DLC / add-on · Ndemic Creations
Plague Inc: Aliens & Anti-Vaxxers
- Co-op
A meteor from outer space carries an utterly alien plague type. Humans are irrelevant - can you transform the planet into a solid crystal?
Before you buy
- Redeem on
- Steam clientPC: Windows, macOS, Linux. Needs a free Steam account.
- Activates in
- Europe and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom.Activates on accounts registered in the EU, EEA, Switzerland and the United Kingdom.Will not activate on accounts registered in North America, Asia, Latin America or Oceania.
- You get
- A digital activation keyAn add-on. You need the base game on the same account.
- Delivery
- To your account and by emailDelivered to your account and by email once it is ready. Some orders get a short manual check first.
Trailers and screenshots
About this add-on
In this Special Disease type, crash your meteor into Earth and begin transforming it into a crystalline paradise of your own making.
Change the World
Crystalise the world from the streets to the core of the planet. Pass the crystallisation onto humanity, shatter their bodies into tiny pieces.
Watch the Skies!
Bring meteors from space to spread your infection, destroy research or even an entire country!
Race to Research
Humanity will deploy specialist dynamic responses to your actions. Fight back before they destroy you!
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?
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...
Herd Immunity
What doesn't kill humanity makes it stronger. In this upgraded simulation, infected people may now recover from diseases and develop a natural immunity to prevent reinfection. Can Herd Immunity save the world?
Measles
Measles is one of the most preventable diseases in the world thanks to modern vaccines, but misinformation and dangerous new mutations could lead to a deadly resurgence. Can you bring Measles back from the brink?
Cure Mania
The world’s gone cure crazy! Scientists are obsessively coordinated, sharing breakthroughs in real time across every border. Cure planes will launch earlier, and *much* more frequently.
Can your disease survive when the skies are painted blue?
Leprosy
Leprosy still infects around 200,000 new people every year due to social stigma and long incubation periods but thanks to modern medicine, it's fully treatable. Can you save humanity's oldest disease from long-term decline?
Description, images and details are taken from this product's Steam page.
Details
- Developer
- Ndemic Creations
- Publisher
- Ndemic Creations
- Base game
- Plague Inc: Evolved
- Released
- 7 Apr, 2026
- Genres
- Strategy, Simulation, Horror, Multiplayer/MMO, Indie, Casual
- Runs on
- Windows, macOS, Linux
- Activates on
- Steam client, Europe and UK
- Interface
- English, French, German, Russian, Spanish - Spain, Italian, Portuguese - Portugal, Portuguese - Brazil, Simplified Chinese, Traditional Chinese, Japanese, Norwegian, Polish, Turkish, Korean
- Full audio
- English, French, German, Russian, Spanish - Spain, Italian, Portuguese - Portugal, Portuguese - Brazil, Simplified Chinese, Traditional Chinese, Japanese, Norwegian, Polish, Turkish, Korean
- Single-player
- Multi-player
- PvP
- Online PvP
- Co-op
- Online Co-op
- Downloadable Content
- Steam Achievements
- Steam Trading Cards
- Steam Workshop
- Camera Comfort
- Custom Volume Controls
- Adjustable Difficulty
- Mouse Only Option
- Playable without Timed Input
- Save Anytime
- Stereo Sound
- Partial Controller Support
- Steam Cloud
- Stats
- Steam Leaderboards
- Includes level editor
- Remote Play on Tablet
- Family Sharing
Activating it on Steam client
- Open the Steam client and sign in.
- Choose Games in the top menu, then Activate a Product on Steam.
- Paste the key and confirm. It appears in your library.
- You need the base game on the same account.
The key is listed for the Europe and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom. region. Read how regions work before you buy.