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Up to date as of February 01, 2010

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This is the Forerunner disambiguation page.

It serves to clarify the difference between several closely named or closely related articles.
A = Appearances · I = Images · G = Gallery · F = Fan Art · Q = Quotes

This article uses material from the "Forerunner" article on the DC Comics wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.


Up to date as of February 08, 2010

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Biological information


Physical description

Tall, thin, with very humanoid features

Military and Political information

Forerunner Empire

Notable Individuals
Other Nomenclature
  • The Gods
  • Holy Ones
  • The Ancients
"After exhausting every other strategic option, my creators activated the rings. They, and all additional sentient life within three radii of the galactic center died, as planned."
343 Guilty Spark, explaining the fate of the Forerunner.

The Forerunner is the translated name for the ancient race of enlightened beings that were the creators and builders of the Halos, the Ark, the Shield Worlds, Onyx, along with the artifacts that were found on the planets Reach, Earth, Sigma Octanus IV, Harvest, and Arcadia. All that is known about the Forerunner has been gleaned from these various artifacts. The predecessors of the Forerunner are thought to be another alien race, known as the Precursors. The alien faction known as the Covenant worshiped the Forerunners as gods, deriving much of their technology from Forerunner artifacts found throughout the galaxy, and believing any who tampered or destroyed these relics to be heretics.[1] The Forerunners themselves were a bipedal species with five-fingered hands[2], besides this not much is known about their anatomy.


Known History

"The Forerunners were a wise, highly intelligent, noble people and with a belief in justice, in peace, they bravely faced the adversary. They sought to sterilize it."
Cortana on the Forerunners.
A group of Forerunners in combat skin discussing the Flood threat.

The Forerunners were a very advanced civilization, coming to power after the disappearance of another race, known to them as the Precursors. The Forerunners reached their peak before activating the Halo Array around 100,000 years ago, exactly as planned.[3][4]

Being the only known race ever to achieve Tier 1 technology based on the Technological Achievement Tiers measurement, they were only superseded by the mysterious Precursors at Tier 0; evidence of which has been found on various planets. The fact that the Halos were scattered around the galaxy also hints at the possibility that the Forerunner Empire covered most, if not all, of the galaxy. They even went as far as creating a Mantle to protect all life in the galaxy, believing it was their role to protect due to them being so advanced. Later in their history, a Forerunner survey team came into contact with an extra-galactic parasite known as the Flood on the planet G 617 g (details of this first contact are unavailable). After this first contact, the Forerunner realized the great danger that the Flood posed to the entire galaxy and attempted to contain them. The attempt to contain the Flood was a failure, primarily because in the beginning, they treated the Flood as a disease, attempting to contain it and quarantine it, instead of treating it as a severe threat and declaring an all out war on the Flood. They did not start war until it was far too late. [5]

When the Forerunners were unable to contain the Flood outbreak, war between the two factions broke loose. During the 300 years of conflict, the Forerunner studied the Flood in labs such as the gas mine located in the atmosphere of Threshold, looking for some sort of weakness. Eventually they created the Halo Array, a weapon of last resort designed to starve the Flood to death by killing all sentient life with enough biomass to sustain them. [6]

At first, the Forerunners were reluctant to use the Array, believing that they should continue to embrace the Mantle and to protect life not destroy it. The Gravemind managed to convince a Contender-class AI, Mendicant Bias, to unite with the Flood. Mendicant Bias soon led his massive fleet in an attack on the "Maginot Line", the final barrier between what the Forerunners could protect and what they had to let go. The Forerunners were given no choice but to activate the Halo rings, indexing most intelligent lifeforms such as Humans, Sangheili and so on, killing themselves and all life of sufficient biomass and cognitive ability in the Milky Way, with the exception of those species safely placed on the Ark.

Forerunner Technology

A Sentinel and a Monitor. Both are Forerunner creations with specific tasks.

Forerunner technology was highly cultivated and progressive. They managed to create solidified surfaces out of meticulous energy, construct a Halo-wide teleportation grid and create and utilize a number of other advanced machinery. The Halo Rings themselves, the Micro-Dyson Mark II sphere, which is connected through a portal to the shield world Onyx, and the Ark (Installation 00) are, above all others, the most significant pieces of Forerunner technology. The planet Onyx in particular demonstrates both their ability for engineering on a grand scale, and their near transcendent grasp of Slipspace technology. It is unknown how much of their technology is based on the technology of the Precursors if any.

