Plague Inc: Evolved
by Ndemic Creations · 18 Feb, 2016
828 downloads
About the Game

Plague Inc: Evolved is a unique mix of high strategy and terrifyingly realistic simulation. Your pathogen has just infected 'Patient Zero' - now you must bring about the end of human history by evolving a deadly, global Plague whilst adapting against everything humanity can do to defend itself.
Plague Inc. is so realistic that the CDC even asked the developer to come and speak about the infection models in the game!
“The game creates a compelling world that engages the public on serious public health topics.”
- Ali S. Khan, CDC
Over 190 million players have been infected by Plague Inc. already. Now, Plague Inc: Evolved combines the original critically acclaimed gameplay with significant, all-new features for PC including multiplayer, user-generated content support, improved graphics and lots more.

10 Different Disease Types – Master every pathogen; from bacteria to bio-weapons and mind control to zombies, end humanity by any means possible – different diseases will need radically different approaches.
23 Unique Scenarios – Adapt your strategy; scenarios create further challenges for your pandemic – how will you handle a new strain of Swine Flu, or infect a world in Ice Age?
Hyper-Realistic World – Strategize in the real world; advanced AI and use of real-world data and events make Plague Inc: Evolved a highly authentic simulation of a world-ending pathogen. Even the CDC likes it!
Competitive Multiplayer - The world is unlucky enough to be infected with two plagues, but how will you win the battle for genetic dominance against your opponent? Players get all new evolutions, abilities and genes to help them fight for global control and destroy their opponent!
Co-Operative Mode - Two different diseases team up to infect and destroy the world together but Humanity has new tricks up its sleeve to fight back! Work closely with your partner and use brand-new genes, traits and strategies to smash cure labs all over the world before they eradicate you.
Contagious Content Creator - Hit the lab and develop your own custom scenarios - creating new plague types, worlds and in-game events. Sophisticated tools support user-generated content to let players bring their deadliest ideas to life and share them on Steam Workshop. With over 10,000 custom scenarios already released - there is always something new to infect!
Blinding Graphics - Full 3D disease models take you closer to your plague than ever before, city-cams show humanity's struggle at street level, and the body scanner highlights the full effect of your mutations, organ by organ.
Deadly Data - Geek out with stats and graphs; monitor infection and death levels, track government reactions and cure efforts, then review your plague's success (or failure!) with full game replays.
And much more... - Including speed runs, Mega-Brutal difficulty and genetic modification... Plus loads of new disease types and scenarios in future (free!) updates.
Screenshots
22 images
Version Information
Steam Patch Notes
Official update history
Glad you're all enjoying the update and the new DLC!
Thanks for all your reports and feedback!
Bug Fixes
General
Fixed issue with multiple translations having English language words present
Improved conditions for unlocking Cheats
Fixed an issue where news headlines from the last game would appear after starting a new game
Fixed issue where Zombies or other population types wouldn't appear on the world bar in their prescribed colour
Improved stability for rare crash situations
Xenolith
Fixed issue where G-COM would continue to contribute research after death
Improved conditions for event that would state Xenolith is "not dangerous to humans" when it has already infected humans
Scenarios
Fixed issue where save files for Leprosy would say it was a Parasite disease type
Improved conditions for "Get 3 biohazards with each disease..." achievements such as Mr. President
Multiplayer
Fixed issue with Multiplayer government actions not activating when conditions were met
Fixed issue where players could not select a country in Co-Op
Glad you're all enjoying the update and the new DLC!
Thanks for all your reports and feedback!
Bug Fixes
General
Fixed issue with multiple translations having English language words present
Improved conditions for unlocking Cheats
Fixed an issue where news headlines from the last game would appear after starting a new game
Fixed issue where Zombies or other population types wouldn't appear on the world bar in their prescribed colour
Improved stability for rare crash situations
Xenolith
Fixed issue where G-COM would continue to contribute research after death
Improved conditions for event that would state Xenolith is "not dangerous to humans" when it has already infected humans
Scenarios
Fixed issue where save files for Leprosy would say it was a Parasite disease type
Improved conditions for "Get 3 biohazards with each disease..." achievements such as Mr. President
Multiplayer
Fixed issue with Multiplayer government actions not activating when conditions were met
Fixed issue where players could not select a country in Co-Op
Glad you're all enjoying the update and the new DLC!
Thanks for all your reports and feedback!
Bug Fixes
Fix for game endings under certain circumstances
Fixed an issue with infection rate in the "Where is Everyone" scenario (fun fact - this was a stealth bug from 2017!)
Fixed a display issue with the 3d disease model when skipping through the game setup quickly
Glad you're all enjoying the update and the new DLC!
Thanks for all your reports and feedback!
Bug Fixes
General
Unlocking Cheats no longer requires completing Xenolith
Fixed Zombies showing as "Recovered" in some circumstances
A few rare crashes fixed
Xenolith
Fixed issue where people wouldn't be infected in situations where the population density is low (e.g. Where is everyone scenario)
Fixed an issue where "Metabolic Hijack" wouldn't pop bubbles on a fully xeno-formed country
Scenarios
Fixed issue where Leprosy would display as "Parasite" instead of "Bacteria"
Updated leprosy score mod
Glad you're all enjoying the update and the new DLC!
