Quarantined World

Galaxy Portal
Planets

Quarantined Worlds (Quarantine Worlds)^[10] are an Imperial classification of planet. These worlds are too dangerous to settle or explore, but still seen as too valuable to destroy or ignore completely. These planets are placed under strict quarantine the Administratum or Inquisition and sometimes are even blockaded to ensure that nothing may enter or leave its surface until the Imperium can properly utilize them.^[1]

Resources on these worlds tend to be scarce and those trapped there must scrounge for whatever meager remnants that can be found. A world could be marked as quarantine for a number of reasons such as a pathogen, some form of warp contamination, or dangerous creature(s), however some remain verdant paradises. Some Quarantine Worlds are rumoured to be covered in psychic storms that burn away sanity, others are said to be stalked by ethereal remnants of long-dead races amongst once-grand temples, and few have simply experienced events so terrible that the Imperium deems that what transpired must remain secret forever.^[10]

The inhabitants of these worlds might be utterly unaware of their world's quarantine status, having become little more than a myth. Others could be fully aware of their home's status and wear this imprisonment as a punishment to be woven throughout their society as a penance. Individuals on these worlds can attempt to seek redemption by addressing what has prompted their quarantine. This could be by slaying some beast, stomping out a blight, or destroying a source of warp-corruption.^[10]

Those that seek to find a way off-world will have to beat the immeasurable odds stacked against them, both in order to depart and to retain their freedom afterward. Individuals that make it off-world will tend to be killed immediately if their world-of-origin is discovered. Some might be hunted by an Inquisitor to be interrogated about said world, before being killed, but this isn't always the case depending on the Inquisitor as well as the situation in question.^[10]

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Known Quarantined Worlds

Planet name	Segmentum	Affiliation	Population	Notes
Abandoned Hope[3]	Segmentum Obscurus	Imperium	Unknown
Belial IV[5a]	Segmentum Obscurus	Chaos		Forbidden under interdict of the Ecclesiarchy during the First Survey[5a]
Carrion Deep (former)[2]	Segmentum Tempestus	Imperium	None	Now — Dead World and Tomb World
Gonomondium[1]	Unknown	Imperium	Unknown
Haxan Prime[1]	Unknown	Imperium	Unknown
Olympia[8]	Ultima Segmentum	former Imperium	None	Former homeworld of Traitor Primarch Perturabo
Phargos Rex[6a][7a] ("Phargos Hex")[6a][6b]	Ultima Segmentum	Unclear	Unknown	Declared "classified" and "forbidden"[6a][6b] after becoming engulfed by a Warp Storm during the Pale Stars campaign (Horus Heresy)[7b]
Rheelas[11]	Ultima Segmentum	Unclear	Unknown	Declared "quarantine" shortly after liberation by Lord Ebongrave due to paranoia of Tau sympathizers and seditionists. The once prosperous mining world fell to ruin and anarchy as the quarantine lasted decades. The quarantine would prove warranted for completely unrelated reasons as something more dangerous was found deep at the bottom of the world's oceans.[11]
Sarvakal 22-b	Ultima Segmentum	former Cythor Fiends, currently Imperium	None	Quarantined since the Ghoul Stars Crusade[4]
Signus Prime[Help]	Ultima Segmentum	Imperium	None	Quarantined since the Battle of Signus Prime during the Horus Heresy[Help]
Skopios (former)[Help]	Ultima Segmentum	Imperium	Unknown	Formerly Research Station. It was a large asteroid that was destroyed by Imperium and a large area surrounding its remains was quarantined[Help]
Teruxyne[Help]	Segmentum Obscurus	Imperium	Unknown	Also — Dead World[Help]
Typhon[5b]	Segmentum Obscurus	Imperium	Unknown	Near the Eye of Terror[5b]
Vapaus[10]		Imperium[10]	Formerly 10 billion[10]	Former mining hub and trading post. Placed under quarantine due to strange phenomonon where all inhabitants entered a vegetative state, unable to be awakened. Incoming vessels and people succumb to the same fate after staying for some time.[10]
Vraks[9]	Segmentum Obscurus	Imperium	0 (Formerly 8'000'000)	Quarantined after the Siege of Vraks by the Ordo Malleus[9]

Sources

This article includes background material from a Black Library publication re-released under the Heretic Tomes banner which, per the Heretic Tomes Publication Disclaimer, contain parts which are considered outdated and in contradiction of established background lore.

• 1: Warhammer 40,000 6th Edition Rulebook pg. 153
• 2: Imperial Armour Volume Ten - The Badab War - Part Two, pgs. 88–89
• 3: Fantasy Flight Games The Calixis Sector (archived page last accessed 29 May 2015)
• 4: What Wakes in the Dark (Short Story)
• 5: Farseer (Novel) ^{Heretic Tomes}
  • 5a: Chapter Four
  • 5b: Chapter One
• 6: Imperial Armour Volume Nine - The Badab War - Part One
  • 6a: pgs. 6-7
  • 6b: pg. 29, The Pale Stars
• 7: The Horus Heresy Book Six - Retribution,
  • 7a: pgs. 92-93, Charta Imperialis: Mare Stellum Pallidus, 'The Sea of Pale Stars'
  • 7b: pg. pgs. 90-91, Fulcrum, The Blood-Stained Stars
• 8: Codex: Chaos Space Marines (8th Edition), pg. 31 — Iron Warriors
• 9: Imperial Armour Volume Seven - The Siege of Vraks - Part Three, pg. 89
• 10: Dark Heresy Second Edition: Enemies Beyond, pgs. 30-31
• 11: Deathwatch: The Outer Reach, pg. 41