Quarantine Zone: The Last Check
by Brigada Games · 12 Jan, 2026
1,946 downloads
About the Game
Armed with advanced screening tools and your own instincts, you must decide who gets through and who stays behind. One wrong choice could let the infection slip past your post.
But holding the line is only the beginning. You’ll need to manage scarce resources, reinforce defenses, and keep your camp alive as chaos intensifies with each passing day.
SEE IT? SORT IT
Use high-tech tools to uncover signs of infection among the terrified survivors. Identify contraband, forbidden items, and even rare collectables as you work to keep your checkpoint secure. Send those with suspicious symptoms to quarantine for observation, to the lab for additional screening, or save healthy survivors by sending them to the living block. And those who show to be infected… well, they don't stand a chance anyway.COMMAND THE CATASTROPHE
As the survivor population swells, you’ll be relied upon to provide essentials such as power, food, and medicine. When the alarms are raised, pilot armed drones to ensure the infected don’t breach the compound. The better you manage your ever-expanding base, the more resources, tools, and weapon upgrades you’ll unlock.LEARN. ADAPT. SURVIVE.
When a quarantined survivor becomes an undead predator, all is not lost! Keep newly turned zombies confined to harvest and prepare samples in return for new tools, staff XP, and long-term upgrades. Individuals with unknown symptoms can also be analyzed, but these tests are always fatal to the subject. Will you choose to preserve life? Or will you pursue knowledge at any cost?Screenshots
15 images
Version Information
Steam Patch Notes
Official update history
Hello, everyone!
While the list of changes is not extensive, we’ve addressed multiple issues leading to CTDs. Our team continues to work on improving the stability of the game post Unreal Engine 5.7 update.
Patchnotes:
Fixed multiple issues causing CTD (crashes)
Fixed a softlock during base management tutorial
Fixed "Father's Burden" bulletin board task issue that caused "Eye See You" task to fail and lock further progression
Fixed Audio FX issue related to rain sound not being able to turned off
Known issues:
CTDs related to AMD GPUs - our focus is on this as it’s affecting a number of players. We’ve narrowed it down thanks to additional reports and log files provided by the community and are actively working on a solution
On the topic of AMD GPUs - a temporary workaround:
Use “-dx11” launch option on Steam.
Note: This will affect graphical fidelity of the game, but should alleviate the main cause for the crash.
How to add the launch option:
Select Quarantine Zone in your Steam Library
Right click -> Select Properties
Go into “General” tab -> type in “-dx11” in Launch Options
Start the game
[img src="{STEAM_CLAN_IMAGE}/45434646/ee99059d6b2b0b2203262c82d6582dc73e46ae5d.png"]
Hello, everyone!
A small patch before the weekend.
Changelog:
Fixed memory leak caused by fast opening UI tablet by pressing "C"
Fixed "Modern Prometheus" bulletin board task
Fixed "Eye See You" bulletin board task
We are looking to release a more comprehensive patch by the end of next week, addressing more of the issues reported by our players.
Hello, everyone!
Here's another patch for Quarantine Zone. We are trying a slightly different structure to the notes, which should improve the readability. Tell us what you think in the comments.
The team is already in full-scale work for the first major update to the game, which we can't wait to show you and what we have in store for the immediate future of Quarantine Zone. In the meantime, we'll continue working on fixes for the game, albeit at a somewhat slower pace. Without further ado, the patchnotes:
Fixes:
Opening the Tablet immediately after using the Matioscope no longer causes a softlock
Opening the pause menu a few times during the first cutscene caused the playable character to become unable to move
On Day 8, players were able to send the first survivor to the living block before the tutorial started, which prevented further progression
The quarantine area cannot be cleared until the tutorial from the "Hi, doggy" bulletin board task is finished
The paint stains on the vandal's clothes do not appear if the flashlight is turned on prior to the playable character entering the Survivor's Block during the "Ask your mom" bulletin board task
The final dialogue in the quest "Hi, doggy", in certain cases, used to be unskippable
Text during dialogue skipping remained on the screen for too long compared to the time it takes for the character to finish speaking their line
Detector previously wasn’t correctly notifying players when any of the survivors possessed either drugs or weapons
Mathiascope-related symptoms did not appear in survivors sent to quarantine when they should have
The bulletin board tutorial previously incorrectly stated that there are Major and George tasks, but George's tasks are no longer included in the title
Dans Gaming cameo no longer spawns as early as Day 10, preventing the player from encountering symptoms that have not yet been discovered
Survivors no longer perform the backpack removal animation without wearing a backpack if the animation was interrupted
The survivor's backpacks no longer have an invisible collision wall, which used to make them bulletproof
Soldiers from the Security Tower are no longer standing in an A-pose
Getting up from the crouching position while standing on the lab's bed no longer causes the playable character to be unable to move
Double-clicking the generator's power button no longer turns it off without providing any indication of its status
"Interacting with the cart while looking at it previously caused several issues:
The body bag is inside -> the Player cannot exit the cart while looking at it.
