Plague Inc: Evolved Walkthrough

4. Necroa Virus

The Necroa Virus is a special disease type that adds in the feature of zombies to gameplay. The virus itself gets cured incredibly quickly, and the usual strategy is to create a large number of zombies capable of killing/infecting others before the cure is created. There are a large number of RNG pop-up scenarios that only appear for the Necroa Virus, so let's focus on those first. Start up the game on casual with the genes:

ATP Boost
Creationist
Aerocyte
Xerophile
Spliced Activation

Start in Ukraine and within the first 60 days evolve the Saliva I and Zoonotic Shift transmissions. If you don't have the DNA to evolve these within the first 60 days, restart. You will soon see a pop-up stating that a tourist in Chernobyl is recovering from a wild animal attack. SAVE here. Devolve anything else that comes up until you see a pop-up about a Chernobyl group being attacked by wild dogs, followed by another stating that the military was deployed in Chernobyl due to the rabid animals. Save up 45 DNA points and evolve:

Insomnia
Fever
Photophobia
Delirium
Cytopathic Reanimation

In some games, the zombie population grows so quickly, the Ukraine government falls and this achievements necessary story steps stop working. To prevent this, evolve the Horde Instinct ability. Then work to send zombies out of the country to other locations as need be to keep the population down. Moving your first group of zombies out into a surrounding country will earn you:

Flash Mob

Successfully use the Zombie Horde active ability

Flash Mob
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SAVE here. Now it's a waiting game for the remaining pop-ups. You can use your spare points to buy Re-Animate, bringing zombies back from the dead in a country or two for:

I'll Be Back

Successfully use the Zombie re-animate active ability

I'll Be Back
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Soon, you'll get a pop-up about how the plague originated in Chernobyl. Once the team continues their research, you'll get information on how Chernobyl animals are infected with the plague. Very shortly after, you'll get one more stating the Chernobyl animal tests were successful. Now evolve:

Blood I
Air I
Blood II
Air II
Air III

Your final pop-up will soon appear, granting you:

Breathe Deep

Infect the Chernobyl research team

Breathe Deep
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Now you can use the remaining time to get some other stuff. Evolve your zombies' fighting abilities and horde size, then move your zombies into the nearest Z-Com based country. Keep moving forces in until the base is destroyed, granting you:

Z Com: Enemy Undead

Destroy a Z Com fortress

Z Com: Enemy Undead
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Keep moving your horde around, killing and infecting new countries. As soon as you can, evolve:

Anaerobic Resuscitation
Enhanced Sensory Integration
Hyperosmia
Temporal Lobe Manipulation
Cathemeral Shift

These new symptoms grant you the Blood in the Air combo and:

Jaws

Discover the Blood in the Air combo

Jaws
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Evolve:

Enhanced Motor Control
Peptide Surge
Dermal Calcification
Cranial Elephantitis

This will get you:

Use your head

Discover the Cranial Dispersion combo

Use your head
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Evolve:

Structured Travel
Dyskinetic Movement
Echopraxia
Engorged Quadriceps

This will give you:

Runner

Discover the Runner combo

Runner
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Load your save. Wait until you see that Chernobyl is being investigated, and at this point immediately devolve Zoonotic Shift. Shortly thereafter, another pop-up should appear, saying there is no link to the animals spreading this disease for:

Hide and Seek

Prevent link with Chernobyl exclusion zone

Hide and Seek
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Load your save again. Wait for all the pop-ups to take their natural course, up until you see the one about the animals being captured by the military for testing. Evolve Bat I and II now, and wait for the final pop-up about the animals being too dangerous to test for:

Test This!

Force Chernobyl research to be put on hold

Test This!
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With that done, you can move on. Start the game on casual with:

ATP Boost
Creationist
Native Biome
Zerophile
ThermoNecro

Start in the UK. Within the first 60 days, evolve the Segmented Genome and Saliva I transmissions. A pop-up message should appear shortly about how PfiGlax has a cure for AIDS. After that, two side stories should appear in red, "Blog claims PfiGlax struggling with virus mutation", and "PfiGlax executives in huge share sell-off". After this one occurs, evolve:

Insomnia
Fever
Photophobia
Delirium
Cytopathic Reanimation

SAVE here. Now you should see another pop-up about how PfiGlax is linked to the virus.

