A rapidly mutating pathogen which is extremely hard to control.

Plague Type:


Special Ability:

Viral Instability


Complete Bacteria on normal or higher (All platforms)
Buy for $0.99 USD (iOS)

Release date:

May 23, 2012, Version 1.0

Virus is a standard plague type in both Plague Inc. and Plague Inc: Evolved.


In game Edit

The Virus is a standard plague type introduced in version 1.0. It possesses a high natural tendency to mutate traits, but it struggles to neutralize said mutations which requires a different play-style that relies on fast enough infection to nullify any human counter-attack. The gene Darwinist best complements this natural ability, while Creationist can make the mutation rate seemingly more controllable.

In real lifeEdit

Viruses are self-replicating, microscopic entities that exist on the fringes of what is known as life. They have a unique set of characteristics that are not found anywhere else in our known world. They are completely dependent on living host cells to replicate, and they will in fact appear completely dead if outside of their host cells. Some common diseases include: The common cold, influenza, chicken pox, gastroenteritis, cold sores, Ebola, AIDS, avian influenza (Also called "Bird flu"), and SARS.

Special AbilityEdit

The special ability for Virus is Viral Instability. It makes DNA unstable, which further increases the number of random mutations to occur.


Please see Virus Strategy Guides.

Trivia Edit

  • The Virus was one of the 3 plagues from Pandemic, the spiritual predecessor to Plague Inc., alongside with Bacteria and Parasite.
  • The virus playable is said to have DNA; in real life, DNA viruses are relatively stable, while the RNA viruses are known to be genetically unstable, with differing degrees: Flu change its antigens in one to two years, while viruses like HIV mutate constantly.

Stages of Evolution Edit

Standard Plague Types