Thanks for all your reports and feedback!
Improvements
Added "Shape the future" poll for Plague Inc - players can vote on what's next for Plague Inc.
Improved crystal tracking during the game replay for Xenolith
Balance updates
Scenarios
Leprosy: Starting DNA and trait costs tweaked
Leprosy: Score multiplier increased (easier to get 3 biohazards)
Bugfixes
Fixed the fill for the "Scenarios Completed" progress bar
Fixed "Vampires rule the world" victory screen text when playing Xenolith and killing all humans
Fixed an issue where the score in Xenolith could become negative
Fixed an issue where the Lattice Shedding gene generated too many crystal seeds when lots of countries or whole continents aligned. (Particularly on higher difficulties.)
Fixed an issue where the "Percentage Cured" could show an incorrect value on Xenolith save files
Glad you're all enjoying the update and the new DLC!
Thanks for all your reports and feedback, we're getting straight on it and have more fixes coming throughout the week.
Improvements
Humans will more intelligently deploy Meteor Defense technology when needed
GCOM are now able to research Xenolith more easily if it has large amounts of unused XNA
Balance updates
Scenarios
Reduced starting infectivity in the Leprosy scenario
Updated scoring for Zombies vs Earth and Herd Immunity scenarios
Updated win requirements for the Herd Immunity scenario
Xenolith
Multiple Asteroid impacts damage planet and reduce passive XNA gain (Brutal+)
Saving up too much XNA will reduce passive XNA gain if Xenolith isn't big enough (Brutal+)
Bugfixes
Fixed a variety of localisation issues
Fixed an issue where the double strain cheat created infected in the Zombies Vs Earth scenario
Fixed an issue where scenario completion achievements could be unlocked on casual difficulty
Fixed an issue where scenarios could show "0" on the victory screen
Fixed an issue where the Surgeon General advisor in Cure Mode had become locked
Fixed an issue where "XNA" could appear instead of "DNA" in Outbreak origin selection
Fixed the dollar sign displaying for active ability costs outside of Cure Mode
Fixed an issue where the human response might develop Xenolith traits
Fixed an issue where the Leprosy 3D model was appearing as a Parasite instead of Bacteria
Fixed an issue where the Xeno-Forming graph view could appear outside of Xenolith
Fixed an issue where devolving a lot of traits in Xenolith could reduce score
GCOM will now continue disruptor deployment even if they are in a country that recently stopped being disrupted
GCOM teams no longer take damage from xenoformed land if it is inert
Additional
Fixed issue with Custom scenarios not starting
Glad you're all enjoying the update and the new DLC!
Thanks for all your reports and feedback, we're getting straight on it and have more fixes coming throughout the week.
Improvements
Humans will more intelligently deploy Meteor Defense technology when needed
GCOM are now able to research Xenolith more easily if it has large amounts of unused XNA
Balance updates
Scenarios
Reduced starting infectivity in the Leprosy scenario
Updated scoring for Zombies vs Earth and Herd Immunity scenarios
Updated win requirements for the Herd Immunity scenario
Xenolith
Multiple Asteroid impacts damage planet and reduce passive XNA gain (Brutal+)
Saving up too much XNA will reduce passive XNA gain if Xenolith isn't big enough (Brutal+)
Bugfixes
Fixed a variety of localisation issues
Fixed an issue where the double strain cheat created infected in the Zombies Vs Earth scenario
Fixed an issue where scenario completion achievements could be unlocked on casual difficulty
Fixed an issue where scenarios could show "0" on the victory screen
Fixed an issue where the Surgeon General advisor in Cure Mode had become locked
Fixed an issue where "XNA" could appear instead of "DNA" in Outbreak origin selection
Fixed the dollar sign displaying for active ability costs outside of Cure Mode
Fixed an issue where the human response might develop Xenolith traits
Fixed an issue where the Leprosy 3D model was appearing as a Parasite instead of Bacteria
Fixed an issue where the Xeno-Forming graph view could appear outside of Xenolith
Fixed an issue where devolving a lot of traits in Xenolith could reduce score
GCOM will now continue disruptor deployment even if they are in a country that recently stopped being disrupted
GCOM teams no longer take damage from xenoformed land if it is inert
Additional
Fixed issue with Custom scenarios not starting
Glad you're all enjoying the update and the new DLC!
Thanks for all your reports and feedback, we're getting straight on it and have more fixes coming throughout the week.