Now you can evolve:

Autolytic Delay
Putrefactive Resistance
Liquiefactive Resistance

Shortly after, you'll get your final pop-up and:

Banana Skin

Prevent PfiGlax modifing the Necroa Virus

Banana Skin
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Now you can evolve:

Anaerobic Resuscitation
Enhanced Motor Control
Peptide Surge
Acidic Reflux
Naja Mortis
Autothysis
Regenerative Activation
Ambush Predation
Liquefactive Necrosis

This will earn you the Boomer combo and:

Boomer

Discover the Boomer combo

Boomer
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Finish up this set by evolving:

Enhanced Sensory Integration
Temporal Lobe Manipulation
Cathemeral Shift

This shall earn you:

Walking Contradiction

Discover the Walking Contradiction combo

Walking Contradiction
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Now, reload your save. Wait until you get a pop-up about PfiGlax manipulating your virus. Evolve:

Heat/Cold Resistance I
Mummification

Soon after this, you'll get another pop-up and:

Don't Ask Me

Make the PfiGlax modification project fail

Don't Ask Me
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Reload your save again. Evolve:

Drug Resistance I
Genetic Hardening
Genetic Reshuffle I and II

Now you'll get another pop-up about there being no link to PfiGlax. This will grant you:

Due Diligence

Stop PfiGlax finding a link to the Necroa Virus

Due Diligence
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Start a new game on Necora Virus normal difficulty. For this, any of the genes are acceptable so just run with whatever you're most comfortable with. The only one I'd definitely recommend is ATP Boost.

Start in the USA and evolve Saliva Transmission and Drug Resistance I within 60 days. If all goes well, you'll get a pop-up regarding DarkWater very early on. SAVE here. Wait for the pop-up about DarkWater denying a weapons facility breach, then another shortly after regarding DarkWater shutting down said facility. Now evolve:

Insomnia
Fever
Photophobia
Delirium
Cytopathic Reanimation

Wait for a pop-up message about DarkWater admitting they created the virus. SAVE again here.

We need to wait for another popup message this one is about how DarkWater successfully analyzes the virus and they're confident it will help fight the zombies. Now evolve Genetic Hardening, waiting until the last pop-up appears for:

Dead End

Stop DarkWater from discovering a Necroa Virus weakness

Dead End
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Since you have some time and DNA, evolve:

Anaerobic Resuscitation
Enhanced Sensory Integration
Enhanced Motor Control
Peptide Surge
Acidic Reflux
Naja Mortis

You shall be given the Spitter combo and:

Spitter

Discover the Spitter combo

Spitter
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Finish up this run with the following symptoms:

Enhanced Motor Control
Masticatory Tension
Anabolic Boost
Peptide Surge
Dermal Calcification
Cranial Elephantitis
Bone Dysplasia

The Tank combo grants you:

Tank

Discover the Tank combo

Tank
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Now reload your last save. Evolve the Segmented Genome transmission.

Once you get the pop-up, you'll unlock:

Non Starter

Stop DarkWater from analysing the Necroa Virus

Non Starter
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Reload your last save again. Once you see DarkWater has successfully analyzed the virus, evolve the following symptoms:

Anaerobic Resuscitation
Enhanced Motor Control
Peptide Surge
Acidic Reflux
Naja Mortis
Autothysis

You should get a message about DarkWater Z-Rest device test and another pop-up about it failing, once you get that you will unlock the final DarkWater achievement:

Big Bang

Kill the DarkWater research team

Big Bang
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Start up another game on casual with the following genes:

ATP Boost
Genetic Mimic
Aquacyte
Extremophile
Dopamine Inhibitor
Start in Egypt and evolve:
Saliva I
Heat Resistance I

You will now wait out a series of a few pop-ups, stating there was a tomb found in the pyramid of Giza. Wait until you get the news banner announcing that a body inside the pyramid has odd bite marks on it. This will come up after the hieroglyphics warn of an ancient plague. This is where you want to SAVE. Now evolve:

Insomnia
Fever
Photophobia
Delirium
Cytopathic Reanimation
Horde Instinct
Horde Mentality
Horde Vocalisation
Horde Pheromones
Structured Travel

Now keep an eye on Egypt, moving hordes of zombies OUT of the country if their number surpasses 4 million. That could lead to a government collapse, which is unwanted. Keep zombie numbers limited until you get the pop-up saying the plague escaped from the tomb inside the pyramid. A pop-up will appear saying that "Archaeologists say that Necroa may have escaped from a secret tomb inside The Great Pyramid of Giza."

