Half-Life 2: Episode Two

As with its predecessors, the game is played in the first person as series protagonist Gordon Freeman against transhuman troops, known as the Combine, and other hostile alien creatures. Levels are linear but add a more open environment, consisting of puzzles and first-person shooter game-play. Sequences involving vehicles are interspersed throughout the game, breaking up moments of combat.

One of the focal points of Episode Two was meant to be increased use of vehicles in open areas. However, the game retains its original linear style until the final battle.[1] Episode Two has more puzzles than Episode One, including the biggest physics puzzle yet in the series—a damaged bridge.[1] As in the previous two games, Episode Two features numerous "achievements" (similar to PlayStation 3's Trophies and Xbox Live's Achievements) for carrying out certain tasks. Some are essential to game progress, such as helping fight off an antlion invasion, or defeating the first Hunters. Others are optional tricks or feats the player can perform, such as killing a Combine soldier with their own grenade or running down a certain number of enemies with the car.[1]

Weapons

An in-game white-board depicting how the Magnusson Device functions

Episode Two features no additions to Gordon Freeman's weapons inventory. Instead, Valve chose to further explore uses for the gravity gun, with which the player can pick up and throw large objects. They introduced more varied Gravity Gun "ammunition", such as logs, flares, and half-height butane tanks, which are easier to aim than full-size fuel drums.[5]

Near the end of the game, the player uses "Magnusson Devices", which designer Dario Casali described as a "sticky bomb that you fire at a Strider's underbelly that will draw power from the Strider's internal power source". The player uses the gravity gun to attach the bombs to tripodal enemy Striders; the bombs detonate when fired upon with any other of the player's weapons, instantly destroying the target. The Hunter escorts prioritize them as targets, either destroying them in the player's grasp or shooting already-attached ones off.[5]

The Combine, a multidimensional empire which has enslaved Earth, has used the destruction of their Citadel to open a massive portal. This will allow them to summon reinforcements and destroy the Resistance. In the mountains outside City 17, Resistance fighters Gordon Freeman and Alyx Vance escape the wreckage of the train they used to escape the city. At an old transmission station, they establish communication with resistance scientists Dr. Kleiner and Eli Vance at the White Forest base. They learn that the Resistance may be able to close the portal using a copy of a Combine transmission Alyx is carrying.

At an abandoned mine, Alyx is critically wounded by a Combine Hunter. A vortigaunt leads them to an underground Resistance shelter. Gordon recovers larval extract from a nearby antlion colony, necessary for the vortigaunts to heal Alyx.[7] While the vortigaunts heal her, the mysterious G-Man contacts Gordon and hints at Alyx's importance to his plans; he revealed that he saved her life at the Black Mesa Research Facility despite objections from an unspecified third party. He instructs the unconscious Alyx to tell her father to "prepare for unforeseen consequences".

After Alyx recovers, she and Gordon proceed in an old Resistance vehicle, battling Combine troops and surviving an encounter with a Combine Advisor, a high-ranking Combine alien. At White Forest, they are reunited with Dr. Kleiner, Eli, and Alyx's pet robot Dog. Gordon is introduced to the egotistical Dr. Arne Magnusson. The scientists are preparing a rocket which they plan to use with the Combine portal code and the satellite array launched by Gordon at Black Mesa to close the Combine portal.[7]

After Gordon fends off a Combine attack on the base, Alyx gives Dr. Kleiner the message from Judith Mossman recovered at the Citadel. It contains footage and the coordinates of the Borealis, an Aperture Science research vessel which, Kleiner explains, vanished along with part of the surrounding drydock. Kleiner insists that it should be used to aid the Resistance effort, while Eli counters that it is impossible to control and must be destroyed. They agree that Alyx and Gordon will travel to the Borealis and attempt to find Mossman.