The cart is empty -> when the Player enters the cart, exits, and re-enters while constantly looking at it, they will not be able to jump anymore."
Performance - Walking into the Soldier collectable in the Garage area causes significant framerate drops
Changelog:
Updated physics for extracted organs in the science lab
Optimised lighting in the quarantine
We keep an eye out for any of the information that you share with us both here on the Steam Community Forum and on our other social media, including our Discord community.
Thank you for your continued support!
Hello, everyone!
Here's another Quarantine Zone hotfix - more changes and fixes based on community feedback and bug reports.
The team has already started work on new content for the game, and we'll be sharing info on that as soon as we are ready.
Changelog:
Day 8 – "Ask Your Mom" – task description is untranslated during objective change
Day 8 and 9 – Quest "Ask Your Mom" reappears on Day 9 after being completed on Day 8
Day 8 – The laboratory tutorial progresses when the Player opens the tablet while inspecting a survivor in quarantine
On Day 8, restrictions on entering and checking quarantine before starting the main lab bulletin board task were removed
The "Ask Your Mom" bulletin task does not progress after killing Abe Crow
Fixed the issue when interacting with Charlie with a Valentine's Day emote that causes several issues later when inspecting survivors with contraband
Fixed the issue where the player receives a penalty after sending a survivor with internal contraband from Quarantine for re-inspection
Fixed the issue where NPC and zombie sounds persist after death
Fixed several minor issues with the Warehouse NPC, including one where warehouseman NPC has no collision
Fixed padding for settings screen elements
Fixed collisions that allowed the player to climb onto dead body bags to access an out-of-bounds area
Fixed the issue causing the Lab screen textures load incorrectly
Fixed the issue where the player can use the UV light before the tutorial starts
Fixed the issue during organ extraction, where the game forces the Player to make a mistake to extract a specific organ
Fixed the issue that caused some assets to appear see-through in the apartment buildings
Fixed an issue with the transition from crouch to sprint when sprint is activated
Fixed blurry textures in refugee photos
Fixed the issue with Matiascope in Endless Mode that caused all symptoms to be no longer visible while using it
Changed texture filter to Nearest, fixed UI compression
Added Additional military escort animations
Added 2 new streamer cameos: Tholar and Auron
Removed the teeth necklace and the blood vial from the baggage generator
Replaced the icon for the side quest tracker
Note: We will be adding the option to toggle appearance of cameos in the future, it requires more work to just add it as a part of regular hotfix, but it will be done as part of one of the future content updates. Same goes for being able to encounter said cameos in existing saves.
We keep an eye out for any of the information that you share with us both here on the Steam Community Forum and on our other social media, including our Discord community.
Thank you for your continued support!
Hello!
Earlier this week, we opened an open beta branch to test if our solution for the FOV bug is working properly for the players:
[dynamiclink href="https://store.steampowered.com/news/app/3419520/view/517487250982832443"]
We've received enough feedback to confirm that the fix is working, and this change is now included in the main branch of the game.
There will be another patch later before the end of the week with more fixes based on players' reports and feedback.
Thank you for your continued support!
UPDATE: This hotfix has been rolled back after a progress-blocking bug was discovered. We apologize for the inconvenience.
