The ground moves.
Catastrophes reshape landscapes and cities. Most major settlements are mobile, and Catastrophe Messengers are the fragile early-warning system between survival and ruin.
Read the world file01 ARKNIGHTS LORE & ORIPATHY ENCYCLOPEDIA
TERRAARCHIVE
A field-ready reference to the world of Arknights: the crystal that powers civilizations, the disease that divides them, and the people who refuse to disappear.
- Operators
- 417
- Main chapters
- 18
- Lore records
- 21
- Indexed terms
- 48
02 ORIENTATION
Read the world from three angles.
Terra is not a backdrop. It is a system: a mineral economy, a medical emergency, and a political order built on who gets to be treated as human.
The crystal spreads.
Oripathy is a progressive, incurable condition caused by active Originium. Its social meaning is often more dangerous than its clinical course.
Read the medical recordThe line is political.
The Infected are not a single community. They are miners, soldiers, refugees, citizens, and revolutionaries caught inside very different regimes.
Read the social record03 EDITORIAL BRIEF
What this archive is for.
Terra Archive is an independent, non-commercial reference project for the world of Arknights. It is built for readers who want more than a character list: a clear record of what Oripathy does to a body, how Originium shapes economies and wars, and why the status of the Infected is never only a medical question.
The archive separates three things that are often mixed together: in-game facts, community cross-checks, and editorial interpretation. Every core record ends with a source trail. Contested or incomplete material is marked instead of being presented as settled canon. Spoilers are labelled, not hidden behind vague language.
Use the seven core records as the spine, then follow the field files for specific nations, factions, and people. If a term is unfamiliar, the glossary is the fastest route back into the archive.
04 CORE RECORDS
The reference spine.
Ten entry points. Every record separates in-game facts from editorial interpretation and links to its sources.
01
MEDICAL / CORE
Oripathy
The crystallising disease that reshapes bodies, law, and politics across Terra.
02 GEOLOGY / COREOriginium
The active mineral that fuels civilisation — and drives the damage it does.
03 SOCIETY / COREThe Infected
People living with Oripathy, stigma, and policies that treat them unequally.
04 GEOGRAPHY / COREWorld of Terra
Continents, nations, Catastrophes, nomadic cities, and a fragile world order.
05 POLITICS / COREOrganizations & Factions
Rhodes Island, Reunion, states, corporations, and the alliances set against them.
06 PERSONNEL / DATABASEOperators
The complete global roster: backgrounds, classes, factions, and official artwork.
07 NARRATIVE / ARCHIVEMain Story
Every main-story chapter from the Doctor’s awakening to the latest release.
08 ANALYSIS / SOURCEDLore Database
Long-form studies of the figures, histories, and mysteries that shape Terra.
09 LANGUAGE / COREGlossary
Key terms of Terra, from Arts and Catastrophe to Sankta and Sarkaz.
INDEX OPEN / ALL FILESResearch Archive
Every published field file, briefing, and character dossier, ordered for continued reading.
05 FEATURED PERSONNEL
The people behind the politics.
★★★★★
CASTER / CORE
Amiya
RHODES ISLAND
Amiya is a Rim Billitonian Cautus who lost her parents when their convoy was raided by bandits in 1090. She contracted Oripathy due to the incident and was rescued by the Doctor.
PERSONNEL FILE
★★★★★★
GUARD / SWORDMASTER
Ch’en
LUNGMEN GUARD DEPARTMENT
To the public, Ch'en Hui-chieh appears to be a stern Lung officer of the Lungmen Guard Department. However, she is more than meets the eye.
PERSONNEL FILE
★★★★★★
MEDIC / MEDIC
Kal’tsit
RHODES ISLAND
One of the first members of Rhodes Island and one of the few remaining members of its predecessor, Babel, alongside the Doctor, Closure and W, the Feline named Kal'tsit is the head of the Medical Department and R.I.'s unofficial…
PERSONNEL FILE
★★★★★★
SNIPER / ARTILLERYMAN
W
BABEL
Who would have expected that the Sarkaz mercenary who once fought for Reunion against Rhodes Island on several occasions eventually had enough of her life as a mercenary and joined R.I.? Originally known as simply W , she approached R.I.
PERSONNEL FILEOfficial illustrations © Hypergryph / Studio Montagne. Asset files retrieved from the ArknightsGameResource mirror. Background summaries adapted from the Arknights Terra Wiki (CC BY-SA 4.0).
06 MAIN STORY
From the awakening to the latest chapter.
07 LORE DATABASE
Studies for the unresolved.
Theresa: The King Who Chose the Living
The Sarkaz king who founded Babel, raised Amiya, and returned from death to free her people from their own memories.Priestess: The Voice Beyond the Stars
The Predecessor scientist who co-created Originium, preserved herself in the Assimilated Universe, and became Act III's central antagonist.The Doctor: The Strategist Without a Past
The tactician who lost their past, the Predecessor called Oracle, and the decision that ended Babel.08 SELECTED RESEARCH
Field files worth opening first.
The Infected
3 min
Transmission Myths: What Oripathy Does Not Spread Through
Ordinary social contact is not a transmission route. Separating material risk from the stigma that inflates it.
2026.10.30
Originium
4 min
Originium and the Birth of the Crystal Age
The energy source that changed the scale of civilisation, and the labouring class that carries its risk.
2026.10.30
Organizations & Factions
4 min
Rhodes Island: Clinic, Ship, and Mandate
A clinic, a ship, and a political actor. What Rhodes Island can do, and what it cannot.
2026.10.30
09 RECENT INTAKE
New to the archive.
Short-form briefings and long-form records, ordered by editorial publication.
All field filesOPERATORS417
MAIN CHAPTERS18
LORE RECORDS21
10 FIELD NOTE
“The archive does not ask whether a life is useful. It asks what happened, who paid for it, and what the record leaves out.”
TERRA ARCHIVE / EDITORIAL PRINCIPLE
11 ACCESS
Choose a record. Follow the citations.
Start with the medical file if you are new to Oripathy. Start with the world file if you are here for the politics. Start with the glossary if a term does not make sense.