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The soul is square… probably. A certain girl stepped into the virtual world.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Social Deduction Fest ends
Official stores with direct support.
Other games from the same series.
An action puzzle game in the style of Sokoban.
Over 100 puzzle stages.
Multiple characters with unique personalities.
A story featuring a kawaii girl as the protagonist.
Gameplay alternates between puzzle stages and story segments.
Scenario written by 泉八郎 (Hachirō Izumi).
Character design by 十々夜 (Tootooya).
A port of a Japanese flip phone title (feature phones popular before smartphones).
This release does not add elements such as languages and achievements that were not part of the original version.
Flash Motor Karen is an action puzzle game in the style of Sokoban.
While puzzles are the core of the gameplay, it also features an excellent story.
A cool world setting, a wonderful narrative, and unique characters define its charm.
A little ways into the future from today.
A vast virtual space known as “Frontier” was born on the global network.
As its name suggests, it was steadily becoming humanity’s second frontier — a new domain woven into everyday society.
An overcrowded connection population.
Countless users and the thoughts swirling among them.
An ever-expanding electronic frontier.
It was only natural that new disasters or crimes—yet unseen—would eventually arise.
The protagonist, Karen, becomes an agent tasked with protecting Frontier after a certain incident changes her fate.
Together with her partner, Lag, she sets out to solve a wide range of cases!
Clearing a set of 10 puzzle stages unlocks new story content.
As you progress through the story, the variety of puzzles increases.
Play through more than 100 puzzles in all.
As the story progresses, puzzles get harder and you unlock more skills.
Can you solve them all?
Let’s start the mission!