Howdy folks, here's the freshest Quarantine Zone hotfix - delivered straight to your internet-enabled computer box.
Changelog:
\ Fixed instances where the assigned button to purchase an upgrade is different than what is shown on screen
\ Fixed instances of multiple instances of breathing sound effects overlapping
Fixed a glitch where opening the settings menu during the tutorial causes the tutorial to lose focus and become inactive
Fixed bug which caused the tablet curor to disappear after pressing the Q key
Survivor age in documents should now be more accurately portrayed by the refugee’s face model
\\ In the control settings, the button to toggle the flashlight should now be shown in the controller mapping
\ Fixed an instance that, when using a controller, symptoms would fail to become highlighted if they have already been previously selected.
Fixed a bug that could occur when conducting analyses on multiple samples in the laboratory and only a single symptom would be conveyed to the player.
Fixed a bug that previously allowed players to buy the cage before the tutorial, blocking them out of future progression.
Fixed a bug which would prevent controller players from restarting the game after a day has ended without having the required amount of money
Fixed instances where selecting UV symptoms would always in a poor inspection
Fixed a visual glitch in which survivors could be carrying a doorframe prop in their backpacks
The Valentine’s event duration has been extended to two weeks.
\\ Fixed a bug that would cause the game to become unresponsive if the pause menu was opened before the drone defense mini game.
6 new streamers cameos:
Real Civil Engineer
Chasing Skyler
xAcception
Samwitch
Special Edd
Gremix
Note: We will be adding the option to toggle appearance of cameos in the future, it requires more work to just add it as a part of regular hotfix, but it will be done as part of one of the future content updates. Same goes for being able to encounter said cameos in existing saves.
We are still working on addressing the FOV issue and are close to having a proper solution ready. More time is needed, as we want to make sure the eventual fix will work for all players.
We keep an eye out for any of the information that you share with us both here on the Steam Community Forum and on our other social media, including our Discord community.
Thank you for your continued support!
Hello, everyone!
Hot off the presses is a fresh Quarantine Zone patch addressing issues reported by the community. The next patch is already in the works and being tested and should be available early next week.
Changelog:
Fixed softlock cause by selecting a structure before the tutorial prompts players to during tutorial
Fixed drone control settings issue that caused key binding to not change
Fixed another case of survivors being stuck in quarantine
Fixed an issue with zombies not standing up after falling
Fixed issue where players can get stuck in the quarantine when crouching
Fixed clipping issue where players could jump through ceilings when crouching
Fixed issue when changing the blood color did not affect how it appears on the survivor
Fixed bulletin board task “Ask you mom” issue - the paint from the vandal's clothes incorrectly transferred to nearby objects
Fixed issue that caused the light of the flashlight brighten too much when player points it upwards
Fixed apartment buildings being partially see-through in low graphics settings
Fixed beards rendering issue caused when using an upscaler
Updated hair for several existing cameos
Updated low graphics settings - optimization and image noise reduction
Two new cameos added: Salamandra and Rubius - spawning on days 10 and 12 in campaign mode, and randomly in endless mode on new saves
Note: We will be adding the option to toggle appearance of cameos in the future, it requires more work to just add it as a part of regular hotfix, but it will be done as part of one of the future content updates. Same goes for being able to encounter said cameos in existing saves.
We are still working on addressing the FOV issue and are close to having a proper solution ready. More time is needed, as we want to make sure the eventual fix will work for all players.
We keep an eye out for any of the information that you share with us both here on the Steam Community Forum and on our other social media, including our Discord community.
Thank you for your continued support!
Hello!
The next hotfix patch to Quarantine Zone is here! This is a bigger patch that we were testing since the end of last week. This new patch addressed a number of issues.
