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 · 7 flagged · 14 issues confirmed · 7 corrected · 7 still open
Louis — The entry states 'In The Sacrifice campaign, Louis does not play a key role in facilitating Bill's final plan; that honor belongs to the other survivors, who work together to execute Bill's sacrifice.' This is factually incorrect; Louis does play a key role, i
Charger — The Charger first appeared in Left 4 Dead 2 (2009), not Left 4 Dead (2008).
Charger — The claim that a Charger's victim does not take fall damage when the Charger is killed mid-charge is false; they do take fall damage if the height is sufficient.
Survivors — The original Left 4 Dead crew includes a Vietnam veteran, a religious bookstore manager, a mechanic, and a former college student — this is incorrect. The original four survivors are Bill (Vietnam veteran), Louis (IT manager), Zoey (college student), and Franc
Dawn of the Dead — Highway 128 is not a canonical location in Left 4 Dead; the game's campaigns feature highways like Interstate 10 (in 'Dead Center') and other roads, but Highway 128 is not referenced in any official game material.
Dawn of the Dead — The term 'Green Flu' is not the official canonical name for the infection in Left 4 Dead; the game's lore refers to the infection simply as a 'rabies-like' or 'unknown' pathogen, and 'Green Flu' is a fan-coined term, not an established canon name.
Sacrifice Campaign — The Sacrifice campaign is not available as DLC for Left 4 Dead 1; it was released only for Left 4 Dead 2.
Sacrifice Campaign — The ending of The Sacrifice is a prequel to The Passing, not to the main story of Left 4 Dead 2; The Passing takes place after The Sacrifice.
The Passing Campaign — The claim that No Mercy is set in Philadelphia and Dead Center in Fairfield is factually incorrect; No Mercy is set in Fairfield, Pennsylvania, and Dead Center is set in Savannah, Georgia.
Meet the Survivors — The campaign No Mercy is set in Fairfield, Pennsylvania, not Philadelphia.
Meet the Survivors — The survivors do not meet in the safe room of an apartment building; they meet in the safe room of the first building, but the campaign begins with all four already together in the safe room, not meeting for the first time there.
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