations on existing models, all content was already present in the original Half-Life.

Half-Life: Decay
Half-Life: Decay

Half-Life: Decay is an expansion pack for Valve Corporation science fiction, first-person shooter video game Half-Life . Developed by Gearbox Software and published by Sierra Entertainment, Decay was released as part of the PlayStation 2 version of Half-Life released on November 14, 2001....
 was another expansion by Gearbox, released only as an extra with the PlayStation 2
PlayStation 2

The PlayStation 2 is a History of video game consoles video game console manufactured by Sony. The successor to the PlayStation, and the predecessor to the PlayStation 3, the PlayStation 2 forms part of the PlayStation of video game consoles....
 version of Half-Life. The add-on featured cooperative gameplay in which two players could solve puzzles or fight against the many foes in the Half-Life universe.

In 2000, a compilation pack titled the Half-Life: Platinum Pack was released, including (with their respective manuals) Half-Life, Counter-Strike
Counter-Strike

Counter-Strike is a tactical shooter first-person shooter video game which originated from a Half-Life Game mod by Minh Le and Jess Cliffe....
, Team Fortress Classic
Team Fortress Classic

Team Fortress Classic, also known as Team Fortress 1.5, is a team-based multiplayer video game first-person shooter video game developed by the Valve Corporation....
, and Half-Life: Opposing Force
Half-Life: Opposing Force

Half-Life: Opposing Force is an expansion pack for Valve Corporation science fiction first-person shooter video game Half-Life . The game was developed by Gearbox Software and published by Sierra Entertainment on November 1, 1999....
. In 2002, the pack was re-released under the new titles Half-Life Platinum Collection and Half-Life: Generation. These new iterations also included the Half-Life: Blue Shift
Half-Life: Blue Shift

Half-Life: Blue Shift is an expansion pack for Valve Corporation science fiction first-person shooter video game Half-Life . The game was developed by Gearbox Software and published by Sierra Entertainment on June 12, 2001....
 expansion pack. In 2005, Half-Life 1: Anthology was released, containing Steam
Steam (content delivery)

Steam is a digital distribution, digital rights management, multiplayer and communications platform developed by Valve Corporation. It is used to distribute a wide range of games and related media entirely over the internet, stretching from one-man Independent video game development efforts to some of the world's most popular games....
-only versions of the following games on a single CD: Half-Life, Half-Life: Opposing Force
Half-Life: Opposing Force

Half-Life: Opposing Force is an expansion pack for Valve Corporation science fiction first-person shooter video game Half-Life . The game was developed by Gearbox Software and published by Sierra Entertainment on November 1, 1999....
, Half-Life: Blue Shift
Half-Life: Blue Shift

Half-Life: Blue Shift is an expansion pack for Valve Corporation science fiction first-person shooter video game Half-Life . The game was developed by Gearbox Software and published by Sierra Entertainment on June 12, 2001....
, and Team Fortress Classic
Team Fortress Classic

Team Fortress Classic, also known as Team Fortress 1.5, is a team-based multiplayer video game first-person shooter video game developed by the Valve Corporation....
.

Sequels

The sequel, Half-Life 2
Half-Life 2

Half-Life 2 is a science fiction first-person shooter Video game and the sequel to the highly acclaimed Half-Life . It was developed by Valve Corporation and was released on November 16, 2004, following a protracted five-year, $40 million development cycle during which the game?s source code was leaked to the Internet....
, was merely a rumor until it was finally revealed at E3
E3

The E3 Media and Business Summit, formerly known as Electronic Entertainment Expo and commonly known as E3, is an annual trade show for the video game industry presented by the Entertainment Software Association....
 in May 2003, which ignited a firestorm of hype surrounding the game. The player again takes the role of Gordon Freeman, this time several years after the Black Mesa incident in the dystopic
Dystopia

A dystopia is the vision of a society that is the opposite of utopia. A dystopian society is one in which the conditions of life are suffering, characterized by human misery, poverty, oppression, violence, disease, and/or pollution....
 Eastern Europe
Eastern Europe

Eastern Europe is a term that applies to the geopolitical region encompassing the easternmost part of the Europe. Throughout history and to a lesser extent today, parts of Eastern Europe has been distinguishable from Western Europe and other regions due to cultural, religious, economic, and historical reasons, even though there i...
an "City 17" where he must fight as part of a rebellion against an alien regime. After a series of controversies and delays, Half-Life 2 was released on November 16, 2004.

