Quarantine Zone: The Last Check Walkthrough Guide

Quarantine Zone: The Last Check is a simulator where you play as an infectious disease doctor in a military camp. Players need to learn the signs of the zombie virus to identify infections and decide the fate of each survivor. In this guide, we’ll walk you through every story chapter step by step. We’ll also explain the most important gameplay mechanics in detail and describe every symptom in the game. You’ll find out how to recognize all stages of infection, earn money, and upgrade your base.

A zombie apocalypse has broken out in the city, and the military has set up an evacuation camp. People come here seeking shelter, food, and medicine. Some are healthy, some are sick, and some are infected. Your job is to spot the virus and decide where to send each patient: the living area, quarantine, or the elimination block. The main goal is to gather as many survivors as possible for evacuation.

Most of the time, you’ll be identifying symptoms from three categories: illness, illness or infection, and infection. Based on the combination of virus signs, you’ll decide whether to let someone into the shelter, place them in quarantine to watch for symptoms, or send them for elimination if there are clear signs of becoming a zombie.

The most important rule is to never let an infected person into the living block. At night, an infected person will turn into a zombie, killing and infecting several others. You also need to keep an eye on your base’s resources: food, medicine, and fuel. Constant upgrades are essential to avoid overcrowding, hunger, or running out of supplies.

The game starts in your tent after the opening cutscene. Here you’ll find a bed where you can end your shift, which is how you progress from one story chapter to the next. First, pick up the radio from the table — this is how you’ll receive instructions from the Major.

Leave the tent and head to the checkpoint to meet Georgie. Listen to the briefing and call in your first patient, then pick up the flashlight. Always keep it on during examinations, since many visual symptoms aren’t visible in natural light. You can also use it with other tools, even when your hands are full.

During examinations, you need to identify signs of illness and decide where to assign the patient.

There are three types of symptoms:

At the start of the game, your handbook lists symptoms you can identify by appearance:

During examinations, always mark every symptom you find. If you send someone to the correct place, you’ll get a “Flawless Inspection” bonus. Otherwise, you’ll see “Poor Inspection.”

On the first day, you’ll see five people: two healthy, one for quarantine, and the rest for elimination. Once you’ve sent the last patient where they belong, return to your tent and go to bed to start the next shift.

At the start of each shift, a “Finances” window appears. Here you can see your base’s income and expenses. Your earnings depend on how you assign patients and record their symptoms. Each day, $500 is spent on maintaining the checkpoint. The next table, “Deaths in the Block,” shows how many people died because of mistakes in the previous shift:

If you sent people to quarantine in the previous shift, you’ll need to check the isolation ward before admitting new refugees. Overnight, symptoms may disappear or get worse. If they’re gone, send the person to the living area; if they’ve gotten worse, send them for elimination. If someone turns into a zombie, everyone in that cell will get infected, so you’ll have to decontaminate the room by pulling the lever to the right of the door. Sometimes a person might stay in isolation for several days.

Go to your partner and pick up the thermopulse meter. This tool lets you check a patient’s pulse and temperature. If there are abnormalities, the person may hiccup or cough. A new section will appear in your handbook:

Sometimes the pulse or temperature will be right on the edge of normal, which can make things tricky. In this case, hold the thermopulse meter for about ten seconds and watch the readings. Focus on the number before the decimal: if it stays the same while the digits after the decimal fluctuate, make your decision based on that. For example, if the temperature stays between 41.06-41.30, it’s the red “Very high temperature” symptom.

Most of the time you’ll see random people with random symptoms. Occasionally, characters from famous games will show up — for example, a bearded man with a pot on his head who mumbles strangely is Crazy Dave from Plants vs. Zombies.

At the end of your shift, return to bed. After the night, two waves of zombies will attack the checkpoint. Go to the laptop and take control of the drone. The drone is equipped with a machine gun, a grenade launcher, and a heavy cannon. There are lots of fuel barrels in front of the gate.

Base defense is a mini-game where you have to shoot down waves of infected. Use the machine gun against regular zombies, and take out mini-bosses with heavy weapons or by blowing up barrels. If you succeed and the walls aren't damaged, you’ll earn a cash reward.

