
Screenshots

Watch trailer on Steam ↗Knock Knock!
Inner Realm Studios · Published by Inner Realm Studios
1 user reviews — 0% positive (1 reviews) · 1 achievements
Last updated 28 Sept 2026
"Knock Knock!" is a horror experiment played with your ears, not your eyes. Navigate a pitch-black mansion using 3D binaural soundmarks to find the door. Designed for zero-visibility, featuring native menu narration for a fully accessible, high-tension experience for all players.
£2.49
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Price history
Indie · 2026 · More under £5 games
About this game
Knock Knock! is an experimental horror game played with your ears, not your eyes.
You are trapped in a pitch-black mansion with zero visibility. Your only guide is a constant, rhythmic knocking. Your objective is simple: navigate the darkness, find the door, and answer it.
Your footsteps distinguish various floor materials, helping you understand your location. Haunting sounds around you create "Soundmarks" - landmarks made of sound - to help you mentally map out the mansion. You must use these cues to finally find the door and see who is so determined to speak to you.
Binaural Spatial Audio:
The game utilizes Binaural Spatial Audio to replicate 3D soundscapes. Cues are muffled through walls or dampened based on their orientation to your ears, providing a true sense of presence in the dark. Your footsteps distinguish various floor materials helping you orient yourself.
Visually-impaired Accessibility:
Designed from the ground up to be played with zero visibility, Knock Knock! provides a nearly identical, high-tension experience for both sighted and visually impaired players.
Gameplay Features:
Play time: 15–60 Minutes.
Zero visibility Exploration: You must navigate the mansion with zero visibility, relying solely on your ears.
Soundmarks: Use haunting audio cues to mentally map the layout of the game.
Native Narration: All menus and texts are read aloud automatically, requiring no external screen reader setup.
Warning: Uncomfortable audio.
*Headphones are recommended for the intended binaural experience.
System Requirements
Will my PC run this? →Minimum
- OS: Windows 10
- Processor: Intel Core i3 Dual Core
- Memory: 4 GB RAM
- Graphics: NVIDIA Geforce GTS 450 / AMD Radeon HD 5570
- Storage: 500 MB available space






