Physics and experimentation

Cubes hold down floor buttonsThe cube’s weight holds the button downPassage state is linked to the buttons
PortalCubes hold down floor buttons
  1. The cube’s weight holds the button down
  2. Passage state is linked to the buttons
© Valve · Source ↗

The player experiments with material and environmental properties and observes the consequences.

Design tips

  • Show the force’s effect and let players safely test an assumption.

Examples