My Best Friend's Sister
A night at your best friend’s house turns into a tempting choice between desire and restraint.
Last Updated: 1/16/2026
| Steam Price | $8.83 |
| Release Date | 1/9/2026 |
| Developer | Naughty Sister |
| Publisher | Naughty Sister |
| Steam App Id | 4007700 |
My Best Friend's Sister
A night at your best friend’s house turns into a tempting choice between desire and restraint.
Last Updated: 1/16/2026
- Windows
- Mac
- Linux
- Steam Deck (Playable)
About My Best Friend's Sister
My Best Friend's Sister is an Adventure, Casual, RPG, and Simulation game developed by Naughty Sister. On 1/9/2026, it was released on the Steam Store by Naughty Sister.
It can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play My Best Friend's Sister on the Steam Deck but some functionality may not be fully supported.
It also supports 16 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, My Best Friend's Sister supports the following features:
- Playable without Timed Input
- Steam Trading Cards
- Mouse Only Option
- Save Anytime
- Full controller support
- Steam Achievements
- Single-player
- Family Sharing
- Custom Volume Controls
From the Steam community, My Best Friend's Sister has been tagged with the following user tags:
- Drama
- Interactive Fiction
- Multiple Endings
- Story Rich
- Visual Novel
- Realistic
- RPG
- Choices Matter
- First-Person
- Mature
- Simulation
- Nudity
- Dating Sim
- Romance
- Sexual Content
- Casual
- FMV
- NSFW
- Adventure
- Singleplayer
- Emotional
Related Packages
My Best Friend's Sister 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 |
|---|---|---|
| My Best Friend's Sister | $8.83 | View |
Supported Languages and Localizations
My Best Friend's Sister is available in 16 different languages with varying levels of support for the in-game interface, audio, and fully translated subtitles.
| Name | Interface | Audio | Subtitles |
|---|---|---|---|
| English | Yes | Yes | Yes |
| French | Yes | No | Yes |
| Italian | Yes | No | Yes |
| German | Yes | No | Yes |
| Spanish (Spain) | Yes | No | Yes |
| Spanish (Latin America) | Yes | No | Yes |
| Chinese (Traditional) | Yes | No | Yes |
| Chinese (Simplified) | Yes | No | Yes |
| Korean | Yes | No | Yes |
| Dutch | Yes | No | No |
Discover Similar Games
Find a new game to play just like My Best Friend's Sister 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 My Best Friend's Sister.
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Soures & References
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My Best Friend's Sister data has been sourced from:
- Valve Corporation. (2026, January 16). My Best Friend's Sister on Steam. Steam Store.
- Valve Corporation. (2026, January 16). My Best Friend's Sister. Steam Community Hub.