Pathologic 3: Quarantine Demo All Achievements and Secrets Guide

Last Updated on 23 February, 2026

Stepping into the plague-ridden streets of the Pathologic 3: Quarantine is a grueling test of your survival instincts and psychological endurance. Navigating this surreal town while managing your own deteriorating mental state can easily leave you missing crucial interactions and hidden secrets. This exclusive guide solves that problem by providing a complete, step-by-step roadmap to flawlessly diagnose patients and unlock every single achievement available in the current build. Prepare to master the game’s intricate mechanics and conquer the quarantine zone with absolute confidence.

Fun Fact: Pathologic 3: Quarantine completely drops the brutal hunger, thirst, and exhaustion meters that defined the earlier Pathologic games. Instead of physical survival, you manage a mental state meter that swings between Apathy and Mania

Table of Contents

1. Story Progression Achievements
   • Tick
   • Tock
   • Tuck…?
2. Managing Apathy and Mania
   • Acedia
   • Overthinking
3. Exploration and Hidden Interactions
   • How Your Letter Finds Me
   • Let Me In
   • Richard and Linda
   • Quod Licet Iovi, Non Licet Bovi
   • Three and a Half Men
4. Medical Mastery and Patient Diagnosis
   • Don’t Worry, I Have a Degree
   • Medicum Morbo Adhibere
   • Fleeting Moments
5. The Ultimate Challenge: Tools of the Trade
   • Core Requirements
   • Comprehensive Examination Checklist
   • Crucial Warnings and Discoveries
6. Conclusion

Story Progression Achievements

Completing the core narrative segments of the demo will naturally unlock the first few achievements on your list. You must pay close attention to the transition between acts to ensure you do not miss the hidden final chapter of the demo. The game rewards you simply for surviving and progressing the main storyline through its acts.

Tick

To earn this first achievement, simply focus on your main objectives and complete Act I. Follow the primary narrative path laid out before you, resolve the initial tasks, and you will secure this milestone with ease as the act concludes.

Tock

Continue your journey and complete Act II. Following the primary narrative path and surviving the escalating challenges in the quarantine zone will automatically grant you this second story milestone right after the act finishes.

Tuck…?

This achievement requires a specific and easily missable action to access a hidden segment. You must complete the hidden Act III. To access this specific act, you must wait for the ending screen to appear after Act II. Once the ending screen displays, press the Esc key to bypass it and continue directly into Act III. The game will prompt you to choose a time to go back to. Choose your desired time and proceed forward to unlock the achievement.

Trick: Keep your finger hovering over the Esc key as the final moments of Act II play out. Pressing Esc immediately after the ending screen appears guarantees you will safely bypass the main menu and successfully trigger the hidden Act III transition without fail.

Managing Apathy and Mania

The demo introduces highly complex mechanics surrounding your character’s psychological state. Pushing these specific mental states to their absolute limits will reward you with two specific and dangerous achievements. You must carefully manage your environment and your actions to manipulate these levels to the extreme.

Acedia

You unlock this achievement when you die of Apathy. We found two primary methods to build this lethargic state. You can increase Apathy passively by simply waiting around the environments and doing absolutely nothing for extended periods. Alternatively, you can actively and rapidly increase your Apathy by drawing your weapon and shooting people in the streets. Both methods will eventually cause your demise and grant the achievement.

Overthinking

Conversely, you earn this achievement by dying in a state of extreme Mania. You need to actively seek out specific environmental hazards to push your mind over the edge. Increase your Mania rapidly by locating the burning barrels scattered in the environment. Stand directly next to these burning barrels and wait until the extreme Mania state fully claims your life.

Trick: If you want to avoid hunting for burning barrels in the dangerous streets, you can use the hidden gramophones located in the theater-hospital or on the second floor of Filat’s apartment building. Playing the music on these devices provides a massive, rapid spike to your Mania from a relatively safe indoor location.

