Patient Zero: Virus Simulator

Contains adsIn-app purchases
3.9
16.9K reviews
Content rating
Teen
1M+
Downloads
Content rating
Teen
Mild Violence
Learn more
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About this game

Patient Zero is a new global virus idle simulator where you do not just watch the outbreak — you lead a secret underground lab creating and improving dangerous pathogens. This virus game combines long-term progress with continuous experiments and evolution.

In Patient Zero, your organization works from the shadows — gathering data, testing new pathogens, and releasing viral strains into the world. While governments try to stop the pandemic, you build your own system of spread — hidden, efficient, and designed for global infection. Every choice shapes the outbreak and the fate of disease worldwide.

This hybrid idle simulator mixes strategy, simulation, and progress. Your infections continue even when you’re away, but the most important decisions remain in your hands. Patient Zero delivers the tension of a pandemic simulator while focusing on lab management and pathogen evolution.

There are currently four main pathogens, each with unique viral strains:

* Virus
* Bacteria
* Parasite
* Fungus

A new pathogen — Nanobot — is in preparation, with more viruses on the way. Develop your lab, improve your pathogens, unlock stronger strains, and accelerate every stage of viral progress.

Your pledge to control, evolve, and dominate the global infection is in your hands.
Updated on
Apr 07, 2026
Available on
Android, Windows*
*Powered by Intel® technology

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, Personal info and 2 others
No data collected
Learn more about how developers declare collection
Data isn’t encrypted
Data can’t be deleted

Ratings and reviews

3.9
15.4K reviews
Levias Wolfe
August 10, 2025
I have completed the bacteria strain four times and it will not let you progress to the next pathogen, as others have said. I also have experienced the bug of speeding up immediately shutting off. You have to fully close the game for it to start working again. It is a pretty decent game, but these bugs need to be fixed. I would not make any purchases.
204 people found this review helpful
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teemo teemo (teemo was here)
March 22, 2026
I wanted to like this game, but I ended up spending more time watching ads than actually playing. It feels like every few minutes I’m forced into another ad, which completely ruins the experience. On top of that, the prices to remove ads are way too high. Paying $14 to remove ads or even $5 just to stop forced ads doesn’t feel reasonable. Because of this, I can’t really give a fair review of the gameplay itself since I barely get to play. The constant ads make it frustrating instead of fun.
3 people found this review helpful
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Mike OBrien
March 3, 2026
This was a fun game... for about an hour. Forced ads became more and more frequent until they were happening about every minute or so. There are plenty of other games out there that follow the same style and have little to no forced ads. They do just fine. I'm not paying a monthly fee to remove them, I'm just uninstalling.
9 people found this review helpful
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What’s new

Bugfixes