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Watch trailer on Steam ↗Stellar Code
Fragaria · Published by Fragaria, Studio CAGE, Seikei Production
Content notice: This game contains depictions of violence. These include acts that directly threaten the lives of others or intimidation using weapons.
Very Positive — 97% positive (499 reviews) · 5 achievements
Last updated 4 Oct 2026
Mysterious phenomena from space. A researcher's fatal accident. Cryptic codes engraved on an unknown material. Together with your brilliant sister-in-law, you must unravel a mystery that could determine the fate of Earth. A sci-fi mystery visual novel of discovery and suspense.
£23.32
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Price history
Adventure, Indie · 2025 · More £15 - £30 games
Join your sister-in-law in unraveling enigmatic space phenomena and solving a deadly puzzle in Stellar Code, an adventure and indie game that challenges you to uncover secrets on the brink of humanity's future.
About this game
This game description was generated with AI. The game does not have English support. However, We would like to support English in the future.
Thank you for your understanding, and please stay tuned for further announcements.
Introduction
Stellar Code is the next-generation sci-fi mystery brought to you by the creators of The Witch of Ihanashi, a doujin visual novel that sold over 30,000 copies.
Overview
Prepare to unravel an extraordinary mystery.
While Stellar Code is a mystery visual novel, it deviates from traditional formats—there’s no need to identify culprits or decode intricate tricks.
Instead, the mystery you must solve is a cosmic enigma rooted in the wonders of space and theoretical physics.
No Prior Knowledge Required
You don’t need a background in science to enjoy this story.
The keys to solving the mystery will be revealed as you progress through the narrative.
All you need to do is question the unknown alongside the characters and immerse yourself in the unfolding story.
A Visual Novel Experience
As a visual novel, the primary focus is on following the story and uncovering its secrets.
System Requirements
Will my PC run this? →Minimum
- OS: Windows 11
- Processor: Intel(R) Core(TM) i3
- Memory: 8 GB RAM
- Storage: 4 GB available space
- Additional Notes: Display Resolution 1280x720
Recommended
- OS: Windows 11
- Processor: Intel(R) Core(TM) i7
- Memory: 16 GB RAM
- Storage: 4 GB available space
- Additional Notes: Display Resolution 1920x1080
Supported Languages
Latest news
Patch NotesOfficial
Version 1.6 Released
This version includes the following changes: - Fixed typos and text errors in the Japanese and Korean versions.Read full article on Community Announcements (fragaria)Patch NotesOfficial
Stellar Code - patch v1.5-
Fixed an issue where some text remained in Japanese in the Chinese and Korean DLCs.Read full article on Community Announcements (fragaria)AnnouncementsOfficial
[DLC Vol. 2] Artbook Release
Supports Japanese, Korean, and Simplified Chinese.The second DLC for Stellar Code, the official artbook, has now been released!This artbook features behind-the-scenes details about the characters that were not revealed in the main story, as well as early concept sketches created before their designs were finalized. It also includes development insights and stories about how Stellar Code came to take its current form—content that has not been shared elsewhere.Requirements to access the DLC:Stellar Code base game version 1.4 or laterCompletion of the main story (the DLC can be selected from the title screen after clearing the game)Note: Content included in this DLC may not be used for streaming or distribution. Please refer to the main Stellar Code store page for detailed streaming guidelines.Read full article on Community Announcements (fragaria)AnnouncementsOfficial
[DLC] Stellar Code - Continuum - Now on sale!
Sorry, the English version has not been prepared yetːsteamsadːThe PDF version of the booklet distributed at Comic Market 107 is now available on Steam as a DLC.It takes approximately 30–40 minutes to read, and the content is equivalent to the physical booklet.ContentsA bonus after-story short novel starring Momo-chanA collection of rough illustrations depicting the private lives of the main characters (6 characters in total)Read full article on Community Announcements (fragaria)Patch NotesOfficial
SaveData Compatibility
When playing in Chinese or Korean, we have discovered that save data is not compatible between Version 1.1 and Version 1.2. To address this, we have opened a beta branch that allows you to temporarily play Version 1.1. By accessing Version 1.1 through the beta branch, you will be able to use your previous save data.To use the beta branch, please open Properties → Betas from the Steam client’s product page and enter the following code: StellarCode11We sincerely apologize for the inconvenience caused by not realizing that save data could not be loaded.Note: This branch is intended for players using the Chinese or Korean versions. It is not designed for Japanese players to downgrade. In addition, this beta branch is only provided as a temporary downgrade option and is scheduled for removal within this year. From next year onward, please use the new version.Read full article on Community Announcements (fragaria)
