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PhysiologyEdit
In appearance, a Vortigaunt is roughly humanoid with two legs and two arms, but has an additional arm protruding from its chest. This extra limb is a feature also found in other bipedal, sapient species from Xen, including the Alien Grunt and the Nihilanth. This similarity, along with other shared features such as red eyes and back-jointed legs, is strongly suggestive of a common ancestry with other intelligent Xen life forms. Apparently, this third arm is used for feeding, as both Vortigaunts and Alien Grunts are often seen bending over slain victims, feeding on it. Vortigaunts have mottled green-brown skin, sharp teeth, and clawed hands. Vortigaunts have a slightly hunched posture, and their faces are dominated by a large, single eye with a maroon sclera and a heterochromic red-yellow iris with a yellow pupil, surrounded by three smaller eyes. They also have a navel and four nipples, suggesting not only that Vortigaunts are placental (give live births), but also that they might be a species that is very similar to Earth mammals. Another interesting feature of the Vortigaunts is that they have no tongue or teeth on their lower jaw,[source?] yet they can speak English fluently, albeit with a strange accent and some sort of speech impediment when using S's and R's.[3][4][5]
Intelligence and cultureEdit
A Vortigaunt in the City 17 canals.
Vortigaunts are very intelligent and social creatures. Throughout the Half-Life series, they can be seen in pairs or groups, and are capable of developing intelligent strategies. When faced with a superior enemy, Vortigaunts will often run away, and if possible, group together with other Vortigaunts to form a stronger force.[6]
Vortigaunts "communicating" over a corpse in Black Mesa's Lambda Complex.
Brief glimpses into the Vortigaunt culture can be gained by occasional speeches given by them in Half-Life 2, and in scenes during the original Half-Life. In the original game, Vortigaunts were enslaved by the Nihilanth and used as workers and drone soldiers.[6] Based on comments by the All-Knowing Vortigaunt, it seems that the species has endured slavery for many generations ("We have endured these chafing bonds for eons, yet a single moment of further servitude seems intolerable!" as he says)[3] and enforced servitude appears to have formed the bedrock of Vortigaunt history and culture up to the events of the first Half-Life. In Half-Life 2, Vortigaunts make occasional references to their species' culture. Vortigaunts have many traditions, including an apparent oral tradition of passing down poetry and songs from generation to generation.[source?]
Communication and the "Vortessence"Edit
Vortigaunts possess their own native form of vocal communication, which, in Half-Life 2, is referred to as "flux shifting", and can be heard in rare instances when two Vortigaunts are engaged in conversation. This method of communication likely involves frequencies which are not discernible to the human ear.[source?] According to the Vortigaunts, flux shifting cannot be understood by "those whose Vortal inputs are impaired", which may suggest that other inaudible components are involved, perhaps explaining why it is incomprehensible to humans.[3] One of the most fantastic and enthralling examples of flux shifting is during the aftermath of the first Hunter attack in Half-Life 2: Episode Two, when the Vortigaunt that saves Alyx calls out over an immense distance to communicate with its kin, using two short but apparently highly descriptive calls.
By the beginning of Half-Life 2, Vortigaunts have learned to speak at least one human language, which, in the English language version of the game, is predictably English (in some international versions of Half-Life 2, Vortigaunts speak the appropriate language for the country of the game's release, i.e.: in the French language version of the game, the Vortigaunts speak French). However, the Vortigaunts' use of English is slightly strange, as they use archaic, even Shakespearean, words and grammatical structures which are largely obsolete amongst present-day English speakers. The Vortigaunts encountered in-game also tend to refer to characters by adding "the" before their name, such as "the Freeman" or "the Alyx Vance". This practice of adding definite articles before names is commonplace in some real-world languages, such as German ("Wo ist die Katja?", "Ich bin der Karl!", etc.). Thus, the argument stands that the Vortigaunts may have picked up this habit from learning a language like German and then simply kept the habit when they learned English. Additionally, City 17 and the other areas explored in Half-Life 2 and its episodes are widely speculated to be somewhere in eastern Europe, and German may have been spoken in or near it before the Seven Hour War and the subsequent Combine takeover. If true, this means that the Vortigaunts present in City 17 may have originally learned German, and then transferred the German naming system to their brand of English, making it a feature of their regional accent, and therefore might not be a universal feature of Vortigaunt English.
