Steam app 550 · updated 25 Oct 2026, 15:11 UTC
Set in the zombie apocalypse, Left 4 Dead 2 is a co-operative action horror FPS takes you and your friends through the cities, swamps and cemeteries of the Deep South, from Savannah to New Orleans across five expansive campaigns.
717 hourly samples, with the daily peak drawn over them. Weekends are shaded.
173 months, July 2012 to November 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.
The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.
23 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
30 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
31 days as the curve, each the highest figure that day. Behind it, 567 hourly samples from 08 Oct, which is as far back as the source keeps every hour. Weekends are shaded.
7 days as the curve, each the highest figure that day. Behind it, 150 hourly samples. Each dip is a night. Weekends are shaded.
Left 4 Dead 2 features intense violence, blood and gore (including decapitation or dismemberment of zombie-like creatures) and some strong language.
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Left 4 Dead - The Sacrifice Trailer
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Left 4 Dead 2 - TV Spot 2
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Left 4 Dead 2 Teaser
Watch on Steam101 achievements in total.
50 developer announcements, Aug 2013 to Jun 2026 · times in UTC
An update has been released for Left 4 Dead 2. - Revised fix for Linux build including latest security patches.
Patch notesAn update has been released for Left 4 Dead 2. - Fixed several crashes and exploits reported via HackerOne.
Patch notesAn update has been released for Left 4 Dead 2. - Fixed a compatibility issue that was causing a crash on Linux clients.
Patch notesAn update has been released for Left 4 Dead 2. - Fixed exploits used to crash remote servers.
Patch notesAn update has been released for Left 4 Dead 2. - Fixed some exploits used to crash remote servers.
Patch notes{STEAM_CLAN_IMAGE}/964095/a53e181c91ba2184ba8cbe1e7796896ed168bcda.jpg Left 4 Dead 2 celebrates its 15th anniversary this weekend by going free-to-play until November 18th. Jump in for the first time to battle zombie hordes with your…
KerryAn update has been released for Left 4 Dead 2. - Fixed several crash and remote code execution exploits. - Fixed a crash on some NVIDIA graphics cards when shader detail is set to High.
Patch notesAn update has been released for Left 4 Dead 2. - Player connect message is no longer networked to clients, to prevent exposing player IP addresses.
Patch notesAn update has been released for Left 4 Dead 2: - Fixed a regression that blocked taking screenshots.
Patch notesAn update has been released for Left 4 Dead 2: - Fixed a memory leak exploit in lobby chat. - Prevent running arbitrary script code on a remote server. - Prevent a network exploit that gave the client access to server settings.…
Patch notesAn update has been released for Left 4 Dead 2: - Fixed an exploit that could block a player from connecting to any game, whether online or local. - Fixed two exploits that used invalid content to crash the game or prevent it from loading.…
Patch notesAn update has been released for Left 4 Dead 2: - Fixed a bug that prevented the community server list from appearing.
Patch notesAn update has been released for Left 4 Dead 2: - Fixed two exploits that could remotely crash servers. - Fixed music not playing at the main menu on Linux.
Patch notesAn update has been released for Left 4 Dead 2: - Fixed another exploit where malicious network packets could severely degrade server performance. - Fixed a client exploit that could cause long server stalls. - Fixed a potential crash if a…
Patch notesAn update has been released for Left 4 Dead 2: - Blocked an exploit that could forcibly disconnect a player from any server, even when playing a local game.
Patch notesAn update has been released for Left 4 Dead 2: - Fixed two exploits that could crash remote servers. - Fixed missing lobby state messages. - Fixed community server searches not always returning the full set of lowest-ping results.
Patch notesAn update has been released for Left 4 Dead 2: - Improved the reliability of "mm_dedicated_force_official_servers" to find the lowest ping server across the supplied IPs.
Patch notesAn update has been released for Left 4 Dead 2: - Fixed several matchmaking lobby exploits. - The cvar "mm_dedicated_force_servers" now only applies to lobbies with the "Best Available Dedicated" server type as originally intended - for all…
Patch notesAn update has been released for Left 4 Dead 2: - Fixed an exploit where reliable network fragments could stall out a server indefinitely. - Re-enabled uploads by default so sprays will work again.
Patch notesAn update has been released for Left 4 Dead 2: - Fixed a degenerate case where malformed network packets could delay processing the remainder of the stream, severely impacting server performance.
Patch notesAn update has been released for Left 4 Dead 2: - Fixed possible corruption of the unreliable network stream during high network loads. - Increased default command limits to prevent spurious disconnects.
Patch notesAn update has been released for Left 4 Dead 2. - Added protections against malformed network packets. - Reduced server-side command limits per client. - Fixed a regression in script handling of regular expressions. - Fixed several…
Patch notesAn update has been released for Left 4 Dead 2: - Fixed several vulnerabilities and exploits reported via HackerOne.
Patch notesAn update has been released for Left 4 Dead 2. Tank Run mutation fixes based on feedback from Tank Run community groups: - Removed auto-revive. - Re-enabled water slowdown. - Re-enabled crawling when incapped. - Lowered revive health to 40.…
Patch notesAn update has been released for Left 4 Dead 2. - Fixed several exploits reported via HackerOne. - Fixed controller navigation in some menus. - Fixed not being able to open the train door in Crash Course when playing the Tank Run Mutation.…
Patch notesAn update has been released for Left 4 Dead 2. - Fixed console chat regression from previous update.
