Run from 67

A first-person game of hide-and-seek in a dark school. Find 6 backpacks on each
floor to unlock the seventh door and get out before Sixseven catches you.

He hunts by sound, not by sight. Sprinting carries far, walking half as far,
crouching almost nothing — and if you stand perfectly still, you make no sound
at all. A circle on the minimap shows exactly how far away you can be heard
right now.

Your flashlight both saves and betrays you: you see nothing without it, but
shine it in his face and he charges from across the floor. It runs down fast and
recharges at wall panels. Throw a coin to send the noise somewhere else and slip
past while he investigates.

Seven floors, each with its own light: night blue, emergency green, sodium
orange, ultraviolet, the pool, a fire alarm, and a total blackout.