In KILLING FLOOR 2, players descend into continental Europe after it has been overrun by horrific, murderous clones called Zeds that were created by rogue elements of the Horzine Corporation. 6-player Co-Op & 12-player VS Zed-slaughtering mayhem.

Public builds
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Counted once we have watched for 90 days (since 21 Oct 2026)
Distinct builds deployed to a game's public (default) Steam branch, as Steam's client network describes them.
Checked within minutes of each Steam change. Observed since 21 Oct 2026.
Source: Steam client network (PICS), App info, public branch. Full methodology
Latest public build
Build 13316885
Update posts
0 postsPosts announcing an update, tagged or not
Posts in a game's official Steam news feed that announce an update: tagged as patch notes by the developer, or plainly about a patch or a released update.
Source: Steam Web API, ISteamNews/GetNewsForApp. Full methodology
Typical gap between builds
Not enough builds yet| Build | Went live | Patch notes |
|---|---|---|
| 13316885 | Killing Floor 2 Hotfix Changelog (Game Version 1150) |
From Steam’s client network, last checked . Builds before 21 Oct 2026, when we started watching, aren't listed. Patch notes are the developer’s update post from an hour before to a day after the build. Not every build gets one. How we count
| Posted | Update |
|---|---|
| 15 Feb 2024 | Killing Floor 2 Hotfix Changelog (Game Version 1150) Update |
| 23 Jan 2024 | Killing Floor 2 Winter 2024 Quality of Life Changelog (Game Version 1149) Update |
| 5 Dec 2023 | Killing Floor 2 Hotfix Game Version 1148 Patch notes |
| 17 Oct 2023 | Killing Floor 2 Autumn Update Changelog Update |
| 22 Jun 2023 | Killing Floor 2 Deep Blue Z Hotfix is Now Live Patch notes |
| 6 Jun 2023 | The Deep Blue Z Summer update Is Now Live Across All Platforms! Update |
| 16 Mar 2023 | March 2023 Quality of Life and Bug Fix Changelog Update |
| 2 Feb 2023 | February 2023 Quality of Life and Bug Fix Changelog Patch notes |
| 7 Dec 2022 | Killing Floor 2 Polar Distress Winter Update Update |
| 13 Oct 2022 | Killing Floor 2: Blood and Bonfires Update is Live! Update |
| 13 Jul 2022 | Killing Floor 2 PC Hotfix Changelog Patch notes |
| 29 Jun 2022 | KF2 Summer 2022 Hotfix Changelog Patch notes |
| 14 Jun 2022 | The Tidal Terror Update Is Here! Update |
| 29 Mar 2022 | Killing Floor 2 Spring Cleaning 2022 Update is Live Update |
| 9 Dec 2021 | Killing FLoor 2: Chop 'Til You Drop Christmas Update 2021 is Now Live Update |
| 5 Oct 2021 | Killing Floor 2: Day Of The Zed Update is here! Update |
| 8 Jul 2021 | Killing Floor 2 Summer Update Hotfix Patch notes |
| 22 Jun 2021 | Killing Floor 2 Summer 2021 Update - Interstellar Insanity Update |
| 23 Mar 2021 | Killing Floor 2 Spring Update - Dystopian Devastation Is Here Update |
| 19 Jan 2021 | Killing Floor 2 Hotfix - PC Build 1109 Patch notes |
| 8 Dec 2020 | Killing Floor 2 Christmas Crackdown Update is live! Update |
| 29 Sept 2020 | Killing Floor 2 Fall Update: Infernal Insurrection Is Here! Update |
| 17 Aug 2020 | DLC Weapons are Now Able to be Traded on Steam Patch notes |
| 23 Jul 2020 | Killing Floor 2 - EGS/Steam Build 1102 Changelog Patch notes |
| 17 Jul 2020 | Killing Floor 2 - Steam/EGS PC Build 1101 Changelog Patch notes |
| 12 Jul 2020 | Killing Floor 2 PC Hotfix for EGS Launch issues - Build 1100 Patch notes |
| 9 Jul 2020 | Killing Floor 2 - Steam/EGS PC 1099 Changelog Patch notes |
| 8 Jun 2020 | Killing Floor 2 Perilous Plunder Summer 2020 Update is Live Update |
| 24 Mar 2020 | Spring Update "Neon Nightmares" Is Here! Update |
| 19 Nov 2019 | Yuletide Horror Beta 2 Is Now Live Patch notes |
| 17 Oct 2019 | Grim Treatments Hotfix is Live Patch notes |
| 1 Oct 2019 | Killing Floor 2 Grim Treatments Update Is Now Live Update |
| 18 Sept 2019 | Killing Floor 2 Grim Treatments Opt In Beta 2 Is Now Live! Patch notes |
| 7 Aug 2019 | PSA: Server Browser & Matchmaking Issues Patch notes |
| 18 Jun 2019 | Killing Floor 2: Back And Kicking Brass Released! Update |
| 12 Mar 2019 | Cyber Revolt Beta 2 Is Here Patch notes |
| 28 Feb 2019 | The Cyber Revolt Beta Is Here Patch notes |
| 4 Dec 2018 | Killing Floor 2 Twisted Christmas 2018 Is Here! Patch notes |
| 27 Nov 2018 | Killing Floor 2 Second Twisted Christmas Beta Is Here Patch notes |
| 17 Oct 2018 | Killing Floor 2 Hotfix v1072 Update |
| 2 Oct 2018 | Build 1071 Hotfix Update |
| 2 Oct 2018 | The Monster Masquerade is here! Update 1071 Changelog Update |
| 5 Jul 2018 | Killing Floor 2 Update 1068 Update |
| 12 Jun 2018 | Summer Sideshow 2018: Treacherous Skies Update |
| 7 May 2018 | Small Required Killing Floor 2 Patch - Going Live Now Update |
| 10 Apr 2018 | Killing Floor 2 Update 1063 Patch notes |
| 27 Mar 2018 | Killing Floor 2 Update 1062 - Welcome to the Infinite Onslaught Patch notes |
| 12 Mar 2018 | Spring Beta Update 2 Is Now Live Patch notes |
| 28 Feb 2018 | Killing Floor 2 Spring Update Beta 1 Patch notes |
| 12 Dec 2017 | Welcome to a Krampus Christmas - KF2 Update 1059 Update |
Showing the latest 50 of 123. Show all
Steam keeps no record of past build numbers, so before 21 Oct 2026 a game’s update history comes from its own Steam news: posts tagged as patch notes, and untagged posts that plainly announce a patch or a released update. Older posts are still being read in, most played games first. How we count