Vortigaunts believe in a binding life-force which they call the "Vortessence".[3] Due to their use of this force, which remains untapped by humans ("We are a tapestry woven of Vortessence. It is the same for you if only you would see it.", as said by the All-Knowing Vortigaunt), the Vortigaunt species can communicate with one another telepathically. They believe Vortessence is the fabric of the universe, made of "vortal cords", of which everything is woven (and therefore everything is connected). The Vortigaunts are able to read and control this force for their electrical powers, nearly hive-mind telepathy and, likely, their ability to take power from objects. They can use their powers coupled with "the extract" of Antlion larvae to bring the nearly dead back to life (however, it is shown in Episode Two that they cannot do this alone).[7]
It is also suggested that death is not permanent for a Vortigaunt, and that they might have the ability to "reincarnate" into a new body after death ("What seems to you a sacrifice is merely, to us, an oscillation. We do not fear the interval of darkness." as said by the All-Knowing Vortigaunt.
Behavior and skillsEdit
Half-LifeEdit
In Half-Life and its expansion packs, Vortigaunts are common enemies in both Black Mesa and Xen. While they usually attack aggressively, they often become timid when injured, preferring to run away rather than risk further combat and possible death. There is one area in Xen that houses a small number of peaceful Vortigaunts. However, if one is attacked they will become aggressive. Vortigaunts have two modes of attack: an energy attack in which they fire powerful green lightning-like energy beams that require a vulnerable period of "charging-up" before being unleashed, and when close to opponents, a claw attack. Significantly, in Half-Life all of the Vortigaunts wear green collars and wrist bands. Later events reveal these to be a means by which they are controlled by a remote master, the Nihilanth. Vortigaunts often act as support for Alien Grunts, making the Vortigaunts more likely to be able to use their attack, as the player is usually concentrating on killing the tougher Grunts. Throughout the game, the Vortigaunts can be heard taunting the player with what sounds like the word "die", and shouting a word that could be perceived as "Gordon" when the player approaches.
Half-Life 2 and its episodesEdit
In Half-Life 2, their electrical attack is far more devastating, as it tends to kill whatever it hits immediately and knocks the target back a considerable distance. Only objects with significant mass can resist being knocked back, such as the Strider (which appears to be fully immune to the beam) and Antlion Guards. These attacks occur twice during the single player game: when Gordon's view is restricted by rubble and when the Vortigaunt extracts Bugbait from the Antlion Guard. It is also suggested that Vortigaunts can siphon an opponent's life-force with their energy beam attack, as they are heard saying phrases like "Give over your essence!" or "Empower us!" during some of their attacks in Half-Life 2. In the Half-Life expansion Decay, the player plays as a Vortigaunt in a bonus mission, and the beam attack does indeed 'steal' life-force from enemies.
The beam attack is revealed fully in Episode Two, where a group of Vortigaunts use it to defend an underground outpost from a massive Antlion attack. It is shown to be powerful enough to kill Antlions and Zombies, and causes a shock wave strong enough to knock over other nearby foes. Freeman's Vortigaunt companion uses this ability to aid him in his attempt to raid an Antlion nest.
AppearancesEdit
Half-LifeEdit
Vortigaunts first appear in the chapter Anomalous Materials, during the Resonance Cascade. Several Vortigaunts teleport in from the ceiling of the test chamber, disappearing as they near the floor (one will remain if the crystal is removed from the Anti-Mass Spectrometer).[8] A few moments later, when Gordon Freeman is briefly teleported to Xen, he appears in a dark room, with four Vortigaunts standing in a half-circle around him. However, they do not attack him. Later on, in Unforeseen Consequences, they can be found as standard enemies, and remain so for the rest of the game.