Surfacetensionhls
To experience firsthand the processes mod-makers would have to go through with the new engine, Valve ported
Porting

In computer science, porting is the process of adapting software so that an executable Computer program can be created for a computing environment that is different from the one for which it was originally designed ....
 Half-Life (dubbed Half-Life: Source) and Counter-Strike
Counter-Strike

Counter-Strike is a tactical shooter first-person shooter video game which originated from a Half-Life Game mod by Minh Le and Jess Cliffe....
 to their new Source engine
Source engine

The Source engine is a game engine developed by Valve Corporation. The engine supports Microsoft Windows , Xbox, Xbox 360, and PlayStation 3.It debuted in October 2004 with Counter-Strike: Source and shortly thereafter Half-Life 2....
. Half-Life: Source is a straight port, lacking any new content or the Blue Shift High Definition pack. However, it does take advantage of vertex and pixel shaders
Shader

A shader in the field of computer graphics is a set of software instructions, which is used primarily to calculate Rendering effects on graphics hardware with a high degree of flexibility....
 for more realistic water effects, as well as Half-Life 2's realistic physics engine. They also added several other features from Half-Life 2, including improved dynamic lightmaps, vertex maps, ragdolls, and a shadowmap system with cleaner, higher resolution, specular texture and normal maps, as well as utilization of the render-to-texture soft shadows found in Half-Life 2s Source engine, along with 3D skybox
Skybox (video games)

A skybox is a method to easily create a background to make a Video game level look bigger than it really is. The level is enclosed in a cube; the sky, distant mountains, distant buildings, and other unreachable objects are displayed on the cube's faces, thus creating the illusion of distant three-dimensional surroundings....
 replacements in place of the old 16-bit color prerendered bitmap skies. The
Half-Life port possesses many of the Source engine's graphical strengths as well as control weaknesses that have been noted in the Source engine. Half-Life: Source is available with special editions of Half-Life 2, or separately on Steam
Steam (content delivery)

Steam is a digital distribution, digital rights management, multiplayer and communications platform developed by Valve Corporation. It is used to distribute a wide range of games and related media entirely over the internet, stretching from one-man Independent video game development efforts to some of the world's most popular games....
.

Half-Life Source has been criticized for not fully utilizing many of the features of the Source engine found in Half-Life 2, as it still uses textures and models from the original game. Due to this, a third-party mod remake called Black Mesa is also under development.

On June 10, 2005, Valve announced through their Steam update news service an upcoming port of
Half-Life Deathmatch, the multiplayer portion of the original game, much in the same fashion as the earlier released Half-Life: Source. No exact release date was given, simply the words "In the coming weeks..." On July 2, 2005, Half-Life Deathmatch: Source was released.

On June 1, 2006
Half-Life 2: Episode One
Half-Life 2: Episode One

Half-Life 2: Episode One is the first in a trilogy of Episodic games that serve as the sequel for the 2004 first-person shooter video game Half-Life 2....
was released. It is part of a trilogy of episodes, of which the second
Half-Life 2: Episode Two

Half-Life 2: Episode Two is the second installment in Valve Corporation's series of episodic games for the first person shooter computer game Half-Life 2....
 was released on October 10, 2007, as part of
The Orange Box
The Orange Box

The Orange Box is a video game bundled software for Microsoft Windows, the Xbox 360, and the PlayStation 3. The Windows and Xbox 360 versions were produced and published by Valve Corporation and released on October 10, 2007 as both a boxed retail copy and a Windows-only download through Valve's Steam ....
.

