In Silent Walls : Sujet 13 game cover

In Silent Walls : Sujet 13 CD Key

Silent Walls: Subject 13 is a first-person psychological horror narrative game. Twenty years after your sister’s disappearance, you return to the abandoned Red Hollow Sanatorium to uncover the truth. Explore decayed halls, find documents, solve light puzzles, and face unsettling, mind-bending horror.
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Current Lowest Price

5.99$
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Release Date

12 Dec, 2025

Publisher/Developer

Hollow Signal Games

Reviews

Steam: 93.33% positive (14/15)
Metacritic: -

In Silent Walls : Sujet 13 Steam Price History Chart

Current Steam price: 5.99$
Lowest Steam price ever: 3.89$ — 2026-08-10
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In Silent Walls : Sujet 13 description

In Silent Walls: Subject 13

In Silent Walls: Subject 13 is a first-person psychological horror narrative experience where atmosphere, storytelling, and dread take center stage. Twenty years after your sister Elina vanished without a trace, you return to the place everyone avoided—the abandoned Red Hollow Sanatorium. The building is crumbling, the air is heavy, and the silence feels alive. You came for answers. What you find is a past that refuses to stay buried.

Step into decayed corridors and forgotten rooms as you investigate what happened to Elina and why the sanatorium was left to rot. The story unfolds gradually through environmental details, unsettling discoveries, and fragments of evidence that demand your attention. Old letters, official documents, and disturbing drawings reveal pieces of a truth that doesn’t want to be understood. The more you uncover, the more reality begins to shift—because in Red Hollow, memory is not harmless… it’s a presence.

Designed for players who love story-driven horror, this experience focuses on tension, suspense, and psychological unease rather than gore. Your progress depends on careful exploration and light puzzles that keep you moving deeper into the sanatorium’s secrets. Each step forward brings you closer to what happened inside these walls—and closer to the edge of your own mind.

Key features

  • Immersive, realistic atmosphere powered by Unreal Engine 5
  • Dark narrative mystery told through letters, documents, and environmental storytelling
  • Exploration-focused gameplay with light puzzles to unlock new areas and revelations
  • Psychological horror with terrifying, unsettling moments built on tension instead of gore
  • Indie project developed in France, driven by a personal, family-made vision

Return to Red Hollow. Listen to the silence. Follow the evidence. And remember: within these walls, the past isn’t gone—it’s waiting.