Open At Nine
“Massive debt, a shabby brothel, and a naughty succubus… This is all I get for defeating the Demon God?!” Hire monster girls to attract customers and pay off your debts! Don't forget to give your girls lots of hands-on job training!
- Price:$9.99
- Release Date:4/13/2023
- Developer:Black Cat Entertainment
- Publishers:
- Last Updated:4/5/2025
- Steam App Id:2270600
Open At Nine
- Windows
- Mac
- Linux
- Steam Deck (Playable)
Steam Charts, Stats, and Live Player Count
At the moment, Open At Nine has 3 concurrent players online and in-game. This is 96% lower than its previous all-time peak of 83 players achieved on 7/2/2023.
Review History Chart
Track historical review trends and overall ratings for Open At Nine. It has received a total of 498 reviews on the Steam store and achieved a Player Score of 78 (Very Positive).
Community Hub Members & Followers Chart
Explore the cumulative breakdown of Steam community hub members for Open At Nine and its growth over time. It currently has 10,637 followers on its community page.
Open At Nine Price
Open At Nine costs $9.99 in the Steam store as of 4/5/2025. It can be purchased as a standlone game or through a bundle like Mango Party Bundle, monster girl bundle 2, Monster Girls Bundle, or VN bundle which offer a discount off the game's base price.
Explore the price history chart below to track historical price changes and other pricing stats for Open At Nine.
About Open At Nine
Open At Nine is a Simulation, and Casual game developed by Black Cat Entertainment. On 4/13/2023, it was released on the Steam Store by Mango Party News, and Mango Party.
Players have rated Open At Nine as "Very Positive" out of 498 total reviews on the Steam Store. These are split between 414 positive reviews and 84 negative reviews — an overall 83% positive review rating.
It can be played and ran on Windows systems. At the moment, it is possible to play Open At Nine on the Steam Deck but some functionaliy may not be fully supported.
According to Steam’s category system, Open At Nine supports the following features:
- Family Sharing
- Steam Cloud
- Steam Achievements
- Single-player
From the Steam community, Open At Nine has been tagged with the following user tags:
- Souls-like
- Management
- Fantasy
- VR
- Story Rich
- Visual Novel
- Medieval
- LGBTQ+
- Mature
- FPS
- Simulation
- Dating Sim
- Hentai
- Nudity
- Sexual Content
- Anime
- Casual
- NSFW
- Action
- Singleplayer
Media & Sceenshots
Watch the featured video for Open At Nine and see the latest screenshots from the Steam Store.
DLC & Related Apps
Open At Nine is referenced by 2 other related apps in the Steam Store.
| Image | Name | Type | Release Date | Actions |
|---|---|---|---|---|
 | 九點開張 Soundtrack | Music | 5/17/2024 | View |
 | Open at Nine Artbook | DLC | 5/18/2024 | View |
Related Bundles
Open At Nine is included in 4 bundles in the Steam Store.
| Image | Name | Apps | Packages | Price | Actions |
|---|---|---|---|---|---|
 | Mango Party Bundle | 37 | 36 | $332.46 | View |
 | monster girl bundle 2 | 6 | 6 | $16.88 | View |
| Monster Girls Bundle | 11 | 9 | $27.86 | View |
| VN bundle | 16 | 16 | $139.34 | View |
Related Packages
Open At Nine is referenced by 1 package in the Steam Store.
| Name | Price | Actions |
|---|---|---|
| Open At Nine | $8.99 | View |
Supported Languages
Open At Nine is available in 4 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 |
| Chinese (Traditional) | Yes | No | Yes |
| Japanese | Yes | Yes | Yes |
| Chinese (Simplified) | Yes | No | Yes |
Frequently Asked Questions
Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Data is enriched, cleansed, verified, and updated in realtime to ensure we surface the most up-to-date information. Learn more about the Steambase approach to data collection.
Open At Nine data has been sourced from:
- Valve Corporation. (2025, April 5). Open At Nine on Steam. Steam Store. https://store.steampowered.com/app/2270600
- Valve Corporation. (2025, April 5). Open At Nine. Steam Community Hub. https://steamcommunity.com/app/2270600