The morning starts with base management. You need to make sure you always have enough food, supplies, medkits, and power. Hunger leads to death, the sick will die or turn into zombies, and healthy people will become sick. Any building without power will stop working. Try to earn as much money as possible by following all procedures correctly during inspections. Upgrade your facilities as soon as you can: generator, tents, quarantine, checkpoint, and so on.

Head to the checkpoint, check the quarantine area, and start your examinations. Today you’ll have five patients. At the end of the day, go back to bed. You can use quarantine as temporary housing if the living area is full. But remember, if there’s an infected person in quarantine, healthy people there will become sick.

There won’t be any incidents at night, but in the morning the power will go out. Open the base menu and buy as much fuel for the generator as you can. Leave your tent, go to the living area, and flip the switch. Now open your tablet and go to the “Upgrades” section to level up your camp. Then, buy upgrades for the generator, and you can also improve other base facilities.

When you thoroughly examine patients, you earn research points. These are used to upgrade your zone, which allows you to improve base facilities. You can also use these points to upgrade medical equipment. Mark every symptom, even if it’s obvious the person is infected, or you won’t get the bonus for a quality inspection.

Restock your food and medical supplies. Return to the checkpoint, enter quarantine, and talk to Georgie. You’ll now get the reflex hammer tool and some new symptoms:

If you see both a slack jaw and a crossed reflex, send the infected person to the elimination block. If the arm doesn’t move back when struck, mark zero reflex—even if the jaw is slack. You’ll have five patients this shift.

Today you’ll have about ten patients. At the end of the shift, return to your tent to begin evacuation. Two trucks will arrive at the base—one with soldiers, one with scientists. You’ll need to assign survivors to each. If you meet certain quotas, you’ll earn research points from the medics or money from the soldiers. The more people you evacuate, the more rewards you get. To achieve the good ending, you must evacuate at least five people.

The daily report will now include an “Evacuation” window, showing casualties and who was sent or left behind. Buy fuel for the generator, then visit quarantine. Get the scanner from your colleague—this tool lets you see through clothing. You’ll also see new symptoms in the “Appearance” category:

On the last day of the first week, a bulletin board will appear at the checkpoint. Here you’ll find extra tasks—completing them earns you rewards. There are a lot of assignments in the game, so we’ve prepared a separate guide for them.

First, check your base supplies and the infirmary, then get to work. Now you’ll need to inspect refugees’ bags:

You can only open a refugee’s bag during an inspection. Once they’re sent to the living area, quarantine, or for elimination, you can’t take their items. If a patient has luggage, mark it on your tablet. If you find contraband, select weapons or infected items; otherwise, choose luggage.

At night, zombies will attack the base. The first wave will be regular mobs, and the second will have large mutants and a few giants. In the morning, the major will ask you to find the vandal who painted six tags on the walls:

The tags appear one after another. After the sixth, go to the living area and talk to Abe Crow, then find the scientist in the blue suit in the garage warehouse. Look for the troublemaker among the survivors—he’ll have a big red spot that’s visible under a flashlight. You can take money or kick the vandal out—the choice doesn’t affect anything.

Return to the checkpoint and start your inspection. The first patient will have symptoms not found in your database, so you’ll need to take them to the lab for research:

This is how you’ll discover new symptoms and earn research points. If you send someone for research, make sure to mark “Unknown symptom” on your tablet before heading to the lab.

Rash. Brown

Pancreas. Characterized by multiple pimples. It can be localized to certain areas or spread across the whole body. Usually, it’s an allergic reaction or a dermatological condition. This symptom can progress to necrosis.

Some symptoms will need to be identified in the lab. These are usually very noticeable and visible from a distance.

Blood from the Mouth. Brown

Tongue. A visible bloodstain under the lower lip. This could be caused by an injury or indicate a virus that destroys the gums of the infected.

On this day, a man with bruises and a new symptom will show up for one of the tasks.

Aggression. Brown

Left kidney. The face always has a distinct angry look—corners of the mouth turned sharply down, teeth clenched. The patient is constantly swearing and may attack on the way to quarantine or the elimination block. Either the person has experienced severe stress, or the virus is triggering an adrenaline rush from the adrenal glands.