Devolve Heat Resistance I
Evolve Cold Resistance I and II

The tests will show the disease is more resilient to cold, and unlock:

Getting Colder

Trick the Egyptian DNA tests

Getting Colder
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Load your save and evolve:

Insomnia
Fever
Photophobia
Delirium
Cytopathic Reanimation

Now wait for some pop-ups, the first few about the pyramid and how the virus originated from the tomb in it. The one you want to see is when reports confirm the virus originated from the tomb. The next one will be about a planned investigation into the tomb. Now evolve:

Cold Resistance I
Mummification
Regenerative Activation
Ambush Predation
Liquefactive Necrosis
Regenerative Biosynthesis
Epidermal Digestion
Cranial Metastasis
Autolytic Delay
Putrefactive Resistance
Liquefactive Resistance

Now just wait for the final pop-up about the expedition being a failure for:

It's a Trap!

Wipe out the Giza expedition

It's a Trap!
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Load up your save again and evolve:

Zoonotic Shift
Insect I
Rodent I and II

Wait for the pop-up message that says your plague's DNA supports Giza link. Then evolve:

Autolytic Delay
Putrefactive Resistance
Liquefactive Resistance

Wait for the pop-up message stating the Giza pyramid expedition was successful. Now evolve:

Symptoms Anaerobic Resuscitation
Enhanced Motor Control
Peptide Surge
Dermal Calcification
Cranial Elephantitis

The next pop-up will talk about the military losses and earn you:

Revenge of Osiris

Invalidate the knowledge of the pharaohs

Revenge of Osiris
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Start a new game on casual with the genes:

ATP Boost
Genetic Mimic
Aquacyte
Xerophile
ThermoNecro

Start in India, SAVE, and evolve:

Hyper Salvation
Polyphagia
Gastroenteritis
Autophagia
Cannibalism

That's all there is to it. Now just wait for the combo to pop up for:

Tasty

Discover the Bath Time combo

Tasty
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Load your save and evolve:

Zoonotic Shift
Bat I
Bat II
Insomnia
Fever
Photophobia
Delirium

Save up 50 DNA before proceeding to evolve:

Cytopathic Reanimation
Anaerobic Resuscitation
Enhanced Sensory Integration
Temporal Lobe Manipulation
Cathemeral Shift
Vampiric Hunger

As long as all of this stuff gets unlocked before the cure is complete, you should get the pop-up about infectious bats and:

Is it a bird?

Discover the Vampire Bat combo

Is it a bird?
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Load your save again. This time, follow the zombie evolution tree to make the undead, and just wait. Wait and wait until you get a pop-up about a boom in the insect population. Once you see this, evolve Zoonotic Shift for:

Who needs DEET

Avoid insect bites

Who needs DEET
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Fire up a game on Mega-Brutal, this one is gonna be tough. Equip the following genes:

ATP Boost
Darwinist
Suppression
Xerophile
Spliced Activation

We'll be starting our plague in Saudi Arabia and evolving:

Hyper Salivation
Polyphagia
Gastroenteritis

Try to avoid sterilization events, restart if one happens to pop up. You want as many countries infected and prime for zombification as possible. Continue by evolving:

Blood I
Air I and II
Cannibalism
Cytopathic Reanimation
Blood II
Air III
Anaerobic Resuscitation
Enhanced Motor Control
Peptide Surge
Acidic Reflux
Naja Mortis
Autothysis

Those symptoms place an emphasis on zombie combat, making the threat of Z-Com seem insignificant if you can get the numbers to combat them. Now, let's focus on getting those numbers up.

