In Tenebris

The protagonist wakes up in a research facility in an alternate reality, 1990s Russia. The operation went according to plan: his eyes are gone, replaced by an experimental implant. Now the world is a reflection of sound. However, everything is too quiet. Use sound to see your surroundings. Remember that every movement and sound has consequences. Open locked areas, find keys, and uncover the dark secrets of the corporation that led to the disaster.