Covenant Luminaries (which are actually stolen Forerunner equipment designed to detect other Forerunner objects) can detect Humans, previously mislabeled as "Forerunner Artifacts", leading to the initial Human-Covenant contact which sparked a seemingly endless war. Ironically, the Covenant worships the Forerunners but fight Humans, who have been confirmed as Forerunner descendants by the Oracle. The idea of living Forerunners in the Galaxy (described by the Oracle as Reclaimers) terrified the Covenant leadership. In an attempt to protect their religion the Prophets of Truth, Regret and Mercy concealed the true identity of Humanity to the rest of the Covenant and deemed them as heretics, thus sparking the Human-Covenant War.

Huragok are the only known Forerunner creation to be both non-robotic and to join the Covenant.

Forerunners have the technology to reproduce entire individuals from encoded DNA/RNA/silicon samples in data streams. This was mentioned in the Bestiarum: "DNA/RNA/Silicon samples are encoded in this data stream. Reproduction of individuals for analysis is prohibited by this facility."

The Forerunners appeared to be genetically related to the humans, which can be corroborated by the Iris Server-05 message about the humans providing "answers" to the Forerunner's own "mysteries", and Mendicant Bias's own declaration in Halo: Contact Harvest. This also explains why the Prophets ordered the Covenant to exterminate humanity, knowing that they are the Forerunner's designated heirs and would undermine their power. Halo 3 and the Halo Encyclopedia provided further evidence of this as well.



A group of Forerunner soldiers firing light-based weaponry.

Forerunner constructs and sentries use a broad variety of weapons, typically high-energy powered beams. These weapons proved to be very effective when battling the Flood, burning Flood forms to the point that they cannot be revived by their compatriots. The Forerunners installed and constructed these intricate beam weapons inside their paradigm Arrays, allowing them to build an army of machines to battle the Flood without sending any Forerunner to the front lines. Forerunners evidently made active use of plasma weaponry as well; the Covenant's own weapons and technology are solely based on Forerunner artifacts.

The Sentinels wield orange-colored directed energy beams, used primarily for fighting the Flood. Sentinel Majors however, have a more powerful and accurate version of the beam, which sports superior energy output, at the cost of overheating issues. These more advanced energy beams are colored blue. All variants of these Sentinel Beams can be wielded by Humans and certain Covenant races.

Meanwhile, Enforcers are equipped with multiple packs of small grenades, or mortar-like explosives launched over the top of their shield. The Enforcer also boasts a pair of Pulse Beams, which fire clusters of smaller red Needler-like projectiles or bolts of energy at an incredibly high rate of fire. These pulse beams are primarily used against infantry at close range. These mammoth constructs also seem capable of lifting even tanks, using some sort of magnetic or anti-gravity grapple, before crushing the target between their massive 'arms'. The Constructors' repair beam can also be considered a weapon, but with minimal damage output.

The Sentinels of Onyx had significantly more powerful weaponry. They were described to be a sphere surrounded by three floating "booms", or small pieces of armor that possessed powerful energy shields which would suddenly "pop" into place in order to deflect objects moving at high velocities.[7] Their shields are not activated by slow-moving objects, however - Team Saber used this to their advantage to destroy one of the Sentinels with rocks. Their energy weapons are described as a single, slow-charging, golden beam that could melt straight through the SPI armor of the Spartan-IIIs. SPARTAN-058 had also noted that one blast from these weapons was enough to drain the shields of her MJOLNIR Mk V armor. The Onyx Sentinels also have the ability to combine for different purposes, such as exponentially increasing their combat capabilities, or for large-scale excavation. One formation of these combined Sentinels was able to easily destroy two Covenant destroyers. However, it should be noted that the second Covenant Destroyer was caught off guard after a Slipspace jump, and the first one had its energy shields down.

The Forerunners also constructed Automated Turrets that fire blue beams similar to those of sentinel majors. These turrets themselves resemble stripped-down sentinels, and hover in mid-air, tracking enemy targets, but are otherwise immobile.

In Halo 3, it seemed that even the Monitors had the ability to defend themselves against the Flood using a focused beam similar to the Sentinel's beam, but much more powerful. 343 Guilty Spark displayed this ability in Floodgate and Halo[8]. The weapon was capable of draining the shields of a Spartan-II in one blast and mortally wounding Sergeant Major Avery Johnson. It is also quite odd and puzzling as to why 2401 Penitent Tangent didn't use this ability against the Gravemind in Halo 2. It is assumed that the Gravemind is likely to have damaged 2401 Penitent Tangent when he captured the Monitor, disabling its beam weaponry. It could simply be that it was not equipped with one, although it is possible the Monitor attacked the Gravemind every chance he got, explaining his red "eye".

Forerunners themselves used advanced exoskeletons called combat skins and wielded an as yet unnamed beam weapon.[9]

Art and Architecture

The Library, a classic example of Forerunner architecture.

