| App ID | 3891440 |
| App Type | Game |
| Store Name | 日月谜书 MidnattsSol |
| Developer | 周坤滔, 赵璟钰, 邹童画, 吴晓行 |
| Publisher | Beijing Film Academy |
| Supported Systems | Windows |
| Technologies | Unreal Engine |
| Last Changenumber | 30486642 |
| Last Record Update | 8 August 2025 – 09:05:05 UTC ( |
| Release Date | 30 September 2025 – 07:00:00 UTC ( |
A dual-character 2.5D puzzle adventure where Sun and Moon swap roles in a distorted world. Control both characters across inverted spaces, solve time-shifting puzzles, and restore cosmic order. No combat, just pure atmospheric exploration and logic.
Additional Information
This game is excluded from Steam Family Sharing because: Free Game
| Developer | 周坤滔 | |||||||||||||||||||
| controller_support | full | |||||||||||||||||||
| ReleaseState | released | |||||||||||||||||||
| Publisher | Beijing Film Academy | |||||||||||||||||||
| IsFreeApp | Yes | |||||||||||||||||||
| Exclude from family sharing (exfgls) | 3 (Free Game) | |||||||||||||||||||
| Store Release Date | 8 August 2025 – 09:05:00 UTC ( |
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| osarch | 64 | |||||||||||||||||||
| community_hub_visible | Yes | |||||||||||||||||||
| Primary Genre | Free to Play (37) | |||||||||||||||||||
| Store Genres | Indie (23), RPG (3), Strategy (2), Free to Play (37) | |||||||||||||||||||
| Steam Release Date | 30 September 2025 – 07:00:00 UTC ( |
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| Store Asset Modification Time | 23 July 2025 – 10:19:15 UTC ( |
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| library_assets |
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| osextended | empty string | |||||||||||||||||||
| Is free on the store? | Yes | |||||||||||||||||||
| Detected Technologies (?) | Unreal Engine, Intel_OID SDK, Intel_oneTBB SDK, NVIDIA_Nsight_Aftermath SDK, Ogg SDK, Vorbis SDK, XAudio2 SDK | |||||||||||||||||||
| controllertagwizard | Yes | |||||||||||||||||||
| First seen on SteamDB | 18 July 2025 – 06:13:22 UTC ( |
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Supported Languages
| 1 Languages | Interface | Full Audio | Subtitles |
|---|---|---|---|
| Simplified Chinese | Yes | Yes | Yes |
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Steam charts
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- 0 players right now
- 2 24-hour peak
- 3 all-time peak
8 August 2025
SteamDB.info
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Store data
Monthly players breakdown
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| Month | Peak | Gain | % Gain | Average | Avg % Gain |
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Steam hub followers history
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How many players are playing 日月谜书 right now on Steam?
Steam player counter indicates there are currently 0 players live playing 日月谜书 on Steam.
日月谜书 had an all-time peak of 3 concurrent players on 8 August 2025.
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