A puzzle game inverts the concept of object permanence by making nothing exist outside the player's direct line of sight. In Object Impermanence, players navigate the ruins of an alien world after crash-landing, where environmental objects and hazards simply cease to exist whenever they're no longer being observed.

Gameplay draws from Portal-style puzzle design, requiring players to position alien spheres in specific locations to open doors and progress. The mechanic extends creatively to environmental interaction: a blocked sewer grate becomes passable only when the player turns away from it and walks backwards, whilst an oncoming train car vanishes instantly if the player stops looking at it. The game is scheduled for release in the fourth quarter of 2026, with a demo currently available on Steam.