Forerunner architecture is noted mainly for being large-scale and geometric in style, with a triangular theme being the most commonly observed design. The Forerunners had a habit of creating natural habitats, such as those of the Halo rings, which tend to be very elaborate, with numerous extrapolations of the basic design of a construct appearing to be purely decorative. In addition, the structures were engineered to compliment the natural landscape, as opposed to the modern idea of replacing it. That said, their distinctive beauty are not restricted to Halo Array network. The Aztec-esque stones of Cote D'Azur, the arches and weathered inscriptions of Sigma Octanus IV, the intricate caverns and three-kilometer holographic dome beneath ONI's Reach complex, the ancient stepping-stones of the Grunt's homeworld, and the Forerunner City discovered in the depths of the human-inhabited Onyx, all display the Forerunner's innovative architectures. Most Forerunner architecture is constructed with a special type of metal that resists deterioration, bullets, plasma bolts and fire, as evidenced by Forerunner structures standing in pristine condition 100,000-150,500 years after they were built. However their resistance to plasma fire is limited; in Halo: Ghosts of Onyx the Elites blasted a hole in a Forerunner wall with plasma weapons. In Halo 2, Sgt. Avery Johnson destroyed the door to the control room of Delta Halo with a Scarab. Other structures are constructed out of traditional materials, such as chalcedonic quartz, which does not preserve nearly so well. These structures employ complex geometric shapes that appear to operate in dimensions higher than human understanding can comprehend.[7] The Forerunners also decorated the interiors of their structures with a complex web of engraved straight lines and applied decorative touches and designs to nearly everything that they built, from structures to weapons. Even the Sentinel robotic drones possess small holographic Forerunner script around their "eyes".

Forerunner architecture distinguishes itself from Covenant structures in that they incorporate the use of angles, usually at either extremely sharp degrees (as the Forerunner buildings are usually triangular), or at forty-five degree angles, most notably seen in Halo: Combat Evolved . Originally, the ideas and concepts on Forerunner structures and technology was that it would be sleek and curved to give it an advanced feel. However, Bungie wanted the structures to feel as if they could stand the test of time and redesigned them to be solid and monolithic. The smooth, near-organic design would later be adopted by the Covenant in their architecture, although they did not adopt the Forerunner tradition of decorating their structures with glyphs. In Halo Wars the Forerunner counting system is used to open and close portals on the last level.

Forerunner Stellar Engineering

Main article: Stellar Engineering

While the Forerunners' architectural and technological prowess is legendary among the Covenant and UNSC, their masterpieces also extended to the fields of stellar engineering. At least three Forerunner sites, the Shield World[7] Onyx, the Ark[10], and the Micro Dyson Sphere that holds the Apex, made use of suns where none should exist. The Shield World existed permanently in Slipspace, where solar systems outside of a Dyson Sphere cannot exist, and the Ark was located far outside of the galaxy where galactic material would have been insufficient to form the sun that illuminates the Ark. The sun at the center of the Dyson Sphere where the Apex was housed was abnormally small, in order to accommodate the planet-sized Dyson Sphere. Whether these suns are artificially engineered or simply moved from another star system by the Forerunner is unknown: either would have been an enormous technological achievement. Another known Shield World is the planet discovered by the Spirit of Fire. This world had a outer crust like Onyx, but its inner Dyson sphere was accessed through a long narrow tunnel hidden under one of the planets oceans. Once through the tunnel, the Spirit of Fire had to pass through several "cleansing rings" in order to make it to the center of the planet. This Dyson sphere, unlike the Onyx Dyson sphere, was not separated in slipspace but was actually constructed on what appeared to be hollowed out inside of the planet. This sphere seemed to have had an artificially created sun like the one on the Ark.

The Ark is confirmed to be artificial, due to its unnatural "flower head" shape. It has been theorized to be an Alderson Disk. It is likewise unknown if these are the only stellar engineering achievements the Forerunners made. However, it is clear that manipulation of slipspace allowed the Forerunners to transport and position these structures throughout the galaxy.

Forerunner Glyphs and Symbols

An image of the Iris Forerunner icon. It is the zero of Forerunner Numbers.
Main article: List of Forerunner Symbols
This section requires expansion.

The Forerunner glyphs seem to be based on a series of circular, complex shapes. The glyphs have been inscribed almost everywhere, from different areas of Earth, to the Halos.

