The guide highlights how Roblox’s low‑code ecosystem fuels sophisticated horror experiences that blend resource management with micro‑transaction monetization, driving deeper player retention in the platform’s fast‑growing genre.
Roblox’s rapid‑development tools have turned the platform into a hotbed for niche genres, and horror‑survival games like Bunker 09 illustrate this shift. The title combines a simple guard‑duty premise with layered mechanics: players must scrutinize incoming survivors using a Vitals Checker, interpreting temperature, pulse and breathing data against a color‑coded chart. This diagnostic loop creates tension comparable to classic quarantine narratives, while the green‑red decision system forces quick moral judgments that directly affect the bunker’s safety.
Beyond the frontline screening, Bunker 09 introduces resource‑management challenges that deepen strategic play. Nightly system failures—ventilation smoke and power outages—require players to navigate dark corridors, locate maintenance panels, and neutralize hostile infected or raider intruders. The in‑game economy, driven by scrap harvested from defeated foes, lets users purchase bear traps, rusty weapons, and other upgrades, blending free‑to‑play accessibility with optional micro‑transactions. This monetization model encourages repeat sessions as players seek the perfect ending free of internal infections.
The game’s design reflects broader trends in the Roblox ecosystem: immersive storytelling, emergent gameplay, and community‑driven content updates. By offering a concise seven‑day loop with escalating difficulty, Bunker 09 maintains high engagement while showcasing the platform’s capacity for sophisticated, revenue‑generating experiences. For developers, the title serves as a case study in balancing challenge, reward, and monetization, while players gain a compelling, replayable horror scenario that leverages familiar survival tropes within a uniquely social virtual world.
Bunker 09 is another Roblox game in the genre of ‘try not to let something through that’s going to do something sinister in your apartment complex, airport, shawarma stand etc’. In this case, you need to keep people infected with some kind mutating virus outside of your survival shelter. So, let’s explain how to play Bunker 09.
In Bunker 09, you are the guard for a secure bunker, one of the few comparatively safe places in a world overrun by a terrible plague. You can provide shelter to survivors… as long as they’re not already infected. If they are infected you need to make sure you deny them.. or they’re start spreading the infection inside the bunker.
You need to last seven days.

Your main job during the day is to check approaching survivors for signs of infection. When you start out, this is mostly through testing vital signs. You’ll do this using the Vitals Checker item (you’ll find it on the table to the left of you when you start.
Equip it and hover it over the survivor to check their vitals, then compare them to the chart.
Body Temperature
Pulse Rate
Breathing Rate
Fine
35.5°C – 37.5°C
60 BPM – 90 BPM
12 RPM – 18 RPM
Warning (Check other signs.)
37.6°C – 38.9°C
91 BPM – 150 BPM
19 BPM – 48 BPM
Infected
39°C+
151 BPM+
49 RPM+
This isn’t always totally clear cut. Someone with one set of vitals in the Warning category might not be infected, but it’s a good reason to look for any other signs. The closer the vital stat is to the red zone, the more you should be concerned.

After the first day, a screen to your left will show other signs of infection that you need to look out for. Some of these will count as a warning sign (so should be rejected if showing up alongside other warnings.) Others should be treated as immediate rejection.
Warning Signs
Slight discoloration on limbs.
Hunch posture.
Mild cough.
Mild shivering.
Infected Signs
Limbs completely different color.
Head back, chest-forward, arms limp at sides, ‘zombie posture’.
Severe cough.
Severe shivering.
Once you’ve checked the survivor and decided what your verdict is going to be, you need to hit one of the buttons next to them.
Green – Accept
Red – Deny
Sometimes, the survivor you deny will get irate, and come after you. When this happens, you’ll need to equip you weapon from the hotbar and fight with them.
At the end of the day, 10:00pm, you’re instructed to return to the bunker. Step into the highlighted zone next to the door and it will teleport you inside.
Inside Bunker 09, you can wander around and speak to the survivors, who’ll make bleak remarks about the situation. You may also have to tackle a few problems in the bunker, which can include:
Ventilation System failure – The bunker will fill with smoke. You’ll need to resent the ventilation system in the maintenance room. (Along the corridor to the left of the way to the office.)
Power failure – The bunker will go dark. You’ll also need to head to the maintenance area to hit the switch. Be careful, an Infected might jump you in there in the dark, be ready to swing a weapon.
At the end of the day, you need to to two things.
Go to the office to fill out a report.
Go to bed.
Once you’ve gone to bed, you can check the report, and see if there are any infected people in your bunker. (If there are, that’s not good news, and can lock you off from the perfect ending.
Something we’ve also got to address, if we want to really show you how to play Bunker 09… how to deal with unwelcome guests of a hostile nature. The wasteland isn’t all that friendly, and things might attack you while you’re doing your job outside. The enemies currently in the game are:
Infected – You’ll see one of these on Day 3, and sometimes groups afterwards. They look like people with distorted faces and red spikes on their bodies.
Raiders – These look like armed individuals in masks and armor. They’re generally more tactical and might try and jump you at inconvenient times.
You will need to take out any enemies in the bunker vicinity to advance.
You have a few things that can help you. We’re covering only items available by default and through in-game currency for now. The in-game currency is $, which you get from taking Scrap, dropped by enemies and infected survivors you deny, into the scrap grinder to the left of the trapdoor.
These are available to you from the start.
Nail Bat – A bat with nails in. A basic, fairly weak melee weapon. Does not wear out.
Vitals Checker – Cursor over a survivor while holding to test their temperature and pulse.
Breathing Rate Checker – Cursor over a survivor while holding to test their breathing rate.
On the right-hand wall of the bunker entrance area, you’ll find a panel with air drop options. Here, you can spend money to get items dropped onto the ground behind the trapdoor. These arrive after a few seconds’ delay.
Bear Trap – Can be used to trap enemies.
Rusty Sword – A slightly stronger melee weapon.
Rusty Gun – Weak projectile weapon. Limited uses.
Thanks for checking out the walkthrough. If you’re playing any other Roblox horror, then maybe have a look at our Dollhouse Bloodshed walkthrough before you go. Game is kind of great.
The post How To Play Bunker 09 appeared first on Droid Gamers.
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