Half-Life: Opposing ForceEdit
Vortigaunts first appear in the Introduction, when Adrian Shephard blacks out and regains consciousness. Later, in Welcome To Black Mesa, a Vortigaunt is found dead and on its back, with a Combat Knife stuck in it. Afterwards, Vortigaunts appear throughout the rest of the game as standard enemies.
Half-Life: Blue ShiftEdit
Vortigaunts are relatively common enemies in Blue Shift and Barney Calhoun regularly encounters them as he fights to escape Black Mesa.
Half-Life: DecayEdit
In the official co-op expansion Half-Life: Decay, players who manage to obtain an A rank on all of the regular missions may unlock a bonus mission titled Xen Attacks, where both players play as Vortigaunts. Although short on story, the mission gives some unique insight into the Vortigaunts' role in the Black Mesa Incident. The players control "Drone Subjects" X-8973 and R-4913, two Vortigaunts sent to Earth by the Nihilanth. Both Vortigaunts are able to regain health by damaging objects or enemies.
Half-Life 2Edit
An enslaved Vortigaunt janitor in Half-Life 2.
In Half-Life 2, Gordon Freeman meets up with the Vortigaunts again. This time, however, they are eager to assist in overthrowing the Combine. In the time between the two games, the Vortigaunts have been freed from their former master, and most remaining on Earth have joined the human Resistance against the Combine. The game also reveals that the Vortigaunts are capable of using their electrical attack productively, in the form of a blue energy stream that can recharge batteries, power electronic circuits, fuse objects together and even power up Gordon's HEV suit. The Vortigaunts credit Gordon Freeman with their freedom, and hold him in high esteem as "The Freeman" (as it was Freeman who slew the Nihilanth and freed the Vortigaunts).
However, not all Vortigaunts have been freed. In the first chapter of Half-Life 2, Point Insertion, it is possible to catch a brief glimpse of a Vortigaunt working under the Combine. Wearing a collar and armbands similar to those worn in Half-Life (with an additional band around the waist), the Vortigaunt is shown slowly and meticulously using a push-broom to sweep dirt and garbage in the City 17 Trainstation while being watched by a Metrocop. When exploring Nova Prospekt, the player comes across a dead Vortigaunt, wearing collar and armbands, sitting in a restrained chair. Interestingly, this occurs in block A2 about which Overwatch had directed shortly before: "De-service all political conscripts in block A2 - prohibit external contact." It appears that the Vortigaunt had died during electrical torture by the Combine, which would explain Alyx Vance's comments that the Resistance's only knowledge of Nova Prospekt is through telepathic communications from Vortigaunts taken there for torture or interrogation.[9]
Half-Life 2: Episode OneEdit
A group of Vortigaunts hold back the G-Man at the start of Episode One. The scene mirrors the Vortigaunts seen during the Resonance Cascade in Half-Life.
In the beginning of Half-Life 2: Episode One, a group of Vortigaunts free Gordon from the G-Man and save Alyx from certain death after the explosion of the Citadel's Dark Fusion Reactor, teleporting both of them to the relative safety of the center of City 17, just outside the Citadel - revealing the Vortigaunts may be more powerful than previously speculated, even to the point of challenging the G-Man.[10]
The purple color of the Vortigaunts at the beginning appears to be a side effect of the filters and lighting used in that scene. The conclusion that is best supported is that the Vortigaunts are purple-colored because they are operating on some other plane of existence.[source?] The supporting evidence is that during the explosion where Alyx is rescued, the Vortigaunts appear purple-colored and semi-translucent although the rest of the scene is unfiltered and lit with realistic lighting.
Half-Life 2: Episode TwoEdit
In Episode Two, Vortigaunts look smoother and shinier.