Changelog:
Fixed bulletin board task "Father’s Duty" softlock
Fixed bulletin board task “Ask your mom” softlock
Fixed defense mode softlock caused by opening Settings before mission starts
Fixed issue causing not enough zombies spawning for "Kill N zombies" bulletin board task
Fixed Setting issue that caused FPS and motion blur settings to not save
Fixed an issue where the zombie finger was invisible in internal contraband when viewed via XRay
Fixed “Fatal Error” appearing when clicking “Exit Game” in Pause menu
Fixed another CTD that happened during the evacuation
Fixed survivors stacking in the quarantine that prevent players from interacting with them properly
Fixed the the area between the barrels and the water tank in the living quarters where players could get stuck
Fixed zombie sounds
Fixed option to playback breathing sounds in Stethoscope category in Symptops chart when using a controller
Fixed issue during tutorial for Drone Defense displays keyboard and mouse keybinds when using a controller
Fixed cursor being too slow when navigating Base Management UI using a controller
Added option to rebind the sprint key
Adjusted and optimized hair: no longer breaking at close distance, quality
Windowed mode switching now only works via Alt + Enter
Updated zombie finger texture
Updated several other minor textures
We will continue to address the issues in further updates to the game. The fixes for issues such as FOV on ultrawide screens are still being worked on; we want to make sure the eventual fix will work for all players. We keep an eye out for any of the information that you share with us both here on the Steam Community Forum and on our other social media, including our Discord community.
Thank you for your continued support!
Hello!
The next hotfix patch to Quarantine Zone is here! This is a smaller patch compared to the one we've released earlier this week. We continue our steady processing of your feedback and comments and this new patch addressed two more of well-known issues.
Changelog:
Fixed multiple issues related to players not being able to sprint
Fixed CTD issues related to tool interaction
Our team will continue to address the issues in further updates to the game. The fixes for issues such as FOV on ultrawide screens are still being worked on; we want to make sure the eventual fix will work for all players. We keep an eye out for any of the information that you share with us both here on the Steam Community Forum and on our other social media, including our Discord community.
Thank you for your continued support!
Hello!
The next hotfix patch to Quarantine Zone is here! Team is continuously processing more of your feedback and comments and this new patch addressed more of known issues.
Changelog:
Fixed guard towers collision that prevent players from shooting zombies outside the checkpoint
Fixed displayed bind in survivor sorting tutorial
Minor textures fixes
Fixed crash when swapping between the tools (including when interacting with any displays, quarantine, cart, etc.)
Symptom changes:
Fixed appearance of symptoms when researching in the lab
Fixed the order of discovering new symptoms in the lab (red -> yellow -> green)
Fixed the correct displaying of blood and pus symptoms in the mouth and nose
Fixed incorrect instances of survivors having symptoms appear or disappear during the night in quarantine
Fixed display of symptoms on cameo survivors, including the fix to having cameos appear with yet undiscovered symptoms too early in the playthrough
Fixed the appearance of seemingly healthy survivors who turn into zombies over night
Fixed in incorrect scoring during the inspection reducing the # of "Poor Inspection" scores players have been previously receiving
Improved flashlight
Updated & improved Quest UI
AMD GPU users are now prompted to downgrade their drivers when launching the game on the latest version of Adrenaline.
Our team will continue the work on addressing the issues highlighted by our community post-launch in further updates to the game. We keep an eye out for any of the information that you share with us both here on Steam Community Forum and our other social media, including our Discord community.
Thank you for your continued support!
Changelog:
Added Dead By Daylight themed background to the main menu
Added four unique Dead By Daylight survivors
NOTE: Dead by Daylight survivors can only be encountered by starting a new game. Players continuing existing saves will not encounter these characters. An update to introduce these characters to existing saves is coming soon!
Read the Dead By Daylight x Quarantine Zone announcement here: [dynamiclink href="https://store.steampowered.com/news/app/3419520/view/17584622977156193"]
In the meantime, our team is hard at work on addressing the issues highlighted by our player community. We value the time and effort you take to share your thoughts and feedback on the game.
Changelog:
Fixed an issue where the visual prompt for picking up a tool from the table could be missing for some players.
Current Release
Build 24330178
Uploaded Jul 28, 2026
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System Requirements
How to Install
QZSim.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
Needed when extracting (WinRAR / 7-Zip) — not a site login.
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Download Quarantine Zone: The Last Check for PC with a direct link or via torrent. Get the full version of Quarantine Zone: The Last Check for free. Quarantine Zone: The Last Check is a Indie released by Brigada Games.