Bug Fixes
Xeno-forming no longer appears on non-xenolith end screen graph
Localisation fixes - some text wasn't translating correctly - Known issue: There is still some text not translating, will be fixed tomorrow (Wednesday)
Balance
Brutal and Mega Brutal difficulty adjustments for Xenolith (slightly less XNA, Research goes faster, abilities cost more XNA)
Xenolith XNA adjustments
Quality of life
Final Xeno-form graphic updated
Xenolith: "Frequency Shift" can now be used against Prototype Disruptors
Tooltips updated for Xenolith
Known Issues - Fixes Coming
Known issue: Multiplayer modes not displaying infected countries correctly. Fix expected tomorrow (Wednesday)
Known issue: A few bits of text are still not being translated correctly. Fix expected tomorrow (Wednesday)
Known issue: Leprosy "Rapid Abcesses" description incorrect
[dynamiclink href="https://store.steampowered.com/app/4508320/Plague_Inc_Aliens__AntiVaxxers/"]
Our newest DLC: Aliens and Anti-Vaxxers is available now! It brings a brand new special disease type and six scenarios with conspiracies, demons and hordes of zombies!
But that's not all! There's free Leprosy for everyone in the new 1.23 Update.
[dynamiclink href="https://store.steampowered.com/app/4508320/Plague_Inc_Aliens__AntiVaxxers/"]
Xenolith: The Alien Crystal plague
From the infinite depths of space comes an utterly alien plague type. Radically new gameplay, mysterious victory conditions, interstellar genes, haunting music and much more. The world will never be the same again.
Xeno-form the Planet!
Penetrate the Earth’s crust and begin a geological process to convert everything into pure, alien crystal. If any native lifeforms get in the way - simply shatter them in an unstoppable resonance cascade.
Extinction Event!
Use gravitational anomalies to pull meteors out of orbit. Choose whether to focus on crystal geodes to spread infection, EMP bursts to disrupt human technology or even vast, continent killing asteroids from deep space!
Resistance is futile
Humans are utterly insignificant but they can still disrupt you if left alone. G-COM will intelligently deploy advanced technologies including disruptors, defensive satellites, cloud seeding, alien powered computers, artificial tsunamis and more.
Six New Scenarios
Sometimes even an alien plague threatening the entire galaxy isn’t enough to get you out of bed. Well don’t worry - we have you covered with a whole host of major new scenarios that add new gameplay mechanics, mix up strategies and add new narratives. Read on for demons, herd immunity, endlessly marching zombies and more.
Anti-Vax
Faith in vaccines is collapsing. Global vaccination campaigns fight to hold the line, but weaponised conspiracies and viral misinformation are infecting the truth! What's the worst that could happen?
Hell on Earth
It's time to subjugate the world! Unleash a heat-loving, hell-spawned plague to corrupt people, animals and even the world itself. Satan is waiting in the depths...
Zombies vs. Earth
A melting glacier unleashes a forgotten nightmare. Greenland falls to the zombie hordes overnight! There is no virus, no cure, only the relentless march of the undead. Can they consume the world?
Check out the store page to read about Measles, Herd Immunity and Cure Mania!
[dynamiclink href="https://store.steampowered.com/app/4508320/Plague_Inc_Aliens__AntiVaxxers/"]
Update 1.23 - Special bonus for everyone: Leprosy
Good news, everyone can have leprosy for free - even if they don’t have the new Aliens & Antivaxxers DLC. To experience it first hand, just update the game and it will be there waiting for you!
Leprosy
Leprosy still infects around 200,000 new people every year, but it's dying out. Can you overcome modern treatments, social stigma and long incubation periods to bring Leprosy back into the headlines?
Will A&A ever be given away for free?
Some of you may have got our first DLC Plague Inc: The Cure for free. That is because we gave it away for free during the COVID pandemic as we didn’t want to profit from a serious health situation.
If an alien invasion* happens - Ndemic will adopt the same approach and give A&A away for free for the duration of the invasion.
*Invasion is defined as an alien entity commencing a military offensive intended to establish control over any portion of Planet Earth…
Got more questions? Check out the FAQ here:
https://steamcommunity.com/app/246620/discussions/0/797839485450717782/
Update 1.23 Changelog
New Features & Content
Added Official Scenario: Leprosy (Free for all players)
Xenolith - New Special Plague Type (Requires Aliens & Anti-Vaxxers)
Added Official Scenarios: Anti-Vax, Hell On Earth, Zombies Vs Earth, Measles, Herd Immunity and Cure Mania (Requires Aliens & Anti-Vaxxers)
Bug Fixes
Fixed Nanovirus not being impacted by blue Cure Bubbles
Fixed Tutorial blocker when being asked to select a country
Fixed issue where players could not progress in Cure Mode tutorial
Fixed issue where playing on Casual would affect Speedrun scores
Fixing additional issues found in the last patch, thanks for your reports!
Fixed an issue where the cursor would be invisible on Steam Deck
Fixed an issue where the cursor would not show the active ability icon when an active ability was selected
Fixed an issue where buttons were selected in Multiplayer resulting in accidentally leaving a lobby when previously it would allow you to continue talking in the lobby
Ndemic Creations
Current Release
22889582
Uploaded May 28, 2026
System Requirements
How to Install
PlagueIncEvolved.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
794 MB
22889582
CB738649
0c98beabcbd1b0cc735d33aecad9bf149d7c2e0dfecce0a781e7e38582b0d0f7
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