Vortigaunts play a much larger role in Half-Life 2: Episode Two. After a Hunter mortally wounds Alyx and traps Freeman under a collapsed building, a Vortigaunt saves the former from being eaten by an Antlion. The Vortigaunt then stabilizes Alyx's condition and carries her to an underground Resistance outpost, where, with the help of three more Vortigaunts, they beat back a heavy Antlion incursion. A Vortigaunt then accompanies Freeman in a quest to harvest the miraculous larval extract of the Antlions to save Alyx's life. The Vortigaunt proves an valuable companion; it kick-starts generators by giving them an electric jolt, its lightning attack damages and knocks over nearby Antlions, and it also charges up Freeman's HEV suit on occasion. Eventually Freeman is able to access the Nectarium, where the Vortigaunt harvests a small quantity of the larval extract. Both Gordon and the Vortigaunt travel back to the outpost and begin a ritual to heal Alyx.
It is at this point the G-Man reestablishes contact with Freeman. He states "...but I had to wait until your... 'friends' [laughs slightly] were otherwise occupied...", suggesting up until then the Vortigaunts had somehow been keeping the G-Man at bay. He also refers to Half Life when he says "There was a time when their only experience with humanity was a crowbar coming at them down a steel corridor" The Vortigaunts are unaware of the intrusion, and they never mention the G-Man, nor the service they rendered Freeman and Alyx at the beginning of Episode One.
The Vortigaunt then accompanies Freeman and Alyx a little further on before heading back, mentioning that he and his cohorts are occupied with searching for Combine Advisor pods. Another Vortigaunt, given the name Uriah by Arne Magnusson, aids Freeman briefly later on in the Episode at White Forest.
The appearance of Vortigaunts changed slightly in Episode Two; they have a less scaly appearance, looking much smoother and slimmer than before and with larger eyes, similar to a slug - a nickname given to them by one of the Resistance fighters. A later patch for Half-Life 2 changed their look to match Episode Two's Vortigaunts to maintain a consistent physical appearance.
For gameplay purposes, if Gordon strays too far from Alyx during the course of Episode Two to some specific places where she cannot reach, the screen briefly shows the text 'The Freeman must proceed with the Alyx Vance, else our struggle is doomed to failure. Those who do not learn from their mistakes are doomed to an endless Vortal Loop.' Then the game reloads (Referencing that those who continue to leave Alyx will keep reloading the game).
In appearance, a Vortigaunt is roughly humanoid with two legs and two arms, but has an additional arm protruding from its chest. This extra limb is a feature also found in other bipedal, sapient species from Xen, including the Alien Grunt and the Nihilanth. This similarity, along with other shared features such as red eyes and back-jointed legs, is strongly suggestive of a common ancestry with other intelligent Xen life forms. Apparently, this third arm is used for feeding, as both Vortigaunts and Alien Grunts are often seen bending over slain victims, feeding on it. Vortigaunts have mottled green-brown skin, sharp teeth, and clawed hands. Vortigaunts have a slightly hunched posture, and their faces are dominated by a large, single eye with a maroon sclera and a heterochromic red-yellow iris with a yellow pupil, surrounded by three smaller eyes. They also have a navel and four nipples, suggesting not only that Vortigaunts are placental (give live births), but also that they might be a species that is very similar to Earth mammals. Another interesting feature of the Vortigaunts is that they have no tongue or teeth on their lower jaw,[source?] yet they can speak English fluently, albeit with a strange accent and some sort of speech impediment when using S's and R's.[3][4][5]
Intelligence and cultureEdit
A Vortigaunt in the City 17 canals.
Vortigaunts are very intelligent and social creatures. Throughout the Half-Life series, they can be seen in pairs or groups, and are capable of developing intelligent strategies. When faced with a superior enemy, Vortigaunts will often run away, and if possible, group together with other Vortigaunts to form a stronger force.[6]
Vortigaunts "communicating" over a corpse in Black Mesa's Lambda Complex.
Brief glimpses into the Vortigaunt culture can be gained by occasional speeches given by them in Half-Life 2, and in scenes during the original Half-Life. In the original game, Vortigaunts were enslaved by the Nihilanth and used as workers and drone soldiers.[6] Based on comments by the All-Knowing Vortigaunt, it seems that the species has endured slavery for many generations ("We have endured these chafing bonds for eons, yet a single moment of further servitude seems intolerable!" as he says)[3] and enforced servitude appears to have formed the bedrock of Vortigaunt history and culture up to the events of the first Half-Life. In Half-Life 2, Vortigaunts make occasional references to their species' culture. Vortigaunts have many traditions, including an apparent oral tradition of passing down poetry and songs from generation to generation.[source?]
