Forerunner starship

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Several different types of Forerunner craft.
Forerunners and Ancient Humanity on Earth.

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Forerunner starships are ships used by the Forerunner species as a whole, including their Ecumene.[1]



Main article: Forerunner fleet

Ship designs were dynamic for the Forerunners. As such, classifications weren't based on incorporated systems or role, but rather on its formative nature within the era it was constructed.[2] The Forerunners grouped warships into orders of battle based on defensive and offensive capabilities. This manifested as numbered orders for ships.[2]

The Builders, Miners, and Lifeworkers all operated ships.[1] Builder Security[3] and the Warrior-Servants also operated numerous warships.[4]

Design and specifications[edit]

Main article: Design seed
A Forerunner crystal resonance chamber.

A special type of design seed is used to construct Forerunner ships, known as ship-seeds.[5]


Main article: Reaction drive
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Main article: Space fighter
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Human-Forerunner wars[edit]

Main article: Human-Forerunner wars

During the Human-Forerunner wars, Forerunner starships and Human starships fought one another. An example of this was during the Battle of Charum Hakkor.

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High Ecumene[edit]

Main article: High Ecumene

In the millennia preceding the outbreak of the Flood War, during the High Ecumene period, the Skirr-class battlecruisers and the Second-order fast frigates were put into service. Only decades before the war, Raptors were also put into service.[3]

Forerunner ships combining their fire.

Forerunner-Flood war[edit]

Main article: Forerunner-Flood war

Forerunner ships participated in the Forerunner-Flood war. Some of which became infected by the Flood.

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Main article: Reintroduction
Keyships reseeding the galaxy.

After the Great Purification of 97,445 BCE, Keyships played a role in the Reintroduction of species to their homeworld.[6] One Keyship, the Anodyne Spirit, was hijacked by Mendicant Bias and would end up crash landing on the San'Shyuum homeworld of Janjur Qom.[7] This ship would be later seen as a religious artifact[8] to the species and would later become part of the Covenant's holy city of High Charity[9] along with a Fortress-class vessel from Tuluk'katho.[10]

Numerous other Forerunner ships ended up being buried, like one under the Babd Catha Ice Shelf on Reach,[11] one buried on Installation 05,[12] and one buried in an asteroid in the Marcey system.[13]

During the Created uprising, several Forerunner vessels were repurposed by the Created to help instill their rule. This included Acolyte-class harriers as well as at least one Fortress-class vessel.[14]



Main article: Warship

Ships of type[edit]

Class Ship Name Notes
Fortress-class vessel Deep Reverence
Long Reverence

Other and unknown[edit]

Ships of the type[edit]

Class Ship Name Notes
Supernal Spiral-class keyship Anodyne Spirit
Council ship Seedling Star
Planet-breaker Unnamed ship
Exploration ship Audacity
Unknown Unnamed vessel (Babd Catha, Reach)
Unnamed vessel (Installation 05)
Unnamed Lifeworker vessel (Unknown moon)

Production notes[edit]

A pitched map for Halo 4, Genessis, was to feature a Keyship in its scenery.[15]



  1. ^ a b Halo Encyclopedia (2022 edition), page 378-379
  2. ^ a b Halo Encyclopedia (2022 edition), page 380
  3. ^ a b Halo Encyclopedia (2022 edition), page 282-283
  4. ^ Halo Encyclopedia (2022 edition), page 381
  5. ^ Halo: Cryptum, page 128
  6. ^ Halo Legends, Origins
  7. ^ Halo Waypoint, Universe - Mendicant Bias (Retrieved on Jun 1, 2020) [archive]
  8. ^ Halo Waypoint, Universe - Dreadnought (Retrieved on Jun 1, 2020) [archive]
  9. ^ Halo 2, campaign level Gravemind
  10. ^ Halo Encyclopedia (2022 edition), page 226
  11. ^ Halo: Reach, campaign level The Package
  12. ^ Halo 2, multiplayer map Relic
  13. ^ Halo: Saturn Devouring His Son
  14. ^ Halo: Outcasts, chapter 23
  15. ^ Artstation, Halo 4 (Retrieved on Jun 1, 2020) [archive]