Steam

Injection No.9 - Chapter 1 (The Prologue)

Also known as Injection No.9 - Chapter 1 (The Prologue), in9c1p, injection no 9 chapter 1 prologue

Injection No.9 - Prologue is the first standalone episode of a psychological horror series. Investigate a decaying asylum after an anonymous tip, with only brief messages guiding you as reality breaks apart.

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Last update

18 May 2026

Original sources

Latest update

AnnouncementPublished 15 Jun 2025

v15.06.2025Update: 15.06.2025

✨ Added 🧟‍♂️ New jump scares 📱 Helper UI that shows the inputs for the phone 👓 Tutorial on how to use the glasses (camera) 🔧 Updated 🧍‍♂️ Human body poster is now more detailed to help solve the puzzle faster 🚪 So…

7 changesGameplayUI/audio

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Latest updates

Update history

Browse past updates and patch notes for this game.

5updates

June 2025
Added: Confirmation prompt when interacting with the electricity box. Added: Lighting to directional signs for better visibility. Added: New menu setting to adjust sensitivity for door opening interactions. Added: Whisp…8 changesFixGameplaySecurity07 Jun 2025
Major Bugs FixFixed 2 major bugs. Sending a photo of a human body to the dispatcher resulted in: "There is nothing important." Starting a new game after already playing one would show all the old photos on your phone.Announcement2 changesFixGameplay03 Jun 2025
Fixed a bug that allowed the drawer to be dragged through walls Added new text to the security note to help players find the 5-digit code more easily Fixed a bug related to saving/loading from the menu Added numbers to…5 changesFixGameplaySecurity02 Jun 2025
The Nightmare Begins – Our Horror Game is Officially ReleasedAfter countless nights of development, testing, and terrifying ideas brought to life, we're beyond thrilled (and slightly scared) to announce that our horror game is now LIVE! 🎉 🕯️ This isn’t just a game — it’s a desc…Announcement2 changesUI/audioGameplay02 Jun 2025

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