Infectious

Action simulation about spreading infection while evading the immune system

Ziggy Makes Games · Released Aug 20, 2020

Reviews: Mixed; 65% of 82
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 2 years ago; Jun 13, 2024
Minimum PC: Integrated (512MB); 1 GB RAM · 0.3 GB disk; Full requirements

What is Infectious?

In this single-player action simulation, you control a virus inside a host's organs. You infect cells, collect DNA for mutations, and spawn clones to help spread infection while competing with other microorganisms. You can unlock virus types with different abilities.

For you if...

+you prefer shorter games over lengthy campaigns

Not for you if...

−you want a large selection of playable viruses
−you prefer constant hands-on action over letting clones work

What players say

65% of 82 reviews are positive

Players praise the depiction of cellular life. Common complaints include slow openings, repetitive infection tasks, and unreliable clone behavior.

Screenshots and trailer

Infectious system requirements

Minimum: Integrated (512MB), 1 GB RAM, 0.3 GB of disk space.

As published by the developer.

Can my PC run Infectious?

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Minimum

OS: Windows 7
Processor: 2.0 GHz Dual Core Processor
Graphics: Integrated Graphics (512MB)
Memory: 1 GB RAM
Storage: 300 MB available space

Does Infectious have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does Infectious run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Steam features: Cloud saves, Family Sharing
Languages: Full audio: English. Text only: German, Russian.

Does Infectious use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam