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Research dossier · General Reference

Left 4 Dead 2

2009 video game

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 19, 2026
Entity authoritySource title only
Source-derived summary

Left 4 Dead 2 is a 2009 first-person shooter game by Valve. The sequel to Left 4 Dead (2008) and the second game in the Left 4 Dead series, it was released for Windows and Xbox 360 in November 2009, Mac OS X in October 2010, and Linux in July 2013.

Editorial summary

Begin with the source’s own compact description: “Left 4 Dead 2” is 2009 video game. The dossier treats that line as a proposition to test through Left, Dead and video, not as a finished interpretation.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—2009, 2008, 2010, 2013—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, Left, Dead and video is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “2009 video game” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 19, 2026. The first chronological checks are 2009, 2008, 2010 and 2013.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Left 4 Dead 2”, its source revision and the description used here.
  2. Expand the search: follow Left 4 Dead 2 primary sources, Left 4 Dead 2 archive and Left research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Left 4 Dead 2”?
  2. Which cited source is closest to the event, object or claim?
  3. What terminology or title could unlock a more precise catalogue search?
Subject index

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Source & attribution

This entry incorporates text from “Left 4 Dead 2” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.