Mutation

Systemic Infection randomly mutating in Plague Inc: Evolved

Mutation is a gameplay mechanic that affects plague evolution. Mutation is the chance of a plague randomly evolving a symptom (or transmission or abilities with the proper Genetic Code) for free. Mutations can only evolve a trait if the trait is available to be evolved by the player. Mutation chance can be increased by evolving Immune Suppression or the transmissions, Insect, Blood, Extreme Hematophagy, Bird, Rodent, Livestock and Extreme Zoonosis.

Starting mutation chance

Unlockable order	Disease Name	Mutation chance
1	Bacteria	0.5
2	Virus	2
3	Fungus	0.5
4	Parasite	0.5
5	Prion	0.5
6	Nano-Virus	0.5
7	Bio-Weapon	0.5
8	Neurax Worm	0.01
9	Necroa Virus	0.01
10	Simian Flu	1.5
11	Shadow Plague	0

Traits that affect mutation

• Bird 1 - +1
• Bird 2 - +2
• Bird 2 - +0.2
• Rodent 1 - +0.5
• Rodent 2 - +1
• Livestock 1 - +0.5
• Livestock 2 - +1
• Extreme Zoonosis - +3
• Blood 1 - +0.5
• Blood 2 - +1
• Insect 1 - +0.4
• Insect 2 - +1
• Extreme Hematophagy - +1
• Immune Suppression - +1
• Viral Instability 1 - +1
• Viral Instability 2 - +1.5
• Viral Instability 3 - +2
• Genetic Swap - +0.5
• Corpse Feeder 1, Corpse Feeder 2 - +0.1
• Mutative Regeneration 1 - +1
• Mutative Regeneration 2 - +2
• Segmented Genome - +2.5
• Saliva 1, Saliva 2 - +0.1

Genes that affect mutation

• Darwinist - +0.4
• Creationist - -0.4