Alyx unconsciously delivers the G-Man's message to her father, troubling him. Alone with Gordon, Eli reveals that it was the G-Man who provided the test sample that caused the Black Mesa incident, and that he whispered the same warning to him as Gordon entered the test chamber. He promises to explain more after the portal is closed.[7]

While the scientists prepare the rocket, White Forest comes under attack by Combine. Gordon destroys the attackers using experimental explosive charges created by Magnusson. The scientists launch the rocket and close the portal, trapping Combine forces on Earth. Alyx and Gordon prepare to leave for the Borealis and Eli warns Gordon about the ship's "cargo". The three head to a hangar, intending to board a helicopter, but two Advisors burst into the hangar and restrain them. As Eli tries to free them, he is killed by one of the Advisors. As the second one prepares to kill Alyx, Dog bursts in and chases the Advisors away. Alyx, sobbing, clutches her father's body.[7]

Episode Two was developed simultaneously with Episode One by a team led by David Speyrer. This schedule of simultaneous development aided them in streamlining the story between the two games to create an immersive story. The technology used was the same for both games, allowing the development teams to quickly fix any technical problems that might arise from either game; this happened often because of the multi-platform release.[8]

An announcement was made on July 13, 2006 stating that Episode Two would be released on Xbox 360 and PlayStation 3 in addition to the PC, where previous iterations of the series separated.[9] It was originally rumored that Episode Two would be delayed until 2008. On June 14, 2007, however, Valve confirmed the release date for Episode Two to be October 9, 2007 for all announced platforms. Valve handled the development of the game for the PC and Xbox 360, while Electronic Arts British office in Chertsey worked on the PlayStation 3 version of the game.[10] It was announced on September 7, 2007 that the PlayStation 3 version of the game would be delayed because the development studio behind the game was in the United Kingdom, away from Valve's development team, and therefore lagged behind in its schedule. According to Valve's marketing director, Doug Lombardi, the Xbox 360, PlayStation 3, and PC versions would be identical in functionality and performance.[11]

An audio commentary is also featured, as in Episode One and Lost Coast.[12] Actor Tony Todd replaced Louis Gossett Jr. as the voice of the Vortigaunts.[13][14]

Half-Life 2: Episode 2 received an average score of 90.68% based on 22 reviews on the review aggregator GameRankings.[15] On Metacritic, it has an average score of 90 out of 100 based on 21 reviews, indicating "universal acclaim".[16]

Dan Adams of IGN rated the game 9.4 out of 10 and praised its improved visuals and expansive environments, but cited the short six-hour length as a drawback.[21] He said: "Any way you look at it, Episode Two stands out, even among the Half-Life series, as something special ... a burly experience packed into roughly six hours or so that offers up all the diversity, level design, and thoughtful gameplay we've known while making sure to propel the story forward and leave us wanting more."[21] Bit-tech.net awarded the game a 10 out of 10 score, citing approval of how the story turns and the introduction of side stories and new characters.[5] 1UP.com praised the game, noting that the game's "entire five-hour experience" was "vivid, emotionally engaging, and virtually unsurpassed."[17] PC Gamer UK also applauded Episode Two, noting it "is the most sumptuous chapter of the Half-Life saga, and by a country mile."[22] The New York Times enjoyed the gameplay, saying, "The battles in Episode 2 of Half-Life 2 often require as much ingenuity as they do fast reflexes."[23]

Computer and Video Games said that although the Source engine was "starting to look its age," the "wonderful art design and the odd bit of technical spit-shine ensure that Episode Two [...] doesn't lose any of its wow factor." They also noticed that the game "goes about fixing a lot of the niggling complaints we had about Episode One," especially applauding the open forests and rocky hills from Episode Two.[18]

The New York Times wrote that "while it sows a few seeds for the final episode of the trilogy, the game lacks the driving force of the previous episode".[23] GameSpy felt it was "a little more inconsistent than its predecessors," and that the opening segments were "arguably the weakest".[20]

Half-Life 2: Episode Three was scheduled for release by Christmas 2007,[24] but was canceled as Valve abandoned episodic development and were developing a new game engine, Source 2.[25] The next game in the series, Half-Life: Alyx, was released in 2020.[26]

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