Knock Knock! — An Audio-First Horror Experience

Knock Knock! is an experimental horror game played with your ears rather than your eyes. You are sealed inside a pitch-black mansion with zero visibility, and your only guide is a steady, rhythmic knocking that cuts through the silence. Your objective is deceptively simple and deeply unsettling: navigate the darkness, find the door, and answer it.

Your footsteps become clues. They distinguish different floor materials, letting you infer your location as you drift through the unseen rooms. Haunting audio cues form Soundmarks—sound-based landmarks you use to construct a mental map of the mansion. By listening closely and tracing these acoustic hints, you chart a path toward the door and the figure waiting beyond it.

The experience is anchored in Binaural Spatial Audio, creating a convincing 3D soundscape. Cues are muffled through walls and attenuated by their orientation to your ears, delivering a true sense of presence in the dark. This thoughtful design makes the game accessible to visually impaired players while maintaining a gripping tension for sighted players alike.

Accessibility is central to Knock Knock!. It is designed from the ground up for zero-visibility play, and all menus and texts are read aloud by native narration—requiring no external screen reader. The result is a nearly identical, high-tension experience for both visually impaired and sighted players.

Play sessions typically run between 15 and 60 minutes. The core loop blends silent exploration with attentive listening: map the mansion with Soundmarks, deduce the layout from ambient and textual cues, and approach the door before the unknown caller behind it reveals itself. Be prepared for discomforting audio moments, and use headphones to experience the intended binaural effects.

In Knock Knock!, there are no visuals to lean on, only sound and memory. The tension comes from your inability to see, the reliability of your ears, and the mystery of who awaits you when you finally answer the knock.