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Aliens:pt

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Alien Concept Art
 


The Kharaa, often referred to as the Aliens, are a variety of extraterrestrial species assimilated by a mutagenic microorganism, known as the Bacterium, that renders them highly aggressive to any potential threat. While unified by the Bacterium, the Kharaa are more individualistic in combat and utilize guerrilla tactics against Marines. Since the previous conflicts spanning several years, the Kharaa are rapidly adapting to confrontation by the Frontiersmen, leading to development of new abilities and evolutions.

Introduction

Icon egg.gif Skulk kharaa main.PNG Gorge kharaa main.PNG Lerk kharaa main.png Fade kharaa main.png Onos kharaa main.png
Egg Skulk Gorge Lerk Fade Onos

Lifeforms

The Kharaa life cycle begins with the Egg, which is commonly found in large clusters around a Hive. The basic form of the Kharaa, the Skulk, hatches from an egg by biting through the membrane. It has been observed that when the threat to Kharaa territory becomes formidable, the aliens respond by evolving into different and stronger lifeforms as the situation demands. These lifeforms are classified as the Gorge, Lerk, Fade, and Onos, each with their own unique abilities and roles to fulfill.

Kharaa lifeforms are capable of communication through Hive Sight, an instinctive visual mechanism that allows them to identify friend from foe. The Kharaa also possess enhanced senses, more notably Alien Vision which grant perfect visibility in darkness.

Evolutions

Main article: Evolve Menu.

Evolutions passively enhance Kharaa lifeforms' defensive, deceptive, or reactive capabilities. Each evolution is free to evolve, and once researched by the Alien Commander from various evolution structures (Shell, Veil, and Spur), evolutions are made available in the Evolve Menu to all lifeforms.

The number of evolutions allowed per lifeform corresponds to the number of existing Hives. Additionally, only a single evolution from the associated Hive type is allowed per lifeform. If the evolution structures are destroyed, non-respawning players will retain their selected evolutions until death or evolution to different lifeforms.

Abilities

The Alien Commander can evolve additional abilities for all lifeforms. The first tier abilities (Leap, Bile Bomb, Spore, and Blink) are available for research once a second Hive is complete, and the second tier (Xenocide, Umbra, Vortex, and Stomp) requires the first tier to be unlocked and a third Hive complete.

Lifeform abilities are available to all players on research complete. If the second or third Hives are destroyed, non-respawning players will retain their lifeform abilities until death or evolution to different lifeforms.

Background

The Kharaa and the subspecies that make up its hostile presence on various human installations are the product of a previously unknown Bacteria-like growth that rapidly evolves and directly sets in motion the events that lead up to the hostile encounters with humans, and was accordingly termed by TSA scientists as Bacterium. The Bacterium is the basic building block of the Kharaa, and is responsible for the evolution and aggressive behavior of the Kharaa lifeforms. The creatures and structures that the Kharaa have at their disposal were previously not associated with the Bacterium whatsoever, but were separate species that were infested and incorporated into the Kharaa gene pool (including structures such as the Harvester). Once assimilated, these species would be regularly reproduced, albeit re-purposed to better suit their role in the Kharaa, such as carapace and the razor sharp blades that Skulks and Fades evolved.

The terminology for the aliens is still being developed. At the moment, we refer to the aliens, and their whole system of bacteria, lifeforms and growths, as the "Kharaa"; and the pre hive-stage presence as the "bacterium". The first TSA encounter with the aliens occurred aboard the Mongol's Sanjii mining facility. The tattered voice comm logs they extracted from the command network had one word that stood out, used again and again – "Kharaa!" "Kharaa!" Later, it was understood that this means "Watch out!" in Mongolian. By then, it had stuck.

The Kharaa began appearing on ships and bases throughout the Ariadne Arm a decade ago, slaughtering everyone on board. In almost every case the ship then wandered off course, and either destroyed itself by slipping into some gravity well (usually a planet or sun), or was tracked down and destroyed by the owners of the craft. Life support on bases and ships usually fails soon after the Kharaa take over, so even without military response, they don't last very long. However it is still unknown how their appearances on numerous ships and installations can be prevented, and until more conclusive information can be gathered by scientists, humans may never know how or why the Bacterium is capable of setting forth such a destructive onslaught without any early indication or warning.

Initially, the Bacterium only reproduces, slowly forming a mat, visible to the naked eye. All of these bacteria are in contact with one another, sharing data on their environment, and triggering responses to stimuli (like energy sources, or danger). They form a network that links all Kharaa lifeforms and structures, and is responsible for the phenomenon of Hive Sight. It isn't until the presence of larger lifeforms that the next stage of alien growth, the Hive, begins. The hive contains all the information and abilities necessary to set off a cascade of events that rapidly leads to full scale conflict. Like all the other Kharaa structures, TSA scientists speculate that hives are actually creatures that have been evolved into this form over an incredibly long time, and have observed that Kharaa structures in general tend to resemble aquatic forms of life, contrary to the Kharaa lifeforms that clearly originated from mammals and other similar creatures.

