Infectious
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.
Offers
What are keyshops?About Infectious
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.
Game details
Game details
Age ratings
Game modes
Infectious price history
Lowest tracked price: $1.59 (Jul 13, 2026) · current best: $3.99.
Infectious player count & reviews
66% positive reviews all-time · 2 peak players in the last 30 days.
Infectious — frequently asked questions
Where can I buy Infectious at the cheapest price?
Right now the cheapest offer for Infectious is $3.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Infectious has ever been?
The lowest price KingsPrice has tracked for Infectious is $1.59 (recorded on Jul 13, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play Infectious?
Infectious peaked at 2 concurrent players on Steam in the last 30 days (highest on Jul 15, 2026). The player chart on this page updates daily.
How can I get Infectious at a discount?
Create a free price alert on this page and KingsPrice will email you when Infectious drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- Requires a 64-bit processor and operating system
- OS *: Windows 7
- Processor: 2.0 GHz Dual Core Processor
- Memory: 1 GB RAM
- Graphics: Integrated Graphics (512MB)
- Storage: 300 MB available space
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 10
- Processor: 3.0 GHz i5 Dual Core or equivalent
- Memory: 2 GB RAM
- Graphics: Nvidia GeForce GTX 650 Radeon HD 3600 (1GB)
- Storage: 600 MB available space
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