Horde Instinct
Stuctured Travel
Drifting Fermentation
Dyskinetic Movement
Echopraxia
Engorged Quadriceps
Horde Mentality
Horde Vocalisation
Horde Pheromones

This part of the strategy will dictate if you're going to be able to finish fast. Obviously, you'd want to send your zombie hordes to uninfected island countries first, then focus on Z-Com bases if possible. Pause the game if you plan to use multiple zombie hordes. Pausing could be of great help in planning where to send your zombies. Also note that when you use zombie hordes while the game is paused, the horde bubble won't appear yet, it'll only appear once you resume the game.

Greenland could be infected from Canada, Iceland, the USA, or even Brazil. Do this when one gets a heavy swarm of zombies first.

Madagascar is easily infected from East Africa or Saudi Arabia

Philippines can be easily infected through China. The same can be said for Japan and Korea.

Indonesia can be infected through India, and New Guinea through Philippines or Indonesia

Move zombies from Mexico to the USA and Caribbean, if necessary.

The European cluster countries will be hard to infect so be sure to send zombies there as soon as you can, especially if you notice a closure in land borders.

From Libya and Morocco, you could easily infect the southern part of the European countries(Spain, Italy, etc.)

From Turkey, you can infect Central Europe and Ukraine

From Russia, sending zombies to Finland is a very good idea.

You might also want to send zombies to Norway and Sweden from Canada and Iceland.

Finally, if you're close to Z-Com base, especially if it's the first one, send one or two hordes there immediately

You won't only have to move zombie hordes, but also evolve some more combat symptoms. This is totally up to you on when you think you need to evolve the following, so save up 40-50 points and get:

Dermal Calcification
Cranial Elephantitis
Bone Dysplasia
Masticatory Tension
Lumbrical Hypertrophy

If you're able to effectively move your zombies, you'll be able to destroy Z-Com easily. If Z-Com begins their base in Greenland, you're extremely lucky, because sending one zombie horde from a country with millions of zombies will quickly destroy Greenland. The smaller the country population, the more easily they can be destroyed by a few large hordes.

The worst place for Z-Com to start is in any country in Europe. Central Europe, Germany, Poland, and Spain all have huge populations, and zombies are often spread thin across the continent. The game is still totally winnable if Z-Com starts here, just try to kill them off quickly. Once the world has fallen into the jaws of the dead, you shall unlock:

Necroa Master

Beat Necroa Virus disease type on mega-brutal difficulty

Necroa Master
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The Glorious Dead

Win a game with the Necroa Virus

The Glorious Dead
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Now for the absolute worst one by far. You have to win this entire scenario without evolving Cytopathic Reanimation. That means even if it mutates on its own, you're screwed out of this one. Make a bunch of saves whenever you feel like you made progress, and be very patient about the pop-ups. It took me about 40 tries to get the first one. With that said, start a game on casual with the following genes:

Cytochrome Surge
Creationist
Aerocyte
Xerophile
None

Start in India and evolve:

Saliva I
Zoonotic Shift
Bat I

Keep an eye on the news banner and wait for the news to appear that says: "Colony of rabid bats triggers town evacuation". If this doesn't appear by the time shortly after India is completely infected, start over. This took me 40+ tries to get.

Devolve Bat I

Evolve:

Drug Resistance I
Genetic Hardening
Genetic Re-Shuffle I and II

Wait for some more news about the WHO starting Rabies Eradication Initiative and the film about the rabies epidemic becoming a global hit. Once you get these, save up 70 DNA and evolve:

Gastrointestinal Expansion I and II
Cold Resistance I and II

Wait until the world is completely infected and evolve:

Insomnia
Fever
Photophobia
Coma
Acute Encephalitis
Hyper Salivation

You'll get a pop-up stating that your disease is a form of rabies. Once you do, immediately devolve Zoonotic Shift. Another pop-up will appear declaring the link to rabies to be false. After seeing this pop-up, the cure should slow down significantly and after a while should stop completely. You are now free to eradicate humanity without the use of zombies. The whole process of killing takes a long time, a really really long time. SAVE here. This is where your patience will be slightly tested. Make sure that Cytopathic Reanimation does NOT evolve under my circumstances, reload your save if it does. Just put the game on max speed and ride it out. Once everyone is dead, you'll unlock:

Not Another Zombie Game

Win a game with the Necroa Virus without making a single zombie

Not Another Zombie Game
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Congratulations on completing Necroa! Now onto the even bigger pain in the ass, the Simian Flu...

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