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: 2026-08-27 · 30 entries checked · 21 flagged · 41 issues confirmed · 21 corrected · 20 still open
The Emperor — The entry states the Emperor 'created the Terran Army' as a key creation, but the Terran Army was not a direct creation of the Emperor alone; it evolved from pre-existing forces and was consolidated under his rule.
Lion El'Jonson — The entry states that a sequel series titled 'The Scouring' has been officially announced by Black Library with several novels and short stories already published, but no such official series has been announced or published.
Angron — The entry states Angron was 'placed as an infant on the brutal gladiatorial world of Nuceria by the Emperor.' In canon, the Emperor did not place him there; the Primarchs were scattered across the galaxy by the Chaos Gods, and Angron landed on Nuceria by chanc
Angron — The LORE section states 'The World Eaters' berserker transformation and the full dominance of the Butcher's Nails occurred after Isstvan V, notably during the campaign on the world of Ghenna.' In canon, the full dominance of the Nails and the berserker transfo
Magnus the Red — Magnus ascended to daemonhood during the Burning of Prospero, not the Siege of Terra.
Adeptus Astartes — The Horus Heresy series consists of more than 65 published volumes; as of 2024, the total number of novels, novellas, and anthologies exceeds 65, and the exact count is not a fixed canonical figure.
Adeptus Astartes — The Horus Heresy is set in the late 30th/early 31st millennium, not simply 'the 31st millennium'; the Great Crusade and Heresy occur in the 30th millennium (M30-M31), and the Siege of Terra ends around 014.M31.
Alpha Legion — The claim that Omegon is definitively killed by Roboute Guilliman during the Battle of Eskrador is inaccurate; in canon, Alpharius is killed by Rogal Dorn, and Omegon's fate is ambiguous.
Isstvan V Massacre — Ferrus Manus was killed in single combat with Fulgrim during the initial stages of the massacre, not after inflicting heavy casualties and then retreating.
Isstvan V Massacre — Vulkan did not retreat; he was believed killed (later revealed to have survived) during the massacre, and the entry misrepresents Ferrus Manus's death as a retreat or later perishing.
The Webway Project — The Webway Project was conceived before the Emperor left Terra and made Horus Warmaster, not after.
The Webway Project — The Webway is not entirely separate from the Warp; it is a network of tunnels that exists within the Warp but is shielded from its raw chaos.
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