Null & Peta -Invasion of the Queen Bug-
The crazy comedy anime Null & Peta has been reborn as a thumb-threatening action adventure! Featuring sisterly cooperation, gorgeous event CGs—and plenty of secrets to explore!?
Offers
What are keyshops?Official stores
Official stores with direct support.
Demo (1)
Try this game before buying.
Multipacks (2)
DLCs (2)
About Null & Peta -Invasion of the Queen Bug-
Overview & Story
The crazy comedy anime Null & Peta has been reborn as a thumb-threatening action game!Null supports her sister from the sidelines while Peta equips an absurd arsenal of armaments to fix the bugs infesting cyberspace!
Featuring sisterly cooperation, gorgeous event CGs—and plenty of secrets to explore!?
The anime's writer Hato returns to tell another original story, and character designer Eku Takeshima has packed the game with new, exclusive art!
Debug the world!
Help Null and Peta defeat their true enemy, the Queen Bug!
Characters
Genius schoolgirl inventor and cyber-navigator.
Null's big sister! She loves her little sister.
A robot big sister created by Null. She doesn't seem to mind running into enemy bugs...!?
Game details
Game details
Age ratings
Game modes
Languages
Audio & text: Japanese
Text only: English, Simplified Chinese, Traditional Chinese
Null & Peta -Invasion of the Queen Bug- price history
Lowest tracked price: €3.90 (Jul 7, 2026) · current best: €3.90.
Null & Peta -Invasion of the Queen Bug- player count & reviews
73% positive reviews all-time · 1 peak players in the last 30 days.
Null & Peta -Invasion of the Queen Bug- — frequently asked questions
Where can I buy Null & Peta -Invasion of the Queen Bug- at the cheapest price?
Right now the cheapest offer for Null & Peta -Invasion of the Queen Bug- is €3.90 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Null & Peta -Invasion of the Queen Bug- has ever been?
The lowest price KingsPrice has tracked for Null & Peta -Invasion of the Queen Bug- is €3.90 (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 many people play Null & Peta -Invasion of the Queen Bug-?
Null & Peta -Invasion of the Queen Bug- peaked at 1 concurrent players on Steam in the last 30 days (highest on Jul 12, 2026). The player chart on this page updates daily.
How can I get Null & Peta -Invasion of the Queen Bug- at a discount?
Create a free price alert on this page and KingsPrice will email you when Null & Peta -Invasion of the Queen Bug- 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 8/8.1/10
- DirectX: Version 11
- Storage: 1500 MB available space
Recommended
- Requires a 64-bit processor and operating system
- OS *: Windows 8/8.1/10
- DirectX: Version 11