Third-party mods

From its release in 1998,
Half-Life saw fervent support from independent game developers, due in no small part to support and encouragement from Valve Software. Worldcraft
Valve Hammer Editor

Valve Hammer Editor, formerly known as Worldcraft and now commonly called Hammer, is Valve Software's Level design program for their game engine, Source engine....
, the level-design tool used during the game's development, was included with the game software. Printed materials accompanying the game indicated Worldcraft's eventual release as a retail product, but these plans never materialised. Valve also released a software development kit
Software development kit

A software development kit is typically a set of development tools that allows a software engineer to create application software for a certain software package, software framework, hardware platform, computer system, video game console, operating system, or similar platform....
, enabling developers to modify the game and create mod
Mod (computer gaming)

Mod or modification is a term generally applied to Personal computer game, especially first-person shooters, Role-playing games and real-time strategy games....
s. Both tools were significantly updated with the release of the version
Version

Software versioning is the process of assigning either unique version names or unique version numbers to unique states of computer software....
 1.1.0.0 patch
Patch (computing)

A patch is a small piece of software designed to fix problems with or update a computer program or its supporting data. This includes fixing computer bug, replacing graphics and improving the usability or performance....
. Many supporting tools (including texture editors, model editors, and rival level editors like the multiple engine editor QuArK
Quake Army Knife

QuArK , is a freeware and open source computer programs for developing 3D computer graphics Game asset for a large variety of popular video games, mostly first-person shooters using game engine similar to or based on the Quake engine by id Software....
) were either created or updated to work with
Half-Life.

An SDK for
Half-Life has been released and is being used as a base for many multiplayer mods such as Counter-Strike
Counter-Strike

Counter-Strike is a tactical shooter first-person shooter video game which originated from a Half-Life Game mod by Minh Le and Jess Cliffe....
. Other multiplayer mods include Team Fortress Classic
Team Fortress Classic

Team Fortress Classic, also known as Team Fortress 1.5, is a team-based multiplayer video game first-person shooter video game developed by the Valve Corporation....
(TFC), Day of Defeat
Day of Defeat

Day of Defeat is a team-based multiplayer World War II first-person shooter Video game of the European Theatre of World War II. As of 2008, the game is one of the ten most played Half-Life Mod in terms of players, according to GameSpy....
(DOD), Deathmatch Classic
Deathmatch Classic

Deathmatch Classic or DMC is a multiplayer mod of the popular first-person shooter, Half-Life . It was released as a free download concurrently with the 1.1.0.7 patch of the game on June 11, 2000....
(DMC), Action Half-Life
Action Half-Life

Action Half-Life is a mod for the award-winning first-person shooter computer game Half-Life . It strives to simulate action movies, especially those directed by John Woo....
, Firearms
Firearms (computer game)

Firearms is a first-person shooter video game for Half-Life which originated from a Quake Game mod. Initially developed in 1998, Firearms was created as a quasi-realistic team-based FPS....
, Science and Industry
Science and Industry

Science and Industry is a multiplayer, teamplay mod for the computer game Half-Life . It is one of the oldest Half-Life mods and has been described as a classic Half-Life mod....
, The Specialists
The Specialists

The Specialists is a multiplayer mod for the first-person shooter computer game Half-Life . The final version of the mod is 3.0....
, and Natural Selection
Natural Selection (computer game)

Natural Selection is a mod for the computer game Half-Life . Its concept is a mixture of the first-person shooter and real-time strategy game genres....
. TFC and DMC were developed in-house at Valve Software. Counter-Strike, Day of Defeat, and others that began life as the work of independent developers (self-termed "modders"), later on received aid from Valve. There was even a free team-based multiplayer mod called Underworld Bloodline created to promote the Sony Pictures movie Underworld
Underworld (2003 film)

Underworld is a 2003 in film action film-horror film film about the secret history of Races of Underworld universe#Vampires and a type of werewolf known as Races of Underworld universe#Lycans ....
.

