Database
CompareRules are for losers
SymptomsRules are for Losers is an exclusive achievement of the Cure Mode, which is obtained after combining certain operations with a response.

Runner
AchievementsDiscover the Runner combo

Runner
SymptomsEnhanced Motor Control and Engorged Quadriceps allow some zombies to sprint and chase down their prey - increasing their severity
Rural Countries
MechanicsRural Countries are a type of country where the majority of the population doesn't live in cities, but in the countryside. Infection in Rural countries are slowed due to the remote environment of the country. They are more vulnerable to livestock transmissions than most countries.

Rurophile
GenesGive your plague a bonus in rural environments

Russia
CountriesA rural country. Typically has a cold, humid climate.

Russian Nuclear Retaliation
AchievementsMake the USA nuke Russia

S. E Asia
CountriesA poor, rural group of countries. Typically has a hot, humid climate.

Sadomasochist
AchievementsBeat Shadow Plague with no Shadow Slaves

Saliva 1
TransmissionsVirus replicates faster in salivary glands - increasing chance of infection through contact with saliva

Saliva 2
TransmissionsVirus replicates directly in nasal cavity - significantly increasing chance of infection through contact with mucus

Santa's Little Helper
ScenariosThe world is dark and gloomy. Boring governments worldwide have banned holidays, laughter and celebrations. Humanity has forgotten how to have fun - people dress in grey and spend all their time working. Luckily, the Neurax Worm has teamed up with Santa and is determined to infect the whole world with joy and happiness. Can Santa's little helper make a miracle happen?

Santa's Little Neurax Worm
SymptomsMind control can be a power for good! Breach the blood/brain barrier to access the host brain and start making them happy again...

Saudi Arabia
CountriesTypically has a hot, arid climate.

Scavenger
GenesVampire gets more DNA from destroying labs and Templar Bases
Scenario Creator
PathogensThe Scenario Creator is a feature formerly exclusive to Plague Inc: Evolved, and an app in the mobile version as a stand-alone app, with the option to create a custom scenario. It has the same base plagues (Bacteria, Virus, etc. and the expansions for you to use as a starting point) from the main game, and gives you the option of modifying the world's statistics (country name, population, healthcare budgets, etc.), in game events (recommended for expert users only), and a government actions at your disposal. The Scenario Creator is separated into 5 different parts (or labs). It isn't possible…

Scenario Master
AchievementsScore 3 biohazards in every Official scenario
Scenarios
ScenariosScenarios are a game mode in Plague Inc.

Schizophrenia
SymptomsEnflamed dopamine receptors fragment mental processes and increase infectivity. Can cause fatal fevers

Science Denial
ScenariosPeople no longer believe in science. Popular opinion has shifted against objective truth and towards 'alternative facts'. But when a terrifying new plague is unleashed, ginkgo tree extract, healing crystals and snake oil can only do so much. Can the exiled experts save the world?

Scouts
AbilitiesApe scouts communicate the location of ape Colonies to other intelligent apes. Apes will migrate from further away.

Seafaring
AbilitiesApes able to construct rafts to allow co-ordinated travel and migration over large bodies of water

Sebaceous excretion
TransmissionsVirus replicates in sebaceous glands and spreads through skin. Prolonged physical contact can trigger ape to ape transmission

Segmented Genome
TransmissionsVirus splits its genome into smaller molecules - increasing the likelihood of a viable mutation during transmission