SLEEPLESS Nocturne
An erotic fantasy visual novel from the twisted mind of Sei Shoujo of Bible Black fame. A pair of college students wanders into Black Rose Manor, an isolated estate located deep in the mountains once again.
Last Updated: 1/30/2026
| Steam Price | $17.99 |
| Release Date | 1/29/2026 |
| Developer | Empress |
| Publisher | MangaGamer |
| Steam App Id | 4217610 |
SLEEPLESS Nocturne
An erotic fantasy visual novel from the twisted mind of Sei Shoujo of Bible Black fame. A pair of college students wanders into Black Rose Manor, an isolated estate located deep in the mountains once again.
Last Updated: 1/30/2026
- Windows
- Mac
- Linux
- Steam Deck
About SLEEPLESS Nocturne
SLEEPLESS Nocturne is an Adventure, and Indie game developed by Empress. On 1/29/2026, it was released on the Steam Store by MangaGamer.
It can be played and ran on Windows systems. At the moment, it is not possible to play or run SLEEPLESS Nocturne on the Steam Deck.
According to Steam’s category system, SLEEPLESS Nocturne supports the following features:
- Family Sharing
- Mouse Only Option
- Save Anytime
- Single-player
- Steam Cloud
- Subtitle Options
- Custom Volume Controls
From the Steam community, SLEEPLESS Nocturne has been tagged with the following user tags:
- Drama
- Dark
- Multiple Endings
- Story Rich
- Visual Novel
- Comedy
- Mature
- Mystery
- Nudity
- Hentai
- Dating Sim
- Romance
- Choose Your Own Adventure
- Sexual Content
- Anime
- Indie
- NSFW
- Adventure
- Singleplayer
- 2D
Related Packages
SLEEPLESS Nocturne is referenced by 1 package in the Steam Store. A package (or sub) is simply an item that can be purchased on Steam.
| Name | Price | Actions |
|---|---|---|
| SLEEPLESS Nocturne | $17.99 | View |
Supported Languages and Localizations
SLEEPLESS Nocturne is available in 2 different languages with varying levels of support for the in-game interface, audio, and fully translated subtitles.
| Name | Interface | Audio | Subtitles |
|---|---|---|---|
| English | Yes | No | Yes |
| Japanese | No | Yes | No |
Discover Similar Games
Find a new game to play just like SLEEPLESS Nocturne through our curated lists. Steambase uses Steam's User Tag and Genre system (and other game stats) to curate a list of the best and most loved games similar to SLEEPLESS Nocturne.
Features & Categories
Frequently Asked Questions
Soures & References
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SLEEPLESS Nocturne data has been sourced from:
- Valve Corporation. (2026, January 30). SLEEPLESS Nocturne on Steam. Steam Store.
- Valve Corporation. (2026, January 30). SLEEPLESS Nocturne. Steam Community Hub.