Communication and the "Vortessence"Edit
Vortigaunts possess their own native form of vocal communication, which, in Half-Life 2, is referred to as "flux shifting", and can be heard in rare instances when two Vortigaunts are engaged in conversation. This method of communication likely involves frequencies which are not discernible to the human ear.[source?] According to the Vortigaunts, flux shifting cannot be understood by "those whose Vortal inputs are impaired", which may suggest that other inaudible components are involved, perhaps explaining why it is incomprehensible to humans.[3] One of the most fantastic and enthralling examples of flux shifting is during the aftermath of the first Hunter attack in Half-Life 2: Episode Two, when the Vortigaunt that saves Alyx calls out over an immense distance to communicate with its kin, using two short but apparently highly descriptive calls.
By the beginning of Half-Life 2, Vortigaunts have learned to speak at least one human language, which, in the English language version of the game, is predictably English (in some international versions of Half-Life 2, Vortigaunts speak the appropriate language for the country of the game's release, i.e.: in the French language version of the game, the Vortigaunts speak French). However, the Vortigaunts' use of English is slightly strange, as they use archaic, even Shakespearean, words and grammatical structures which are largely obsolete amongst present-day English speakers. The Vortigaunts encountered in-game also tend to refer to characters by adding "the" before their name, such as "the Freeman" or "the Alyx Vance". This practice of adding definite articles before names is commonplace in some real-world languages, such as German ("Wo ist die Katja?", "Ich bin der Karl!", etc.). Thus, the argument stands that the Vortigaunts may have picked up this habit from learning a language like German and then simply kept the habit when they learned English. Additionally, City 17 and the other areas explored in Half-Life 2 and its episodes are widely speculated to be somewhere in eastern Europe, and German may have been spoken in or near it before the Seven Hour War and the subsequent Combine takeover. If true, this means that the Vortigaunts present in City 17 may have originally learned German, and then transferred the German naming system to their brand of English, making it a feature of their regional accent, and therefore might not be a universal feature of Vortigaunt English.
Vortigaunts believe in a binding life-force which they call the "Vortessence".[3] Due to their use of this force, which remains untapped by humans ("We are a tapestry woven of Vortessence. It is the same for you if only you would see it.", as said by the All-Knowing Vortigaunt), the Vortigaunt species can communicate with one another telepathically. They believe Vortessence is the fabric of the universe, made of "vortal cords", of which everything is woven (and therefore everything is connected). The Vortigaunts are able to read and control this force for their electrical powers, nearly hive-mind telepathy and, likely, their ability to take power from objects. They can use their powers coupled with "the extract" of Antlion larvae to bring the nearly dead back to life (however, it is shown in Episode Two that they cannot do this alone).[7]
It is also suggested that death is not permanent for a Vortigaunt, and that they might have the ability to "reincarnate" into a new body after death ("What seems to you a sacrifice is merely, to us, an oscillation. We do not fear the interval of darkness." as said by the All-Knowing Vortigaunt.
Behavior and skillsEdit
Half-LifeEdit
In Half-Life and its expansion packs, Vortigaunts are common enemies in both Black Mesa and Xen. While they usually attack aggressively, they often become timid when injured, preferring to run away rather than risk further combat and possible death. There is one area in Xen that houses a small number of peaceful Vortigaunts. However, if one is attacked they will become aggressive. Vortigaunts have two modes of attack: an energy attack in which they fire powerful green lightning-like energy beams that require a vulnerable period of "charging-up" before being unleashed, and when close to opponents, a claw attack. Significantly, in Half-Life all of the Vortigaunts wear green collars and wrist bands. Later events reveal these to be a means by which they are controlled by a remote master, the Nihilanth. Vortigaunts often act as support for Alien Grunts, making the Vortigaunts more likely to be able to use their attack, as the player is usually concentrating on killing the tougher Grunts. Throughout the game, the Vortigaunts can be heard taunting the player with what sounds like the word "die", and shouting a word that could be perceived as "Gordon" when the player approaches.
