One Upon Light is a monochromatic top-down puzzle game with a photophobic protagonist. Trapped in a world of shifting shadows and light, players manipulate objects in the environment to create a path of shadows and avoid contact with light. The game utilizes unique mechanics revolving around the central theme of light and shadow. The protagonist’s past is incrementally hinted at as the player progresses through the game.
A one way door. These were once used to enforce lab movement protocols.