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Stellar Code
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.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-25.
“Solid sci fi visual novel Good: + Some puzzle/detective elements (hint system is available) + Short and concise story without fluff + Good mystery with an uncommon theme Bad: - No voice acting - Art can be better (but this is kind of their style) Rating: 4/5 Dial soap bars”
— a player, Steam review · 6 hrs playedAchievement stats
Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.
Price tracking
US-region pricing (USD), sampled twice daily by our own tracker since 2026-09-26. Steam prices vary by region — always confirm your local price on Steam.
Regional prices at last sample, in local currency — Steam sets each region's price independently.
Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-25). Relative comparison only.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
Version 1.6 Released
This version includes the following changes: - Fixed typos and text errors in the Japanese and Korean versions.
Stellar Code - patch v1.5-
Fixed an issue where some text remained in Japanese in the Chinese and Korean DLCs.
[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 t
[DLC] Stellar Code - Continuum - Now on sale!
Sorry, the English version has not been prepared yet ːsteamsadː 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
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
Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-09-25.
| Genres | Adventure, Indie |
| Player tags | Adventure · Visual Novel · Choose Your Own Adventure · 2D Platformer · 2D · Cute · Sci-fi · Anime · Mystery · Space · Romance · Futuristic (Steam store community voting) |
| Features | Single-player · Steam Achievements · Family Sharing |
| Languages | Japanese, Korean, Simplified Chinese |
| Achievements | 5 |
Minimum system requirements (PC)
Minimum: OS: Windows 11 Processor: Intel(R) Core(TM) i3 Memory: 8 GB RAM Storage: 4 GB available space Additional Notes: Display Resolution 1280x720