STG has reached a new frontier! 2D bullet-hell sci-fi action shooter with mouse control and multiple buttons!
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Early Access Game

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Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Our team has been working on the project while showing our development progress at various exhibition events.
This has been a great motivator for our work as well as for publicity.
However, due to COVID-19, it is currently difficult to do so due to the uncertainty of various events.
Therefore, we are looking to make up for the lack with the opening of the Steam store and early access.
The concrete plan is to first release a demo version and early access, while gathering feedback on the Steam community.
In particular, we will respond to feedback on bugs, language issues, and discrepancies in playability, and will release the final version when we have reached 100% completion.”

Approximately how long will this game be in Early Access?

“It is expected to take about a year and a half.
However, it will be extended if necessary.”

How is the full version planned to differ from the Early Access version?

“It will eventually offer three basic stages and a player character that can be uniquely customized.”

What is the current state of the Early Access version?

“The player character is controlled and one unfinished stage is ready to play.
The UI for options, etc. is also ready.
Player Character:
The character can be moved with the mouse, and various keys can be used to perform special moves.
Although it is not possible to do so at this time, it is planned to be able to customize the weapons (special moves) eventually.
One unfinished stage:
The basic parts of the stage are completed and ready to play. We plan to update the placement of boss characters, etc. in the future.
Key configuration, volume adjustment, etc. are available.”

Will the game be priced differently during and after Early Access?

“There will be no price change after early access ends.”

How are you planning on involving the Community in your development process?

“We would like to use Steamcommunity to receive reports of problems, fix them, and brush up on the translation.”
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Planned Release Date: Undecided

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About This Game


This is a high difficulty 2D bullet-hell sci-fi action shooting game in which the player controls his/her ship with the mouse.
In this title, in addition to shooting game-like shot attacks
You can use a number of unique "methods (special moves)" to destroy your enemies.

In this work, the user has the freedom to control their own aircraft with the mouse and the intuitive choice of attacks with multiple buttons.
It provides more freedom in high-speed combat by removing the fetters of cross keys, levers, speed limitations, and the choice of attack methods by items.

Method Introduction

In preparation...


-Shaded Arkarium-
In the past, a world on the brink of unprecedented crisis due to an all-out war.
The world's destruction was averted by the sudden appearance of a being called the "Eternity".
In a world where air and soil pollution has worsened, the "Eternity" develops and builds a huge isolation platform called the "Arkarium" in order to escape from the critical situation in which they are living.
Under the control of the "Eternity," people are living happily in the "Arkarium".

In preparation...


Ai (Player character)
A self-proclaimed well-mannered civilian lives in Arkarium.
She thought she had been living an earnest life while cutting corners moderately, but in a strange turn of events, she died in an accident.
With Maya's help, she gains a temporary life, but next she is hunted by "Eternity".
What the heck?

A mysterious entity that ran over and killed Ai and brought him back to life.
She said that has lost her body and is unable to perform to her original specifications.
Maya is helping Ai to regain their bodies while compensating for the loss of Ai's body.
She is a musclebrain, thinks about everything after beats everything.

System Requirements

    • OS: windows 8.1/10
    • Memory: 4 GB RAM
    • DirectX: Version 11
    • Storage: 2 GB available space
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