Infectious

Simulation· Outbreak Sim· Survival Horror· Science

Released Aug 2020

Play as a lethal virus infecting various organs in your host's body while trying to outsmart the immune cells that seek to eliminate you and your kind. Generate clones and watch them propagate, infecting cells and taking down bosses.

67% positive · 83 reviews

Pending

Released · Awaiting evaluation

Pending

Released · Awaiting evaluation

Where to buy

Steam Updated 12 Oct 2026 $3.99

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Media

Details

Developer

Ziggy Makes Games

Publisher

Ziggy Makes Games

Achievements

—

Platform

Windows

Controller

partial support

Steam Deck

Not rated

Players

Single-player

Outbreak Sim Survival Horror Simulation Science Stealth Runner Realistic Atmospheric Arcade Survival Hand-drawn Casual Action Point & Click Replay Value

About this game

Take the role of a virus infecting multiple organs in your host. Outsmart and outrun the immune system. Collect DNA and use them to mutate, grow stronger and gain new abilities. Spawn viral clones to speed up your work. Compete with other microorganisms to be the dominant pathogenic species. And discover a beautiful microscopic world on a cellular level.

Game Features

Unlock different types of viruses (including an alien-like virus originated from space) with their own unique abilities.
Immune cells that mimic real-life immune response behavior.
Multiple upgrades and mutation abilities to give you an edge over your host's immune system.
Observe how viruses overwhelm the host's body on a cellular level.
Initiate chain reactions (in this case, chain infections) to gain incremental bonus from your clone's hard work.

The good news is that you don't need to be a microbiologist to enjoy this game!

INFECTIOUS is developed by a solo indie developer.