The Quiet Collapse is an interactive web-based experience exploring depression through space, repetition and subtle shifts in perception. The project places the user in a looping domestic environment where everyday actions gradually reveal changes in self-image, the world and the future. Built with React and WebGPU, it combines real-time 3D, sound, lighting and game-like interaction to translate inner psychological states into spatial and sensory feedback. Rather than presenting depression as a linear story, the work creates a fragile system of small decisions, delayed consequences and unstable emotional balance. The website address for the art game: https://quiet.creatoth.com/