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Healthy Eater
GenesIncreases vampire maximum health
Heart of Darkness
AchievementsSend your vampire into a Blood Rage
Heat Resistance 1
AbilitiesPathogen evolves to withstand hot temperatures and climates
Heat Resistance 1
Mechanics11 (7 in the Necroa Virus), 8(Neurax Worm)
Heat Resistance 2
AbilitiesPathogen avoids cellular breakdown in high temperatures. Increased effectiveness in hot climates
Heat Resistance 2
Mechanics22 (17 in the Necroa Virus or Neurax Worm)
Heat Resistance 3
MechanicsPathogen avoids cellular breakdown in high temperatures. Increased effectiveness in hot climates
Heat Tolerance
AbilitiesEach lair built in a hot country will help the Shadow Plague increase its effectiveness in hot countries
Hell on Earth
ScenariosIt'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...
Hello, World!
AchievementsAwaken an alien consciousness
Hemorrhagic Shock
SymptomsSevere loss of blood volume causes oxygen deprivation, loss of consciousness and death
Hendra Traits
MechanicsPathogen develops traits of the equine Hendra virus, increasing selection of host animals
Hepatic Failure
SymptomsChronic replacement of normal liver cells with scar tissue causes liver to fail, resulting in rapid death
Herd Immunity
ScenariosWhat 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?
Hermetic Storage Resilience
TransmissionsMinor protein alterations raise chance of pathogen remaining active via long haul food suply chains. Increases ship and plane transmission.
Hide and Seek
AchievementsPrevent link with Chernobyl exclusion zone
Highway to Hell
AchievementsBeat the Hell On Earth Scenario on Normal
Historic Reassortment
AbilitiesGives ability to access the genetic sequence expressed in the 1918 flu. Highly lethal strain.
History of Plague Inc.
PathogensThis article covers the version history of Plague Inc., aka "mutation". Info on the updates can be found on the official website.
Home Sweet Home
AchievementsSet up a vampire lair
Hominidae Bridge
TransmissionsApe and human forms of virus able to efficiently jump between species. Increases mutation change and enables cross-species transmission
Horde Instinct
AbilitiesActive ability lets Zombies form hordes to travel across land and water and attack new lands
Horde Mentality
AbilitiesZombies more likely to follow others. Zombie horde size increases into the thousands
Horde Pheromones
AbilitiesHorde leaders produce pheromones to attract zombies to them. Zombie hordes can be millions strong