Exploration and Hidden Interactions

The world of Pathologic 3 greatly rewards thorough exploration. You must comb through the various environments, interact with highly obscure objects, and track down specific characters to check off these crucial exploration milestones. Leaving no corner unchecked is the only way to find these secrets.

How Your Letter Finds Me

This achievement requires you to find and read Isidor’s letter. Timing and exact location are crucial for this task. Right as you are about to escape the Thanatica area, look around for a desk. You will find the specific letter resting directly on this desk. Interact with the document and read the contents fully to secure the achievement.

Let Me In

You must be reminded that the Abbatoir strictly denies you entrance. Navigate your way over to the Skinners district. As you walk around this area, use your Q key constantly to check out your surrounding environment. Look for a specific, large gate leading directly to the Abbatoir. The gate will remain completely unopenable, but the simple act of inspecting it with the Q key will trigger the achievement.

Richard and Linda

To unlock this musical milestone, you must listen to a gramophone hidden behind the scenes. The game actively hides two separate gramophones that fulfill this exact requirement. You will find the first gramophone inside the theater-hospital. While you are busy diagnosing patients, walk all the way behind the main stage, locate the hidden gramophone, and play it. Alternatively, you can find the second gramophone on the second floor of Filat’s apartment building. Remember that playing either device will quickly boost your Mania.

Quod Licet Iovi, Non Licet Bovi

You earn this achievement by successfully seeking a bull’s wisdom. This requires a strict multi-step process involving highly specific character interactions. First, when you leave the theater-hospital for the very first time, locate the characters known as the worms. Talk to them and explicitly ask them to bring you the vaccinated bulls. You must then leave the immediate area and come back later. Upon your return, approach the herb brides and speak directly with the bull to complete the final requirement.

Three and a Half Men

You must successfully talk to all the main protagonists to unlock this achievement. This involves tracking down specific characters hiding in completely different districts across the map.

1. Speak directly to the Haruspex located at the hospital.
2. Locate and speak to the Changeling (Clara) roaming in the infected district.
3. Find and speak to the Changeling a second time within that very same infected district.

Through our extensive mapping of the demo, we discovered exactly where Clara makes her highly elusive second appearance. You will find her hiding in the Hindquarters district. Look directly behind the only house in that specific sector that appears fully red on your map interface.

Tip: Keep your finger glued to the Q key while navigating the dark and confusing streets of the Skinners district. Continuously scanning the environment ensures you will easily spot the unopenable Abbatoir gate without wandering aimlessly.

Medical Mastery and Patient Diagnosis

Your critical role as a healer takes center stage in these specific achievements. You must demonstrate your flawless ability to identify symptoms, administer the correct treatments, and manage the dying citizens scattered around the quarantine zone.

Don’t Worry, I Have a Degree

The game challenges your medical hubris by requiring you to select more than eight symptoms at once. Open the main diagnosis menu while examining any available patient. Select as many varying symptoms as the interface allows, ensuring your total count strictly exceeds eight. Once you select the multitude of symptoms, simply exit out of the diagnosis menu without confirming a treatment to immediately trigger the achievement.

Medicum Morbo Adhibere

You must prove your absolute medical expertise by diagnosing all three core patients correctly. We have compiled the exact ailments for each individual. Use our definitive answer key provided in the table below to cure the theater-hospital patients flawlessly.

Patient Name Correct Diagnosis

Luta Anemic Vasculopathy

Finch Burning Fever

Filat Nephropatia epidemica

Fleeting Moments

This grim achievement tasks you with collecting a dying person’s remaining time. Navigate your way to any infected district where you will easily find people lying on the ground actively dying of the plague. Approach these individuals to ease their immense suffering and initiate the specific time collection mechanic. You must carefully administer the correct medicine to make the visual indicator land perfectly between the provided brackets on your screen.

