City of Sin - The Nocturne Files [Ep1]
In a city where power is measured in secrets, Kate Adler is no stranger to deception. A sharp-witted investigator with a talent for navigating lies, she's handed a rare lead, an invitation to Nocturne, the clandestine club where the elite shed their masks and morality.
Last Updated: 2/5/2026
| Steam Price | $10.99 |
| Release Date | 1/3/2026 |
| Developer | DoAdventures |
| Publisher | DoAdventures |
| Steam App Id | 4153410 |
City of Sin - The Nocturne Files [Ep1]
In a city where power is measured in secrets, Kate Adler is no stranger to deception. A sharp-witted investigator with a talent for navigating lies, she's handed a rare lead, an invitation to Nocturne, the clandestine club where the elite shed their masks and morality.
Last Updated: 2/5/2026
![City of Sin - The Nocturne Files [Ep1] banner](https://cdn.akamai.steamstatic.com/steam/apps/4153410/3308e5ab0e151d0670f1d69806cce38daa0b97f3/header.jpg)
- Windows
- Mac
- Linux
- Steam Deck (Playable)
About City of Sin - The Nocturne Files [Ep1]
City of Sin - The Nocturne Files [Ep1] is a Casual, and Indie game developed by DoAdventures. On 1/3/2026, it was released on the Steam Store by DoAdventures.
It can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play City of Sin - The Nocturne Files [Ep1] on the Steam Deck but some functionality may not be fully supported.
It also supports 8 languanges in-game including English, French, Italian, German, and Spanish (Spain). Each language comes with varying levels of support for the in-game interface, audio, and fully translated subtitles.
According to Steam’s category system, City of Sin - The Nocturne Files [Ep1] supports the following features:
- Family Sharing
- Steam Achievements
- Single-player
From the Steam community, City of Sin - The Nocturne Files [Ep1] has been tagged with the following user tags:
- Text-Based
- Multiple Endings
- Story Rich
- 3D
- Choices Matter
- Nudity
- Sexual Content
- Indie
- Casual
- Singleplayer
- Female Protagonist
Related Packages
City of Sin - The Nocturne Files [Ep1] 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 |
|---|---|---|
| City of Sin - The Nocturne Files | $10.99 | View |
Supported Languages and Localizations
City of Sin - The Nocturne Files [Ep1] is available in 8 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 |
| French | Yes | No | Yes |
| Italian | Yes | No | Yes |
| German | Yes | No | Yes |
| Spanish (Spain) | Yes | No | Yes |
| Russian | Yes | No | Yes |
| Chinese (Simplified) | Yes | No | Yes |
| Turkish | Yes | No | Yes |
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Soures & References
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City of Sin - The Nocturne Files [Ep1] data has been sourced from:
- Valve Corporation. (2026, February 5). City of Sin - The Nocturne Files [Ep1] on Steam. Steam Store.
- Valve Corporation. (2026, February 5). City of Sin - The Nocturne Files [Ep1]. Steam Community Hub.