You awaken inside an elevator with no memory of who you are or how you got there. A calm system voice tells you that you are part of the Rebuild Test Program — an experiment designed to study the human mind and its integration with a digital system. Progress through test chambers, solve environmental puzzles, and observe the world around you. The story unfolds through dialogue, atmosphere, and your own conclusions. There are no enemies. No time pressure. Only you, the system guiding you, and the growing sense that not everything is as it seems.