Trick: To quickly earn the “Don’t Worry, I Have a Degree” achievement without risking your patients, simply open the diagnosis menu on your very first encounter, rapidly select over eight random symptoms, and exit the screen before actually applying any permanent medical decisions.

The Ultimate Challenge: Tools of the Trade

This remains the absolute most complex and demanding achievement in the entire demo. The exact requirement states you must use or examine all of the Bachelor’s tools. You must think deeply about what the character Daniil actually considers his personal tools. We have rigorously tested the hidden parameters, and following these precise steps will guarantee your ultimate success.

Core Requirements

You must physically use the Prototype device and the gun. You must also use the decree table located inside the Stillwater building. Furthermore, you must meticulously inspect almost everything using the Q key, engage with every single available mechanic such as the Fleeting Moments time collection process, and talk to everyone you encounter. Talking to everyone inherently includes completing all the requirements for the Three and a Half Men achievement detailed earlier.

Comprehensive Examination Checklist

We have compiled a definitive, exhaustive list of items you must examine. Remember that examining strictly means holding down the Q key. You do not need to try to use the specific devices in the Stillwater building with the E key. We can confirm through rigorous testing that pressing the E key on those devices will not do anything at all.

Make sure to hold the Q key to thoroughly examine the following environmental elements:

1. Thanatica: Examine everything located in the room. This specifically includes all the various stuff scattered on the tables, the butterflies displayed in a cabinet, the suitcase, the large blackboard, and the two NPCs present in the area.
2. The Intro: Examine both the lit bonfires and the unlit bonfires.
3. The Hospital: Examine the masked orderlies, your personal assistant, the sick patients, and the character Burakh.
4. The Infected District: Right at the very start of the zone, examine the masked orderlies, Clara, and the dead bodies scattered around. Further in the district, examine the dying people lying on the ground.
5. The Stillwater: Examine the two strange devices located at the table on the ground floor. Head upstairs and examine the main Decree table.

Crucial Warnings and Discoveries

During our extensive playthroughs, we identified several game-breaking bugs and highly specific triggers that can easily ruin your entire attempt at this achievement. Keep these strict warnings in your mind at all times:

1. The Stillwater Table Block: We discovered a crucial and highly frustrating timing issue. You must examine the table upstairs in the Stillwater building before the character Sticky shows up. If you wait until Sticky appears in the room, his physical character model will permanently block your ability to examine the table properly. This physical block will lock you out of the achievement entirely for that run.
2. The Gun Swap Glitch: We strongly warn against swapping your primary weapons. If you find a second gun while exploring the dangerous quarantine zone, do not swap it with your primary weapon under any circumstances. Our deep testing confirms that picking up extra guns or firing them without following this strict rule will cause the achievement tracking to fail completely.
3. Unavailable Items: We also noted a strange interaction after experiencing the vision with Eva where the residents throw molotovs. A specific room opens in front of her containing some of Daniil’s personal equipment resting on a table. Attempting to actually use this equipment prompts a system message saying the action is unavailable in the DEMO version. You must still examine this equipment with the Q key, even though you cannot actually use it with the E key.

Tip: Make examining the upstairs Decree table in the Stillwater your absolute first priority the moment you enter the building. Reaching it before Sticky arrives is paramount, as his physical presence will permanently block your interaction and instantly ruin your entire achievement run.

Conclusion

Surviving the mind-bending challenges of the Pathologic 3: Quarantine demo requires immense patience and a keen eye for highly obscure details. By following our precise roadmap, you have completely removed the guesswork from managing your sanity and locating Daniil’s easily missed tools. This comprehensive walkthrough ensures you successfully claim every elusive achievement without falling victim to frustrating game-breaking bugs. Stay vigilant as you continue to explore the infected town and apply these expert strategies to whatever horrors await in the full release.

Did You Know? Pathologic 3: Quarantine was a free prelude episode designed to set up the mechanics and narrative for the main game, Pathologic 3. It launched on PC via Steam on March 17, 2025