Half-Life 2 and its episodesEdit
In Half-Life 2, their electrical attack is far more devastating, as it tends to kill whatever it hits immediately and knocks the target back a considerable distance. Only objects with significant mass can resist being knocked back, such as the Strider (which appears to be fully immune to the beam) and Antlion Guards. These attacks occur twice during the single player game: when Gordon's view is restricted by rubble and when the Vortigaunt extracts Bugbait from the Antlion Guard. It is also suggested that Vortigaunts can siphon an opponent's life-force with their energy beam attack, as they are heard saying phrases like "Give over your essence!" or "Empower us!" during some of their attacks in Half-Life 2. In the Half-Life expansion Decay, the player plays as a Vortigaunt in a bonus mission, and the beam attack does indeed 'steal' life-force from enemies.
The beam attack is revealed fully in Episode Two, where a group of Vortigaunts use it to defend an underground outpost from a massive Antlion attack. It is shown to be powerful enough to kill Antlions and Zombies, and causes a shock wave strong enough to knock over other nearby foes. Freeman's Vortigaunt companion uses this ability to aid him in his attempt to raid an Antlion nest.
AppearancesEdit
Half-LifeEdit
Vortigaunts first appear in the chapter Anomalous Materials, during the Resonance Cascade. Several Vortigaunts teleport in from the ceiling of the test chamber, disappearing as they near the floor (one will remain if the crystal is removed from the Anti-Mass Spectrometer).[8] A few moments later, when Gordon Freeman is briefly teleported to Xen, he appears in a dark room, with four Vortigaunts standing in a half-circle around him. However, they do not attack him. Later on, in Unforeseen Consequences, they can be found as standard enemies, and remain so for the rest of the game.
Half-Life: Opposing ForceEdit
Vortigaunts first appear in the Introduction, when Adrian Shephard blacks out and regains consciousness. Later, in Welcome To Black Mesa, a Vortigaunt is found dead and on its back, with a Combat Knife stuck in it. Afterwards, Vortigaunts appear throughout the rest of the game as standard enemies.
Half-Life: Blue ShiftEdit
Vortigaunts are relatively common enemies in Blue Shift and Barney Calhoun regularly encounters them as he fights to escape Black Mesa.
Half-Life: DecayEdit
In the official co-op expansion Half-Life: Decay, players who manage to obtain an A rank on all of the regular missions may unlock a bonus mission titled Xen Attacks, where both players play as Vortigaunts. Although short on story, the mission gives some unique insight into the Vortigaunts' role in the Black Mesa Incident. The players control "Drone Subjects" X-8973 and R-4913, two Vortigaunts sent to Earth by the Nihilanth. Both Vortigaunts are able to regain health by damaging objects or enemies.
Half-Life 2Edit
An enslaved Vortigaunt janitor in Half-Life 2.
In Half-Life 2, Gordon Freeman meets up with the Vortigaunts again. This time, however, they are eager to assist in overthrowing the Combine. In the time between the two games, the Vortigaunts have been freed from their former master, and most remaining on Earth have joined the human Resistance against the Combine. The game also reveals that the Vortigaunts are capable of using their electrical attack productively, in the form of a blue energy stream that can recharge batteries, power electronic circuits, fuse objects together and even power up Gordon's HEV suit. The Vortigaunts credit Gordon Freeman with their freedom, and hold him in high esteem as "The Freeman" (as it was Freeman who slew the Nihilanth and freed the Vortigaunts).
