You wake up alone.

No laboratory accident.

No mysterious device.

No giant waiting to find you.

Just silence.

Overnight, you've somehow been reduced to 0.5 millimeters (0.02 ) tall inside your own apartment. The bed you fell asleep on has become a mountain range, the floor lies impossibly far below, and the phone sitting on your nightstand might as well be on another continent.

The apartment building continues living without you.

Your neighbors go to work.

Packages arrive.

The loud couple next door keep everyone awake.

Kayla—the traveling nurse who occasionally shares a drink with you downstairs—still thinks you're just the awkward guy from the fifth floor. She has no idea you're fighting for your life beneath her apartment.

No one knows you've disappeared.

No one is looking for you.

Maintenance rarely enters occupied apartments.

Rent is still due.

Every day the world moves on while you struggle to survive inside a home that has become unimaginably vast.

Explore a living apartment where every room is a unique biome, every object can become a lifesaving resource, and every journey requires planning. Build shelters, gather supplies, study your neighbors, brave the hallway, discover hidden routes through the building, or search for someone willing—and able—to believe the impossible.

There are no quests.

No scripted rescue.

No guaranteed ending.

Only one question remains:

How long can you survive in a world that no longer knows you exist?