Patch notesAn update has been released for Left 4 Dead 2. - Fixed a regression that caused some scripted special zombie spawns to fail. Fixes Tank Run mutation.
Patch notesAn update has been released for Left 4 Dead 2. - Fixed several crash and RCE exploits, all reported via HackerOne.
Patch notesAn update has been released for Left 4 Dead 2. - Update to DXVK Version 2.0 - Fixed potential exploit to remotely crash servers
Patch notesAn update has been released for Left 4 Dead 2: - Fixed a shader crash with Vulkan on Intel. - Fixed a crash on Linux at the main menu. - Fixed text corruption in the Mutations menu on Linux. - Return the model index from script precache…
Patch notesAnd update has been released for Left 4 Dead 2. - Fixed a long-standing issue where scripts would randomly fail to load, leading to a variety of game-breaking bugs including missing crescendo events and finales that end instantly. Thanks to…
Patch notesAn update has been released for Left 4 Dead 2. - Fixed chat text scale at high resolutions. - Added a menu option to disable controller vibration. - Added the missing grenade binding for Xbox controllers. - Hid controller icons in the HUD…
Patch notesAn update has been released for Left 4 Dead 2 game and Authoring Tools. - Prevent a crash when creating a depth render target texture with multiple frames - Interface and HUD updates for Steam Deck - Enabled rumble effects through Steam…
Patch notesAn update has been released for Left 4 Dead 2. - Improved dedicated server searches to return lower-ping servers closer to the lobby leader's local region.
Patch notesChanges in this update: - Fixed some incorrect disconnect messages. - Blocked an exploit that could be used to crash servers. - Added a Mulitplayer Option to disable sprays to prevent other players' sprays from appearing on your client.…
Patch notesAn update next week will contain a change that clears temp directories when you exit the game. This will delete any spray files that have been downloaded from other players during the session. If you do not want your temp files to be…
KerryAn update has been released for Left 4 Dead 2 - Fixed several more RCE exploits. - Fixed a network exploit that could crash servers - Fixed a networking error when using the defibrillator - Fixed rendering errors when underwater
Patch notesAn update has been released for Left 4 Dead 2 - Fixed splitscreen break. One of the RCE attack vectors fixed in the previous update crossed paths with splitscreen connections. The exploit is still fixed, but splitscreen connections are now…
Patch notesAn update has been released for Left 4 Dead 2. - Fixed a crash when skipping the intro movie with a controller - Set FOV value as archived - Inverted brightness slider to be more intuitive - Fixed a crash caused by an out-of-bounds memory…
Patch notesAn update has been released for Left 4 Dead 2. Bug Fixes - Fixed file path for CricketBat.Miss sound event. - Fixed muzzle flash occurring if you melee immediately after shooting. - Fixed a crash on zero-byte VPKs. - Fixed a startup crash…
Patch notesHello, Valve recently requested that German authorities re-evaluate the game Left 4 Dead 2. We are happy to let you know that as a result the uncut international version of Left 4 Dead 2 is now available to our customers in Germany. Owners…
TomG{STEAM_CLAN_IMAGE}/964095/5be6b4aa824493b73e9eddf0e472dc83fbdce7f5.png Take a Stand in This Massive Community-Made Update Years in the making, The Last Stand is a massive Left 4 Dead 2 update created entirely by the L4D community. Find your…
JakeTo celebrate the holidays in a special way this year, Left 4 Dead 2 will be free until 10AM PST 12/26. It will be free as in, grab it now , pay no money, and it is yours to keep forever – FOR FREE! To claim your L4D2 gift, all you need to…
Chethttp://media.steampowered.com/steam/news/12152/blog_image.jpg?t=1387852412 To celebrate the holidays in a special way this year, Left 4 Dead 2 will be free until 10AM PST 12/26. It will be free as in, grab it now, pay no money, and it is…
ChetDo you have plans for Halloween? Sure, sure you could go outside, get candy, dress up, go to parties, or other dangerous activities which will most likely lead to your demise, but we think buying your first copy of L4D2 or gifting it to a…
Chethttp://media.steampowered.com/steam/news/11745/mood%20study_01.jpg?t=1383077043 Do you have plans for Halloween? Sure, sure you could go outside, get candy, dress up, go to parties, or other dangerous activities which will most likely lead…
ChetBuilding on the work from our last update, we are now releasing the entire set of “older” Left 4 Dead 1 models. It was an interesting walk back through our content tree to find all the various pieces and versions. Depending on your…
Chethttp://media.steampowered.com/steam/news/11347/all_old.jpg?t=1377731550 Building on the work from our last update, we are now releasing the entire set of “older” Left 4 Dead 1 models. It was an interesting walk back through our content tree…
ChetAs the workshop continues to grow we have been working with some members of the modding community to learn where the tools can be improved and to help remove bottlenecks to creating new content. Instead of endless emails, chat, or Skype…
Chethttp://media.steampowered.com/steam/news/11282/earlyfrancis.jpg?t=1376672397 As the workshop continues to grow we have been working with some members of the modding community to learn where the tools can be improved and to help remove…
ChetWhat Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| Launch | left4dead2.exe | -steam | windows | |
| Launch | hl2.sh | -game left4dead2 -steam | macos | |
| Launch | ./hl2.sh | -game left4dead2 -steam | linux |
It runs on public data and somebody's spare time.
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