NieR Automata Codexery — Data & Quality

We publish our audit record because accuracy claims should be checkable. Every entry on this site runs through an automated fact-audit pipeline (accuracy audit → source-grounded repair → visual QA); this page is generated from that pipeline's own report, not written by hand.

This is a fiction/fan codex: entries describe an in-universe canon. Our audits check canon and internal consistency — external fact-checking does not apply the way it does on real-subject codexes.

Last full accuracy audit: 2026-08-21 · 30 entries checked · 14 flagged · 30 issues confirmed · 14 corrected · 16 still open

Recent findings (audit lane, verbatim)

A2 — The entry states that A2 and 9S both learn the truth together in the tower, but in canon they learn it separately.

A2 — The entry states that in the final confrontation, if the player chooses A2, she does not save 9S, which omits the existence of multiple endings (Ending D and Ending E) where different outcomes occur.

Kainé — The entry states 'In a third or further playthrough, Kainé becomes overwhelmed by Tyrann, going berserk' but this occurs in the second playthrough (New Game+), not a third or further playthrough.

Kainé — The entry states 'In the fourth ending, the protagonist sacrifices his own life for Kainé, erasing all memory of him from her and Yonah' but in canon, Ending D does not erase all memory of him from Yonah or Kainé; Yonah remembers him and Kainé retains memories

Devola — The tower is not revealed to be a YoRHa facility or the Bunker's backup; it is a Machine-built structure that contains a server intended to store the data of all YoRHa units, but it is not the Bunker's backup.

Devola — Devola and Popola do not sacrifice themselves to activate the tower's elevator; they manually operate the elevator to allow 9S and A2 to ascend, but they survive this action and are later seen alive in the game.

The Pod — The Pod is described as a 'floating, box-like robot' but its canonical appearance is a small white orb/sphere, not box-like.

The Pod — The Pod is said to provide 'weapon maintenance (repairing and upgrading weapons)', but in canon, Pods do not repair or upgrade weapons; that is done at weapon shops or via the menu system.

YoRHa Division — Type C (Charge) units are actually Commander or Command models (e.g., Commander White), not close-quarters combat specialists.

YoRHa Division — Type A (Attack) and Type B (Battle) are both front-line combat models, with Type B being a direct upgrade or variant of Type A, not a separate specialist category.

Androids — The entry states that humanity fled to 'the Bunker,' but the Bunker is the YoRHa orbital base, not a human habitat; humans never lived there. Humans fled to the Moon, not the Bunker.

Androids — The entry claims androids were 'mass-produced before human departure,' but canon states that androids existed before the aliens arrived and were created by humans on Earth, but the mass-production for the war against machines occurred after humans fled to the

YoRHa Project — The YoRHa Project was not initiated in 11945; the exact founding year is not given as 11945.

YoRHa Project — Humanity did not go extinct in 2003; extinction occurred around 2029-2030 after the Gestalt project failed.

Adam and Eve — The entry states Adam and Eve appeared in 11945, but the correct year is 11942.

Open data

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Corrections

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