The Expansion
A psychological first-person horror experience set in endless Backrooms. Explore abandoned corridors, uncover hidden secrets, evade mysterious entities, and survive a world where every turn leads deeper into the unknown.
-20% Mixed · 134 reviews
57% positive (77 / 134)






A bizarre murder breaks the peace of Jin Xiao Apartment. As the new night guard, your only tools are the surveillance cameras and the residents' passing words. Everyone here has a secret. The truth is hidden between your screens and your deduction notes.
Released
August 25, 2026
Price
Platforms
Windows
Developer
Publisher
Last sync
October 4, 2026
"The Case of The Golden Night Apartment" is a live-action security guard simulation and deduction game.
The game contains descriptions of crime scenes, mild blood and gore, and psychological horror elements, but features no jump scares or chase sequences. All content serves the narrative and atmosphere, aiming to create a heart-pounding deduction experience.