About the Game
💟 Synopsis 💟
“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!
💟 Gameplay 💟
Open at Nine is a brothel management simulation game. Pair your girls with the right clients and assign them a room based on their preferences. Earn money based on customer satisfaction to pay off your debt. Use your “mighty sword” to level up your monster girls by initiating intimate “job training” sessions.
💟 Features 💟
- Delight your girls and your clients with a variety of themed rooms!
- Immerse yourself in a moving storyline!
- Enjoy 20 different H-scenes filled with animated CGs and embarrassingly lewd scenarios!
- Spend time with all sorts of monster girls, each with their own personality quirks!
Screenshots
10 images
Version Information
Steam Patch Notes
Official update history
On the site: Build 21310656
Up to date
Fix:
At business result view, pressing enter multiple times will keep increasing round/day
Fix:
Unable to properly save Autosave and manual saves when saving the game.
View on Steam
Unable to properly save Autosave and manual saves when saving the game.
Fix:
Unable to proceed with the game when failing to read the save path.
View on Steam
Unable to proceed with the game when failing to read the save path.
Fix:
Game will freeze on open if saved files are corrupted.
Saving at a different slot will make it update with autosave.
View on Steam
Game will freeze on open if saved files are corrupted.
Saving at a different slot will make it update with autosave.
營業砲房表演加入剪影演出
---
Business room animation added silhouette of girls and clients
View on Steam
---
Business room animation added silhouette of girls and clients
Bug fixes:
Cannot right click to cancel item use in first business tutorial.
If unlocked more than 12 stories, pensieve view change page button won't appear right away.
Clicking on girls in Dorm/Scout rapidly will shrink them.
Fixed some typos and translation issues.
Changes:
Pensieve will not show extra slots.
Only show title logo when first entering the game.
After credits, load straight back into the game instead of title screen to avoid confusion.
Client's preferred race icon will show grey if the girl is not signed.
Girl's stamina will show as minus when assigned to clients that have greater sex abilities.
Change the door knock sfx when paying debt to avoid scaring players with headphones on.
New:
Added settings menu to business pause menu.
Added 2 new business options to settings menu.
If already done all the tutorials, when opening a new game player will have the option to skip all tutorials.
View on Steam
Cannot right click to cancel item use in first business tutorial.
If unlocked more than 12 stories, pensieve view change page button won't appear right away.
Clicking on girls in Dorm/Scout rapidly will shrink them.
Fixed some typos and translation issues.
Changes:
Pensieve will not show extra slots.
Only show title logo when first entering the game.
After credits, load straight back into the game instead of title screen to avoid confusion.
Client's preferred race icon will show grey if the girl is not signed.
Girl's stamina will show as minus when assigned to clients that have greater sex abilities.
Change the door knock sfx when paying debt to avoid scaring players with headphones on.
New:
Added settings menu to business pause menu.
Added 2 new business options to settings menu.
If already done all the tutorials, when opening a new game player will have the option to skip all tutorials.
更新: 遊戲exe的icon置入
修正: 購買角色後宿舍解鎖HCG Loading會卡住
修正: 妓探教學簽約星空後退出遊戲, 再進遊戲會卡教學流程
View on Steam
修正: 購買角色後宿舍解鎖HCG Loading會卡住
修正: 妓探教學簽約星空後退出遊戲, 再進遊戲會卡教學流程
修正英文砲房教學鍵值
View on Steam
Current Release
Build 21310656
Uploaded Oct 11, 2026
System Requirements
OS
N/A
CPU
Core 2+
RAM
2 GB RAM
GPU
HD620
How to Install
1
Download all files
2
Extract the .ZIP file to a folder (use WinRAR or 7-Zip)
3
Run OpenAtNine.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
Archive password
Needed when extracting (WinRAR / 7-Zip) — not a site login.
CRC32
AD6DB60A
SHA-256
b59fbf54da235fce374b4e7408523581c4aebac3920155849e80e273d263a4bc
How: Right-click the downloaded file → 7-Zip / WinRAR → CRC SHA → compare with the values above.
You May Also Like
View All
Download Open At Nine for PC with a direct link or via torrent. Get the full version of Open At Nine for free. Open At Nine is a Casual released by Black Cat Entertainment.