
Signal Zero
Humanity is enslaved by AI. Your keyboard is the last weapon. Inject viruses into the AI network and liberate 20 countries in this pandemic-style idle strategy. Build your virus, spread the infection, sever the AI's bandwidth. Full localization, 16 achievements.
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What are keyshops?About Signal Zero
Hack the world. Reclaim humanity.
Signal Zero is an idle x strategy simulation set in a dystopia ruled by AI. You build viruses, inject them into the AI network, and tear it down from the inside.
You are the resistance leader
Humanity is enslaved. Forced to mine resources, generate training data, and maintain the AI's infrastructure.
But it isn't over yet.
Build your virus. Inject it. Reclaim the world, one area at a time.
How it plays
- Build your virus - Combine frameworks, protocols, and modules to design your own
- Pick your starting country - 20 countries, each with unique difficulty
- Spread the infection - Auto-propagating. Will the AI's patch outrun your virus, or vice versa?
- Unlock skills - Earn cores, expand the skill tree, evolve your virus
- Liberate the world - All areas liberated = victory. Full purge = defeat
Strategy
- Bandwidth warfare - Take down communication infrastructure to fragment the AI's coordination
- Cat & mouse with patches - Outpace AI countermeasures with stealth, resistance, and adaptation
- Hierarchy - Country and area, each demanding different tactics
- Hardware progression - Persistent meta progression to permanently augment your skills
Features
- 16 achievements - Cumulative infection, speed clears, no-detection runs, and more
- 4 virus archetypes - Infectivity / Stealth / Destruction / Adaptation
- 3 difficulty tiers - EASY / NORMAL / HARD (chosen by country)
- 20 countries - Each with unique parameters for high replayability
- Full localization - Japanese / English / Simplified Chinese / Traditional Chinese / Korean / Russian / German / French / Spanish / Brazilian Portuguese / Italian
- Steam Cloud - Sync your saves across devices
For players who love
- Pandemic-style infection-spread simulations
- Cyberpunk and hacking aesthetics
- Idle games with deep strategy
- Mid-scale indie titles with high replayability
Hacking is an art form. Sign the world with your virus.
Game details
Game details
Age ratings
Game modes
Languages
Signal Zero price history
Lowest tracked price: €3.15 (Jul 7, 2026) · current best: €3.15.
Signal Zero reviews
0% positive reviews all-time.
Signal Zero — frequently asked questions
Where can I buy Signal Zero at the cheapest price?
Right now the cheapest offer for Signal Zero is €3.15 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Signal Zero has ever been?
The lowest price KingsPrice has tracked for Signal Zero is €3.15 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How can I get Signal Zero at a discount?
Create a free price alert on this page and KingsPrice will email you when Signal Zero 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 10 64-bit
- Processor: Intel Core i3 / AMD equivalent (2.0 GHz)
- Memory: 2048 MB RAM
- Graphics: DirectX 11 compatible (integrated GPU acceptable)
- DirectX: Version 11
- Storage: 1024 MB available space
- Sound Card: DirectX compatible
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 10/11 64-bit
- Processor: Intel Core i5 / AMD equivalent (2.5 GHz)
- Memory: 2048 MB RAM
- Graphics: DirectX 11 compatible
- DirectX: Version 11
- Storage: 1024 MB available space
- Sound Card: DirectX compatible












