Left 4 Invasion: Outer Space!

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  • 10 Chapters
  • 5 Multiple Endings
  • Unusual Secrets
  • Valves Official Chapters
  • Friends or Solo-able

Tagged

  • bradmyers
    bradmyers

    Posted this review

    5

    A lot of endings, total chaos

    The good endings are hard to get, probably 99% of players get the bad ending. Which means the campaign forces them to lose. Who wants that? Only losers enjoy losing. This, plus the exagerrated difficulty sometimes, and the copy-pasted pieces of original maps make this a pretty bad campaign.

    Edited: July 2025

Audio Available

Developers & Credits

  • Sir Jay

    Scripting

  • NeoLin

    UFO's

  • Tsumugi Shirogane

    Earth Model

  • Valve

    Original Chapters

  • iamDeanPC

    Developer

File Details

l4invasion.zip

(300.6 MB)

View Changelog

Version 5.5 Final

iamDeanPC : Trending

Left 4 Invasion: Outer Space!
  1. Left 4 Invasion: Outer Space!
  2. No Mercy: Christmas Edition (Part 2)
  3. Source 2: Plantation Survival
  4. Dead Center: Christmas Edition (Part 1)
  5. Dark Carnival: Ghostbusters! (Halloween)
  6. Dead Center: Halloween Edition

maps : Trending

Heaven Can Wait 2
  1. Heaven Can Wait 2
  2. Early Days (optimized/fixed)
  3. 异度神召威力加强版(Divine Cybermancy PK)
  4. Lima Infection Legacy
  5. Amid The Ruins
  6. Helm's Deep Battle Campaign
  7. Attica Region 2
  8. Death Aboard 2
  9. Anemoia - (backrooms)
  10. Deathcraft II

maps : New & Popular

Lima Infection Legacy
  1. Lima Infection Legacy
  2. Amid The Ruins
  3. 异度神召威力加强版(Divine Cybermancy PK)
  4. Symbyosys v14
  5. Dead Flag Blues 2 Reborn
  6. NanningCity / 广西 南宁
  7. Anemoia - (backrooms)
  8. Reverse Dead Air
  9. Not Alone (Campaign Alpha Test)
  10. DEAD FLAG BLUES 2 (L4D2 SURVIVORS)

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