Quarantine Zone: The Last Check Guide – How to Make Money and Upgrade Your Base

You also need to decide which improvements to prioritize at your base (and you won’t be able to buy everything in the story campaign) and how to wisely allocate funds to keep the area free of zombies and ensure survivors receive the necessary aid and food. This means you’ll also need to manage resources.

This guide explains how to quickly earn as much money as possible in Quarantine Zone: The Last Check to upgrade your base faster. We’ve also listed all the base upgrades and the requirements for each.

How to Make More Money in Quarantine Zone: The Last Check

In addition to the need to accumulate large amounts of Research Points ( RP ) to level up a Zone, players will need tens of thousands of dollars to fully upgrade all structures in the area. Below are all the main ways to earn money and the rewards they provide—this will help you understand which activities are most profitable for farming money.

All sources of income in Quarantine Zone: The Last Check

Carrying out assignments from the notice board

• Reward : $1200.
• Limit : no more than one order per day.

Sending a survivor to the survivor block

• Reward : $400.
• Condition : work at a checkpoint.

Sending the infected person for elimination

• Reward : $400.
• Condition : work at a checkpoint.

Confiscation of contraband

• Reward : $100 for each item.
• Condition : checking backpacks .
• Cons : A $100 fine if you miss contraband. Unlike the reward, however, the fine is a single one, regardless of the quantity of contraband. You’ll also receive a fine for confiscating regular items that aren’t counterfeit.

Search for collectibles (gold items)

• Reward : $500. And since such items are usually considered contraband, you’ll receive an additional $100.
• Requirements : Checking backpacks, rare drop. These items can also be found in scripted locations around the base.

Killing zombies

• Reward : $75.
• Note : Check the tower near the center of defense. However, zombies can also spawn in the survivors’ block.

Killing rats

• Reward : $25.
• Note : Often appear near checkpoints or tents.

Sending 5 survivors into a military truck

• Reward : $1000.
• Note : Only available on the day of evacuation.

Sending 10 survivors into a military truck

• Reward : $1000 (plus $1000 from the previous stage).
• Note : Only available on the day of evacuation.

14 survivors being loaded onto a military truck

• Reward : $1000 (plus $2000 from previous stages).
• Note : Only available on the day of evacuation.

18 survivors being loaded onto a military truck

• Reward : $1000 (plus $3000 from previous stages).
• Note : Only available on the day of evacuation.

22 survivors are loaded onto a military truck

• Reward : $1000 (plus $4000 from previous stages).
• Note : Only available on the day of evacuation.

How to Avoid Financial Losses in the Quarantine Zone: The Last Check

To consistently make a profit and accumulate dollars, it is important to avoid serious mistakes such as:

• allowing infected into the survivors’ block;
• confiscation of incorrect equipment or infected parts;
• death of quarantine survivors at the hands of zombies;
• murder of innocent people.

All Survivor Base Upgrades in Quarantine Zone: The Last Check

The player’s base has nine buildings, each of which can be upgraded. New features become available as the zone level increases.

Generator

It’s necessary to provide electricity to the entire base. Fuel must be purchased constantly.

• Generator 1. An old, refurbished unit with minimal energy output. Maximum fuel capacity: 42 units. Output: 12 units of energy. Requirements: none.
• Generator 2. A reliable starter model with stable output. Maximum fuel capacity: 60 units. Output: 20 units of energy. Requirements: Level II zone, $4000.
• Generator 3. Balanced power and fuel economy. Maximum fuel capacity: 78 units. Output: 22 units of energy. Requirements: Level III zone, $6,000.
• Battery. When the fuel runs out, it allows the generator to run for an additional minute. Maximum fuel capacity: 78 units. Energy output: 26 units. Requirements: Level III zone, “Generator 3” upgrade, $2500.
• Generator 4. Improved engine, high efficiency. Maximum fuel capacity: 96 units. Output: 32 units of energy. Requirements: Level IV zone, $7,500.
• Generator 5. The top-of-the-line model, capable of powering the entire base. Maximum fuel capacity: 120 units. Output: 37 units of energy. Requirements: Level V zone, $9,000.
• Solar panels. Free and clean energy. Maximum fuel capacity: 120 units. Energy output: 37 units. Requirements: Level V zone, $10,000.

Dining room

Needed to provide food for survivors.

• Canteen 1. Caters to 12 people per day. Energy consumption: 1 unit. Seats: 12. Maximum food supply: 40 servings.
• Hydroponics. Automatically produces 8 units of food per day. Energy consumption: 2 units. Requirements: Zone Level II, $3000.
• Canteen 2. Up to 20 people per day. Energy consumption: 3 units. Requirements: Level III zone, $3,000.
• Canteen 3. Up to 36 people per day. Energy consumption: 4 units. Requirements: Level IV zone, $7,000.

Clinic

Necessary for the treatment of sick survivors.

• Medical tent. Treats up to 10 people per day. Consumption: 1 unit of energy.
• Hospital. Treats up to 25 people. Energy consumption: 2. Requirements: Level III zone, $3000.
• Pharma Generator. Produces 5 first aid kits per day. Consumption: 3 energy units. Requirements: Level III zone, $6000.
• Tents. These determine how many survivors can be accommodated at a base.
• Tents 1 – 12 persons.
• Tents 2 – 15 people. Requirements: Zone Level II, $1000.
• Tents 3–18 people. Requirements: Zone Level III, $2,500.
• Tents 4–21. Requirements: Level IV zone, $5,000.
• Tents 5-25 people. Requirements: Level V zone, $8,000.

Guard tower

The main defensive structure.

• The foundation of the tower is the base for construction .
• Tower 1 – automatic defense, reduces losses. Requirements: Tier II Zone, $3000.
• Tower 2 – double efficiency and noise. Requirements: Zone Level III, $5,000.

Laboratory

Used to study new symptoms.

• Laboratory is a basic module.
• Zombie Cage – Containment of infected. Requirements: Level III Zone, $40,000. Don’t buy it under any circumstances, as this module unlocks automatically at a certain point in the story campaign. However, in Endless Mode, you must do it yourself.
• Automatic Feeder – converts corpses into food. Requirements: Level III Zone, $10,000.

Quarantine

Observation area for dubious survivors.

• Quarantine 1 – 3 places.
• Quarantine 2-4 seats. Requirements: Level II zone, $1000.
• Quarantine 3-5 beds. Requirements: Level III zone, $2,500.
• Quarantine 4-6 beds. Requirements: Level IV zone, $4,000.
• Quarantine 5-7 beds. Requirements: Level V zone, $6,000.

Checkpoint

• The checkpoint is the basic inspection zone.
• Metal Detector – detects metal. Requirements: Level II Zone, $2000. Each upgrade increases the building’s energy consumption.
• Gunpowder Detector – searches for ammunition. Metal detector upgrade. Requirements: Level II zone, $1500. Each upgrade increases the building’s power consumption.
• Chemical detector – pills and drugs. Requirements: Level III zone, $3000. Each upgrade increases the building’s energy consumption.
• Rot Detector – Infected items. Requirements: Level IV zone, $2000. Each upgrade increases the building’s energy consumption.
• Symptom Scanner – Predicted symptoms. Requirements: Level IV zone, $4000. Each upgrade increases the building’s energy consumption.

Defense Center

• 130mm gun is heavy artillery .
• Ability Booster – Reduces cooldown by 30%. Requirements: Level II Zone, $4000.
• Soldiers – Assistance during attacks. Requirements: Level III Zone, $5,000.