Half-Life 2: Episode One

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Half-Life 2: Episode One (stylized as HλLF-LIFE 2 : EPISODE ONE) is a first-person shooter video game, the first in an intended series of episodes that would serve as the sequels to Half-Life 2 (2004).wikipedia
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Half-Life 2

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Half-Life 2: Episode One (stylized as HλLF-LIFE 2 : EPISODE ONE) is a first-person shooter video game, the first in an intended series of episodes that would serve as the sequels to Half-Life 2 (2004).
It was followed by the sequels Episode One (2006) and Episode Two (2007).

Source (game engine)

SourceSource engineSource game engine
Episode One uses the same game engine, Source, as Half-Life 2.
The release of Half-Life 2: Episode One and The Orange Box both introduced new versions of the engine that could not be used to run older games or mods without the developers performing upgrades to code and, in some cases, content.

Alyx Vance

Alyx
Episode One follows scientist Gordon Freeman and his companion Alyx Vance in humanity's continuing struggle against the alien civilization known as the Combine.
Alyx Vance is a non-player character in Valve's 2004 first-person shooter video game Half-Life 2, and its following episodes Half-Life 2: Episode One and Episode Two.

The Orange Box

Orange Box Original SoundtrackOrange Box, TheThe ''Orange Box
Episode One is available as part of a bundle package known as The Orange Box, which also includes Half-Life 2, Episode Two, Team Fortress 2, and Portal.
Two of the games included, Half-Life 2 and its first stand-alone expansion, Episode One, had previously been released as separate products.

Half-Life 2: Episode Two

Episode TwoDoctor MagnussonHunter
Episode One is available as part of a bundle package known as The Orange Box, which also includes Half-Life 2, Episode Two, Team Fortress 2, and Portal. As the game comes to an end, Gordon and Alyx are caught in a major accident, and their fates are revealed in the sequel, Episode Two.
It was developed by Valve Corporation in tandem with Episode One, the first game in the series, and released in 2007 via Valve's Steam content distribution platform.

Episodic video game

episodicepisodesepisode
Half-Life 2: Episode One (stylized as HλLF-LIFE 2 : EPISODE ONE) is a first-person shooter video game, the first in an intended series of episodes that would serve as the sequels to Half-Life 2 (2004).
His "Three Laws of Episodics" lay out rules by which GameTap determines whether a title is episodic or not, and rules out Bone and Half-Life 2 Episodes due to the unknown duration of time between episodes.

Combine (Half-Life)

CombineCivil ProtectionThe Combine
Episode One follows scientist Gordon Freeman and his companion Alyx Vance in humanity's continuing struggle against the alien civilization known as the Combine.
In Episode One, the destruction of the teleporter at the top of the Citadel has isolated the Combine forces on Earth, but also caused its primary reactor to begin to melt down.

Team Fortress 2

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Episode One is available as part of a bundle package known as The Orange Box, which also includes Half-Life 2, Episode Two, Team Fortress 2, and Portal.
Walker and Cook worked on various other Valve projects; Walker was project lead on Half-Life 2: Episode One and Cook became a Steam developer.

Gordon Freeman

Dr. Gordon Freeman
Episode One follows scientist Gordon Freeman and his companion Alyx Vance in humanity's continuing struggle against the alien civilization known as the Combine.
Half-Life 2: Episode One rejoins Gordon and Alyx Vance, who are separately removed from the G-Man's stasis by the Vortigaunts and rescued a split second before the reactor explosion, greatly displeasing the G-Man.

Locations of Half-Life

XenBlack MesaBlack Mesa Research Facility
The game's events take place immediately after those in Half-Life 2, in and around war-torn City 17. The original Half-Life takes place at a remote laboratory called the Black Mesa Research Facility.
City 17 is a dystopian metropolitan area in Eastern Europe that forms the primary setting for Half-Life 2 and its first expansion, Episode One.

Half-Life (series)

Half-LifeHalf-Life'' seriesantlions
Half-Life (1998) and Half-Life 2 (2004) are full-length games, while Half-Life 2: Episode One (2006) and Half-Life 2: Episode Two (2007) are shorter, episodic games.

Characters of Half-Life

Judith MossmanDr. Wallace BreenDr. Isaac Kleiner
The player guides Gordon to aid in humanity's struggle against the Combine and its human representative, Dr. Wallace Breen.
This section deals with characters that appear in Half-Life 2, Half-Life 2: Episode One and Half-Life 2: Episode Two.

Half-Life (video game)

Half-LifeHalf LifeHalf-Life'' (video game)
The original Half-Life takes place at a remote laboratory called the Black Mesa Research Facility.
It was followed by two episodic sequels, Half-Life 2: Episode One and Half-Life 2: Episode Two, released on June 1, 2006, and October 10, 2007, respectively.

First-person shooter

first person shooterFPSfirst-person
Half-Life 2: Episode One (stylized as HλLF-LIFE 2 : EPISODE ONE) is a first-person shooter video game, the first in an intended series of episodes that would serve as the sequels to Half-Life 2 (2004).

Valve Corporation

ValveValve SoftwareValve’s
It was developed by Valve Corporation and released on June 1, 2006.

Artificial intelligence

AIartificially intelligentA.I.
The game debuted new lighting and animation technologies, as well as AI sidekick enhancements.

Sidekick

side-kickkid sidekickalien sidekick
The game debuted new lighting and animation technologies, as well as AI sidekick enhancements.

Portal (video game)

PortalPortal: Still AliveAperture Science
Episode One is available as part of a bundle package known as The Orange Box, which also includes Half-Life 2, Episode Two, Team Fortress 2, and Portal.

Level (video gaming)

levelslevelmap
In Episode One players make their way through a linear series of levels and encounter various enemies and allies.

Tutorial

tutorialsinteractive tutorialvideo tutorial
Episode One integrates tutorial-like tasks into the story to familiarize the player with new gameplay mechanics without breaking immersion.

Head-up display

HUDheads-up displayheads up display
A head-up display appears on the screen to display the character's health, energy, and ammunition.

Crowbar (tool)

crowbarcrowbarsjemmy
Unlike in Half-Life 2, where Gordon's initial weapon is the crowbar, Gordon first acquires the Gravity Gun, which plays a crucial role in the game by allowing the player to use physics to manipulate objects at a distance in both combat and puzzle-solving scenarios.

Gravity gun

anti-gravity beam
Unlike in Half-Life 2, where Gordon's initial weapon is the crowbar, Gordon first acquires the Gravity Gun, which plays a crucial role in the game by allowing the player to use physics to manipulate objects at a distance in both combat and puzzle-solving scenarios.

Artificial intelligence in video games

artificial intelligenceAIcomputer-controlled
The AI for Alyx Vance, Gordon's companion, was designed specifically for co-operative play in Episode One to complement the player's abilities.