Apartment 403 is a first-person psychological thriller set inside a sealed, decaying mid-rise apartment building where the boundaries between memory and reality blur.
Time loops and fragments unpredictably. Rooms reshape themselves when unobserved. The player must navigate shifting spaces haunted by echoes of past residents' trauma while uncovering hidden secrets through cinematic quick-time events and nonlinear storytelling.
Supported by immersive sound design and reactive environments, Apartment 403 challenges your perception of reality and memory, creating a deeply unsettling experience that lingers long after you've stopped playing.
KEY FEATURES
- Reality-bending environment that shifts and changes when not directly observed
- Non-linear narrative that fragments and reconstructs based on player choices
- Cinematic quick-time events that blur the line between gameplay and cutscene
- Immersive 3D audio design that reacts to player's mental state and environment
- Psychological horror elements that challenge perception and memory
- Multiple endings based on how you interpret and interact with the apartment
GALLERY
Two perfectly portable sizes. The 13-inch version offers intimate horror, while the 15-inch model provides an expanded view into the nightmare.
13″
display
15″
display
A new color is in the air
Sky Blue
Silver
Gold
Space Gray
Now with Sky Blue, four beautiful colors will have you on cloud nine. And every version comes with a color-matched charging cable.
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DEVELOPMENT LOG
Follow our journey as we build Apartment 403
October 15, 2024
Narrative Structure Finalized
After months of iteration, we've finalized the core narrative structure for Apartment 403. The game will feature three distinct timelines that intersect in unexpected ways, with player choices determining which memories surface and how they connect. We've implemented a system where the apartment's layout physically changes based on the protagonist's mental state, creating a deeply personalized horror experience. The team has been working tirelessly on the environmental storytelling elements, ensuring that each room contains subtle clues about previous residents and the building's dark history. We're particularly excited about the bathroom sequence, which uses reflections and distorted geometry to create one of the most unsettling moments in the game.
September 3, 2024
Sound Design Progress
This month has been focused on audio implementation. Our sound designer has created a dynamic audio system that reacts to player proximity to memory fragments and emotional hotspots throughout the apartment. We've recorded over 200 unique ambient sounds that will be procedurally mixed based on the player's actions and mental state. The voice acting sessions for the main character and the building's 'presence' have been completed, with some truly haunting performances that exceeded our expectations. We've also implemented a system where whispers and voices become more or less intelligible based on the player's progress through the narrative.
August 12, 2024
Visual Effects and Lighting
The art team has made significant progress on the visual language of memory distortion. We've developed a custom shader that creates subtle warping effects when the player approaches areas where reality is thin. The lighting system now dynamically responds to the emotional weight of memories, with colors shifting between cold blues and warm ambers depending on the nature of the recollections being experienced. We've also finalized the character model for the protagonist's hands, which will be the only part of them visible during gameplay. Special attention was paid to subtle trembling animations that increase as the character's anxiety rises throughout the experience.
July 25, 2024
Gameplay Mechanics Testing
Initial playtesting of our core mechanics has yielded promising results. The 'memory echo' system, where players can temporarily rewind time to witness past events, has been particularly well-received. We've refined the controls to make the transition between present and past more intuitive, with visual cues that help players understand when they're shifting between timeframes. The puzzle design team has completed the first pass on all major environmental puzzles. Each is designed to reveal more about the apartment's history while challenging players to think about space and time in unconventional ways. We're especially proud of the living room sequence, which requires players to rearrange furniture to match specific memory configurations.