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Full Steam announcements and update articles for this title.
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 later
Completion 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.
Sorry, the English version has not been prepared yetːsteamsadː
The 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.
Contents
A bonus after-story short novel starring Momo-chan
A collection of rough illustrations depicting the private lives of the main characters (6 characters in total)
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: StellarCode11
We 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.
Even when Japanese is selected in the language settings, Simplified Chinese and Korean can now also be chosen from Config.
Fixed an issue where Auto mode and Skip mode would stop during certain scenes.
Corrected typos, misspellings, and furigana.
Community items have been added to "Title"! You can now get badges, trading cards, profile backgrounds, and more—come take a look!
You are about to unravel an unbelievable mystery.
While this is a mystery-themed visual novel, it differs from conventional mysteries — there are no culprits to catch or tricks to deduce.
The mystery you must solve is one rooted in the cosmos and theoretical physics.
From the creators of The Witch of Toyotoki, a doujin visual novel that has sold over 30,000 copies, comes a new era of sci-fi mystery.
Estimated playtime: 5–7 hours.
Get ready for the release of a bold new science fiction mystery.
We really want to support English version. Now looking for a translation partner.
Some of the puzzles have been adjusted. (These changes apply to the Japanese version only.)
Starting with this version, the in-game language selection feature has been removed. To play in a language other than Japanese, please change your Steam language setting and download the game again.
Please note that save data from previous versions is not compatible.
About
This page aggregates Steam news feeds, patch notes, and developer announcements for Stellar Code, sourced from official Steam community posts.
Major updates, balance changes, and seasonal events often correlate with player-count spikes — cross-reference announcements here with the live charts on the main Stellar Code statistics page.
Articles link back to Steam for full changelogs. SteamScope refreshes news entries as new posts are published to the game's Steam hub.