However, not all Vortigaunts have been freed. In the first chapter of Half-Life 2, Point Insertion, it is possible to catch a brief glimpse of a Vortigaunt working under the Combine. Wearing a collar and armbands similar to those worn in Half-Life (with an additional band around the waist), the Vortigaunt is shown slowly and meticulously using a push-broom to sweep dirt and garbage in the City 17 Trainstation while being watched by a Metrocop. When exploring Nova Prospekt, the player comes across a dead Vortigaunt, wearing collar and armbands, sitting in a restrained chair. Interestingly, this occurs in block A2 about which Overwatch had directed shortly before: "De-service all political conscripts in block A2 - prohibit external contact." It appears that the Vortigaunt had died during electrical torture by the Combine, which would explain Alyx Vance's comments that the Resistance's only knowledge of Nova Prospekt is through telepathic communications from Vortigaunts taken there for torture or interrogation.[9]
Half-Life 2: Episode OneEdit
A group of Vortigaunts hold back the G-Man at the start of Episode One. The scene mirrors the Vortigaunts seen during the Resonance Cascade in Half-Life.
In the beginning of Half-Life 2: Episode One, a group of Vortigaunts free Gordon from the G-Man and save Alyx from certain death after the explosion of the Citadel's Dark Fusion Reactor, teleporting both of them to the relative safety of the center of City 17, just outside the Citadel - revealing the Vortigaunts may be more powerful than previously speculated, even to the point of challenging the G-Man.[10]
The purple color of the Vortigaunts at the beginning appears to be a side effect of the filters and lighting used in that scene. The conclusion that is best supported is that the Vortigaunts are purple-colored because they are operating on some other plane of existence.[source?] The supporting evidence is that during the explosion where Alyx is rescued, the Vortigaunts appear purple-colored and semi-translucent although the rest of the scene is unfiltered and lit with realistic lighting.
Half-Life 2: Episode TwoEdit
In Episode Two, Vortigaunts look smoother and shinier.
Vortigaunts play a much larger role in Half-Life 2: Episode Two. After a Hunter mortally wounds Alyx and traps Freeman under a collapsed building, a Vortigaunt saves the former from being eaten by an Antlion. The Vortigaunt then stabilizes Alyx's condition and carries her to an underground Resistance outpost, where, with the help of three more Vortigaunts, they beat back a heavy Antlion incursion. A Vortigaunt then accompanies Freeman in a quest to harvest the miraculous larval extract of the Antlions to save Alyx's life. The Vortigaunt proves an valuable companion; it kick-starts generators by giving them an electric jolt, its lightning attack damages and knocks over nearby Antlions, and it also charges up Freeman's HEV suit on occasion. Eventually Freeman is able to access the Nectarium, where the Vortigaunt harvests a small quantity of the larval extract. Both Gordon and the Vortigaunt travel back to the outpost and begin a ritual to heal Alyx.
It is at this point the G-Man reestablishes contact with Freeman. He states "...but I had to wait until your... 'friends' [laughs slightly] were otherwise occupied...", suggesting up until then the Vortigaunts had somehow been keeping the G-Man at bay. He also refers to Half Life when he says "There was a time when their only experience with humanity was a crowbar coming at them down a steel corridor" The Vortigaunts are unaware of the intrusion, and they never mention the G-Man, nor the service they rendered Freeman and Alyx at the beginning of Episode One.
The Vortigaunt then accompanies Freeman and Alyx a little further on before heading back, mentioning that he and his cohorts are occupied with searching for Combine Advisor pods. Another Vortigaunt, given the name Uriah by Arne Magnusson, aids Freeman briefly later on in the Episode at White Forest.
The appearance of Vortigaunts changed slightly in Episode Two; they have a less scaly appearance, looking much smoother and slimmer than before and with larger eyes, similar to a slug - a nickname given to them by one of the Resistance fighters. A later patch for Half-Life 2 changed their look to match Episode Two's Vortigaunts to maintain a consistent physical appearance.
For gameplay purposes, if Gordon strays too far from Alyx during the course of Episode Two to some specific places where she cannot reach, the screen briefly shows the text 'The Freeman must proceed with the Alyx Vance, else our struggle is doomed to failure. Those who do not learn from their mistakes are doomed to an endless Vortal Loop.' Then the game reloads (Referencing that those who continue to leave Alyx will keep reloading the game).