The bacterium seems capable of tapping a wide variety of energy sources. Heat and water are diverse enough, but it also finds the rich sludge used for nano-construction highly desirable. Fortunately the same safe guards that prevent marines from automatically accessing these stores thwart the Kharaa too. Unfortunately, the aliens seem quite prepared for this sort of obstacle, building Harvesters atop resource nodes, that draw the sludge up and digest it. These chambers appear to have once been a species, much like the hive. What these resource chambers could have been used for before the Kharaa encountered us is a perplexing mystery. But they convert the sludge into a usable form, just as our resource towers do. As a result, marines and Kharaa end up fighting for the same resources. Defending these resources is vital to the Kharaa, second only to protecting their hives.

To destroy the human presence, the bacterium employs lifeforms of its own. These are the creatures that slaughter the crew of the ship or base, and the same creatures that are waiting for the Frontiersmen when they arrive to take the ship or base back. Kharaa species have natural weaponry and cunning that make them a match for the best equipped and most highly trained forces the TSA can deploy. Hives continue to spawn lifeforms over the course of a conflict, replacing lost aliens. Destroying all hives is the only way to cease the everlasting onslaught.

Commander

Main article: Alien Commander.
See also: Resource Model.


The Alien Commander is a hive mind presence that governs over Kharaa territory and evolution; it aids in coordinating lifeforms, spreading the Kharaa infestation, and growing various organic structures. Any Kharaa lifeform can enter an unoccupied Hive to act as Alien Commander, which changes the player's perspective from first-person to an overview of the map; the Commander has a user-interface that includes a mini-map, commander menu, and resource counter, allowing him to perform research and upgrades for the Kharaa team. There can only be one Commander active at a time, and he may exit the occupied Hive to become his previous lifeform.

Exclusive to the Alien Commander are several abilities:

  • Foresight: Passively enhances awareness of the battlefield by revealing the presence of Frontiersmen Marines and structures as shadowy clouds, allowing the Alien Commander to hear the sounds produced by the units or buildings near the Commander cursor. However, Foresight only functions in locations that have been previously explored.
  • Nutrient Mist: Immensely increases Kharaa structure research and lifeform gestation rates for a set duration.
  • Infestation Spikes: Grows a spiky wall anywhere on infestation to impede Marine movement.

Unidades e Estruturas

Unidades de Suporte
Icon drifter.gif
Drifter
Estruturas do Gorge
Icon hydra.gif
Hydra Clog
Estruturas Básicas
Icon cyst active.gif
Icon harvester.gif
Icon whip.gif
Icon hive.gif
Cyst Harvester Whip Hive
Estruturas Avançadas (Arquétipos de Evoluções da Hive)
Icon crag.gif
Icon shade.gif
Shift.png
Shell.png
Veil.png
Spur.png
Crag Shade Shift Shell Veil Spur

Infestação

Main article: Infestation.

The Alien Commander can sprout any Kharaa structure directly from the infestation itself. Most Kharaa structures require infestation to survive, except the Cyst and Hive which produce the organic substance; the Kharaa gains several advantages provided by the infestation, such as preventing Frontiersmen structures from materializing on infested ground.

Arquétipos

Unlike the Frontiersmen, the Kharaa advance their technology by evolving their structures into archetypes, or specializations. An archetype locks a structure to a specific technology, therefore a new structure must be created to evolve other archetypes. If a specialized structure is destroyed, the evolved archetype is then lost and must be evolved again.

The Hive can be evolved to unlock a pair of support and evolution structures. There are three Hive archetypes, and each provides access to two structures in the Advanced Build menu: Crag Hive (Crag and Shell), Shade Hive (Shade and Veil), and Shift Hive (Shift and Spur). The Crag, Shade, and Shift structures possess a unique passive ability each and several triggered abilities, which can be unleashed by the Alien Commander to assist lifeforms nearby. The Shell, Veil, and Spur structures can each evolve into evolution variants, to unlock evolutions for lifeforms to select in the Evolve Menu.

Maturidade

Main article: Maturation.

All Kharaa structures will automatically undergo a growth process known as Maturation. A newly grown structure is referred to as Newborn, which has the lowest amount of health and armor compared to its Mature stage; as the structure ages, its health and armor will also increase. Once Mature status is reached, some structure can evolve an advanced ability using Team Resources.