Numerous single player mods have also been created, like
USS Darkstar
USS Darkstar

USS Darkstar is a Half-Life Mod created by Neil Manke and his team, largely based in Canada. The mod follows Gordon Freeman and several other scientists on board USS Darkstar a large exploratory starship that resembles the Nostromo from the movie Alien....
(1999, a futuristic action-adventure onboard a zoological research spaceship), The Xeno Project 1 and 2 (1999-2005, a two-part mod starting in Xen and again including spaceships), Edge of Darkness (2000, which features some unused Half-Life models), Half-Life: Absolute Redemption (2000, which brings back Gordon Freeman for four additional episodes and another encounter with the G-Man), They Hunger
They Hunger

They Hunger is a single player Horror fiction based Mod of Valve Software's first-person shooter Half-Life . It was released by Neil Manke's Black Widow Games in three episodes, the first in 1999, the second in 2000, and the final installment in 2001....
(2000-2001, a survival horror total conversion
Mod (computer gaming)

Mod or modification is a term generally applied to Personal computer game, especially first-person shooters, Role-playing games and real-time strategy games....
 trilogy involving zombies), and Poke646 (2001, a follow-up to the original
Half-Life story with improved graphics).

Some
Half-Life modifications eventually landed on retail shelves. Counter-Strike was the most successful, unexpectedly becoming the biggest selling online game to date and having been released in five different editions: as a standalone product (2000), as part of the Platinum Pack (2000), as an Xbox
Xbox

The Xbox is a History of video games video game console produced by Microsoft. It was Microsoft's first foray into the gaming console market, and competed with Sony's PlayStation 2 and Nintendo's GameCube....
 version (2003) as the single player spin-off,
Counter-Strike: Condition Zero
Counter-Strike: Condition Zero

Counter-Strike: Condition Zero is a Multiplayer video game computer game and the follow-up to Counter-Strike. The game was released in 2004 using the GoldSrc Half-Life engine....
(2004), and the newest addition, Counter-Strike: Source
Counter-Strike: Source

Counter-Strike: Source is a PC Game developed by the Valve Corporation. It is a complete remake of Counter-Strike using the Source engine. As in the original, Counter-Strike: Source pits a team of counter-terrorists against a team of Terrorists in a series of rounds....
, which runs on Half-Life 2
s Source engine. Team Fortress Classic
Team Fortress Classic

Team Fortress Classic, also known as Team Fortress 1.5, is a team-based multiplayer video game first-person shooter video game developed by the Valve Corporation....
, Day of Defeat
Day of Defeat

Day of Defeat is a team-based multiplayer World War II first-person shooter Video game of the European Theatre of World War II. As of 2008, the game is one of the ten most played Half-Life Mod in terms of players, according to GameSpy....
 and Gunman Chronicles
Gunman Chronicles

Gunman Chronicles is a futuristic first-person shooter computer game using the Half-Life game engine. It was originally planned as a total conversion for Quake; it then switched games to Quake II, followed by another switch to Half-Life, before being spotted by Valve Software and released as a stand-alone retail product i...
 (2000, a futuristic Western movie
Western (genre)

The Western is a fiction genre seen in film, television, radio, literature, painting and other visual arts. Westerns are devoted to telling stories set primarily in the later half of the 19th century in what became the Western United States , but also in Western Canada, Mexico , Alaska and even Australia ....
-style total conversion
Mod (computer gaming)

Mod or modification is a term generally applied to Personal computer game, especially first-person shooters, Role-playing games and real-time strategy games....
 with emphasis on its single player mode) were also released as stand-alone products.

Reception


Half-Lifes public reception was overwhelmingly positive in terms of reviews, acclaim and sales. As of November 16, 2004, eight million copies of the game had been sold, while 9.3 million copies had been sold by 2008. The game had won over 51 Game of the Year
Game of the Year

Game of the Year is a distinction awarded by various magazines and websites to a deserving Personal computer game or Console game video game. Many publications will award a single "Game of the Year" to a single title that they feel represents the pinnacle of gaming achievement that year, as well as smaller awards ....
 awards.

