a procedurally generated house

Impossible Rooms

An ordinary house, mostly. Walk it slowly. Notice what should not be possible.

WASD walk · mouse look · Space jump · C crouch (toggle) · ZX snap turn · E open, look, take · Shift hurry · Enter dismiss a message · N chalk a mark · Tab or J journal · M map · H follow the thread home · U sound · F frame rate · Esc pause

When something feels wrong, press N to chalk a mark. The house tells you what you caught when it ends.

Light every lantern in the house. Each one sits somewhere only an impossibility can take you. Then lift the great lantern in the Heart to end the house.