Null & Peta -Invasion of the Queen Bug-

Null & Peta -Invasion of the Queen Bug-

TOKYOTOON · January 31, 2020 · Action, Anime, Cute, Sci-fi, Exploration

Buy Null & Peta -Invasion of the Queen Bug- from Steam at $3.99 — the cheapest of 1 store we compare.

PC
Mostly Positive73% · 112 📈 Making a comeback 81%
Best price 75 All-time low
$3.99-80%
$19.99⭐ lowest tracked
Steam Buy at Steam

Prices last checked

More games under $5 →More Steam deals →

Where to buy Null & Peta -Invasion of the Queen Bug- — official stores

Steam
Steam
Standard Edition · Steam
-80%
$3.99
$19.99
Buy

Null & Peta -Invasion of the Queen Bug- price by region

Null & Peta -Invasion of the Queen Bug- costs £3.35 in the United Kingdom, €3.90 in Europe (EUR), $3.99 in the United States, CA$5.19 in Canada, NZ$5.79 in New Zealand, A$5.90 in Australia, $11.05 in Georgia (USD), R$11.99 in Brazil and zł18.39 in Poland right now.

Cheapest Null & Peta -Invasion of the Queen Bug- offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
United Kingdom £3.35 −80% £3.35 — 1
Europe (EUR) €3.90 −80% €3.90 — 1
United Statesyour region $3.99 −80% $3.99 — 1
Canada CA$5.19 −80% CA$5.19 — 1
New Zealand NZ$5.79 −80% NZ$5.79 — 1
Australia A$5.90 −80% A$5.90 — 1
Georgia (USD) $11.05 $11.05 — 1
Brazil R$11.99 −80% R$11.99 — 1
Poland zł18.39 zł18.39 — 1

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Screenshots

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...!?

Null & Peta -Invasion of the Queen Bug- — game info

Platforms
Windows
Player modes
Single-player
Controller
Partial controller support
PC Game Pass
Not included

DLC & expansions

🎁 Complete the collection

Base game + 1 of 1 DLC at today's best prices.

$13.98
to own everything

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Not recommended Jan 2, 2024
This game is TORTURE. The movement and clunky design, not to mention the basic AF gameplay, makes this game almost unplayable.
3 found this helpful
Recommended Feb 21, 2026
⣿⣿⣷⠻⣦⡶⢈⣴⣿⣿⣿⢿⣿⣿⣿⣿⣿⣷⣝⢮⠻⣷⣝⢾⡿⠃⠻⣿⣿⣿ ⣿⣿⣷⣴⠞⣴⣿⡏⣿⣿⣿⣦⠻⢿⣿⣿⣿⣿⣿⣷⡀⠙⣿⣷⡙⣆⣿⣿⣿⣿ ⣿⣿⣿⡟⣼⣿⠿⢃⠻⢿⣿⣿⠰⢇⢽⡟⢿⣿⣿⣿⣿⡄⢿⣿⣷⠘⢿⣿⣿⣿ ⣿⣿⡿⢹⢸⣿⢰⡝⡅⡆⢿⣿⣿⢸⣦⠙⠆⠙⢿⡏⠿⣷⡈⣿⣿⡇⠰⣍⢿⣿ ⣿⣿⡇⣿⢸⣿⢸⢡⣷⡘⡄⠻⣿⡆⡷⠚⡙⠢⡀⣙⠀⣿⡇⢹⣿⣿⡀⣿⣆⣿ ⣿⣿⠃⣿⢸⡿⢎⠴⠚⢿⣮⣬⣦⡉⣇⠠⣷⠂⢹⣿⢠⢇⣴⢸⣿⣿⠁⣿⣿⢸ ⣿⡇⡀⣿⠀⠇⢸⢀⣧⠄⣿⣿⣿⣿⣿⣆⣘⣠⣾⣇⡄⣾⣿⠘⠟⠁⠀⣿⣿⣸ ⣿⡇⣧⠹⡇⠀⣿⣇⠘⢀⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣇⢹⣿⡀⡖⠀⢸⡿⢃⡘ ⣿⣷⠹⠆⠳⠀⣿⣿⣿⣿⣿⣿⣿⠛⠻⣿⣿⣿⣿⣿⡿⠀⣿⡇⠀⠀⠘⠁⣾⣇ ⣿⣿⢢⡀⠱⣆⠹⣿⣿⣿⣿⣿⣿⣘⣣⣼⢿⣿⠿⠋⠀⠀⢻⡇⢀⠀⣀⠀⣿⡟ SUBARASHI!!
1 found this helpful
Recommended Feb 21, 2026
Null & Peta -Invasion of the Queen Bug-, developed by TOKYOTOON and published by Shiravune, is a side-scrolling 2D action game that expands upon the quirky sci-fi universe established in the Null & Peta anime. Rather than presenting itself as a deeply complex action title, the game embraces its identity as a character-driven spin-off, combining straightforward platforming combat with vibrant anime aesthetics and narrative segments designed to appeal especially to fans of the franchise. At its core, the story centers on the genius inventor Null and her android creation Peta as they confront a digital menace known as the Queen Bug, a corrupting force threatening their world. The gameplay follows a traditional side-scrolling action formula. Players control Peta, who navigates through various stages filled with mechanical enemies, traps, and boss encounters. Movement and combat are simple and accessible, with a focus on shooting, dodging, and timing attacks carefully to survive waves of adversaries. While the mechanics do not attempt to reinvent the genre, they provide a consistent action loop that is easy to grasp. Levels are structured to gradually introduce new enemy types and envi…
Recommended Aug 23, 2025
tokyotoon please come back
Not recommended Dec 8, 2024
Is this a joke? This has to be the clunkiest most badly made platformer I've ever played. You have to see it to believe it. First, the text: the text font used in English is way too big. It goes out of the text box (meaning it's not really a text box, it's just a background they write text on: big difference) and also often right out of the screen. You can already smell the "quality" before even starting to play. /S So there is some BS story putting your character in a "virtual reality": understand a 2D platformer. Everything feels stiff. I can only imagine someone without any experience of programming adequate controls has made them, and there was no QA team worth a damn to ensure it was decent enough. Also, and I didn't understand at the moment, you get interrupted by various pictures of the two girls. This has to be an high-school project. I went up to the first boss. I'm used to Souls and difficult games and this one is clearly not. But as easy as it may want to be, I'm pretty sure rushing to the boss sprite and hitting attack until it dies should not be a acceptable way to kill a boss. It took about five seconds. That's when I decided I had enough. I was puzzled as how…
Recommended Oct 27, 2023
cute game

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