Half-Life was critically acclaimed, earning an overall score of 96% on review collection website Metacritic
Metacritic

Metacritic is a website that collates reviews of music albums, console game, film, television program, DVDs, and books. For each product, a numerical score from each review is obtained and the total is averaged....
. IGN
IGN

IGN is a multimedia news and reviews website that focuses heavily on video games. Its corporate parent is IGN Entertainment, which owns and controls separate sites such as GameSpy, GameStats, Rotten Tomatoes and AskMen....
 described it as "a tour de force in game design, the definitive single player game in a first person shooter." IGN has also respected the game as one of the most influential video games. GameSpot
GameSpot

GameSpot is a video game website that provides news, reviews, previews, downloads, and other information. The site was launched in May 1996 by Pete Deemer and Vince Broady....
 claimed that it was the "closest thing to a revolutionary step the genre has ever taken". GameSpot
GameSpot

GameSpot is a video game website that provides news, reviews, previews, downloads, and other information. The site was launched in May 1996 by Pete Deemer and Vince Broady....
 inducted
Half-Life into their "Greatest Games of All Time" list in May 2007. In 2004, GameSpy
GameSpy

GameSpy, also known as GameSpy Industries, is a division of IGN Entertainment, which operates a network of game websites and provides online video game-related services and software....
 held a Title Fight, in which readers voted on what they thought was the "greatest game of all time", and Half-Life was the overall winner of the survey. In the November 1999, October 2001, and April 2005 issues of
PC Gamer
PC Gamer

PC Gamer is a magazine founded in Britain in 1993 devoted to PC game and published monthly by Future Publishing. The magazine has several regional editions, with the UK and US editions becoming the best selling PC games magazines in their respective countries....
, Half-Life was named "Best Game of All Time"/"Best PC Game Ever". The popularity of the Half-Life series has led way to an array of side products and collectibles. Valve
Valve Corporation

Valve Corporation is an United States video game developer company based in Bellevue, Washington, USA that was founded in 1996, and made famous by its first product, Half-Life , which was released in November 1998....
 offers
Half-Life-related products such as a plush
Plush

Plush is a textile having a cut nap or pile the same as fustian or velvet.Originally the pile of plush consisted of mohair or worsted yarn, but now silk by itself or with a cotton backing is used for plush, the distinction from velvet being found in the longer and less dense pile of plush....
 vortigaunt
Vortigaunt

Vortigaunts are a fictional Extraterrestrial life race in the Half-Life by Valve Corporation. In Half-Life and its three expansions, Vortigaunts are frequently encountered by the player as hostile non-player characters....
, plush headcrab
Headcrab

A headcrab is a fictional extraterrestrial life parasitoid found in the Half-Life video game series created by Valve Software. They are the most numerous and arguably most iconic aliens in the series....
, posters, clothing, and mousepads.

The immersive gaming experience and interactive environment was cited by several reviewers as being revolutionary. Allgame
Allgame

Allgame is a commercial database of information about arcade games, video games and console manufacturers.Allgame is owned by All Media Guide, along with Allmusic and Allmovie....
 said "It isn't everyday that you come across a game that totally revolutionizes an entire genre, but Half-Life has done just that." Hot Games commented on the realness of the game, and how the environment "all adds up to a totally immersive gaming experience that makes everything else look quite shoddy in comparison." Gamers Depot found the game engaging, stating that they have "yet to play a more immersive game period".

Despite the praise that the game has received, there have also been some complaints. The Electric Playground
The Electric Playground

The Electric Playground is a television program focused on video games. It is written and directed by Victor Lucas and Glen Lougheed, produced by Greedy Productions ....
 said that
Half-Life was an "immersive and engaging entertainment experience", but cited that this only lasted for the first half of the game, citing that the game "peaked too soon".

Guinness World Records awarded Half-Life with the world record for "Best-Selling First-Person Shooter of All Time (PC)" in the Guinness World Records: Gamer's Edition 2008.

A short film based upon Half-Life entitled
Half-Life: Uplink, was developed by Cruise Control, a British marketing agency, and was released on March 15 1999. However, Sierra withdrew it from circulation, after itself and Valve had failed to resolve licensing issues with Cruise Control over the film. The critical reception of the film was very poor. The plot of the film was that a journalist infiltrates the Black Mesa Research Facility, trying to discover what has happened there.

External links