Forerunner in Covenant Religions

The Covenant venerate the Forerunners as gods and referred to them as the Ancients, believing that the Halo Array elevated the Forerunner to godhood instead of killing them. As such, they have appropriated many Forerunner technologies and artifacts, and such searching led to the Covenant coming to Harvest in the first place, therefore beginning the Human-Covenant war. Also they dedicated a significant amount of time to the search for other "holy relics" such as the Halo Installations, believing that they can follow the Forerunners into godhood. This is referred to as the "Great Journey" by the Covenant races. The Covenant believe that the Forerunner's ascension to godhood was finalized after the rings were fired.


  • The Forerunners seem to be similar to the Silver Race of Greek mythology.
  • Similarly, the Forerunners are very similar to the Ancients of the Stargate television series in that they both built technologically advanced rings as well as galactic scale weaponry, and are thought of as gods by aliens. They also disappeared thousands of years ago, and thought of humans as their children. Another key similarity to the Ancients is that they are seemingly an advanced race of Humans, and that those born on Earth are much like a second or third evolution of the species, or at least some kind of splinter group or sub-species. Additionally, they show some similarities (their highly advanced technology and the fact that they mysteriously vanished) to the Jjaro, a race of aliens from a previous Bungie game, Marathon, the Eloh from the MMORPG Tabula Rasa, the Old Ones from Warhammer 40,000, the Protheans in Mass Effect, the Precursors of Star Control, the Rakata or Builders of Star Wars, the Progenitors of Homeworld, the Chozo and Alimbics of Metroid, the "Preservers" of Star Trek, the Xel'Naga of Starcraft, the Great Beings of Bionicle, the Time Lords, of "Doctor Who", The Precursors of "Jak and Daxter", and especially, the Krell of the film "Forbidden Planet". The concept of a highly advanced extinct race leaving technological relics behind is not a new concept and has appeared in several other media such as books and films like Stanley Kubrick's 2001: A Space Odyssey. The Forerunner also bear a striking similarity to Larry Niven's Pak Protectors (Known Space Series), whom also built a Ring-like Station but disappeared, leaving the Ringworld to go off balance from its own sun.
  • The Forerunners were the main focus of the alternate reality game, Iris.
  • The holographic construct on Epitaph is said to be the Forerunner AI, Mendicant Bias.
  • On the final level of Halo Wars, 7 Forerunner numbers can be seen on the forcefield ground. When the forcefield is deactivated, the numbers go away.
  • It was announced recently that a trilogy of books based on the Forerunners' culture and their war with the Flood will be written by Greg Bear.
  • In Halo, the last Campaign mission in Halo 3, there is a cutscene in which a rampant 343 Guilty Spark says to the Master Chief, "You are the child of my makers. Inheritor of all they left behind. You are Forerunner." This, among other things, has led to many fans to conclude that Humanity and the Forerunner are one and the same. Humans are capable of using Forerunner technology directly, specifically those that other species cannot, such as the Halo Rings and the Ark. However, the Terminals show that that the "Librarian" was on Earth, discovering early modern humans 100,000 years ago, indexed them, and built a portal to Ark to send them there. This has led to another theory, where humans, while not being direct descendants of the Forerunners, were considered to be special, and chosen to inherit their role in the galaxy and their empire. This is also apparent in the Halo novel, "The Flood" when Master Chief says that the bridge controls in the large cavern near his life pod's crash site are familiar, suggesting that humans and Forerunners once interacted with each other.



  1. Halo: The Flood, From the experiences of John-117, the Master Chief, the Covenant do not fully understand the Forerunner. This is evident when they mistranslated the Glyph "Reclaimer" as "Reclamation"
  2. Halo Legends: Origins
  3. Halo 2, The Great Journey
  4. Halo 3 Limited Edition - Bestiarum
  5. Ascendant Justice's analysis on the terminals - Voice From The Tomb
  6. Halo: Combat Evolved, 343 Guilty Spark
  7. 7.0 7.1 7.2 Halo: Ghost of Onyx
  8. Halo (Halo 3 Level)
  9. Halo Legends:Origins
  10. Halo 3, The Ark and Halo Levels

External Links

Forerunner-Flood War
Battle of LP 656-38 eBattle of DM-3-1123 bBattle of CE-10-2165-dBattle of G617 g1Battle of the Maginot SphereBattle of the Halo Array
LibrarianDidact032 Mendicant BiasOffensive BiasGravemind
TerminalsKeyshipThe ArkMaginot Sphere
Primary Pioneer GroupAdvance Survey Team-AlphaEmergency Circumstance FleetSuppression FleetSecurity FleetForerunner Fleet Command
Major Factions
· United Nations Space Command ·
· Covenant Empire · Forerunners · Flood ·
· Loyalists · Separatists ·
· United Rebel Front ·

This article uses material from the "Forerunner" article on the Halo wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.


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